Pear tree disease and pest control method and pest expelling device

Abstract

The invention relates to a pear tree disease and pest control method and a pest expelling device.The pear tree disease and pest control method comprises the following steps that in the early spring period, a pest trapping lamp moves along the edge of an orchard, and pests entering the orchard are trapped and killed; pesticide is regularly sprayed to the pear trees in the orchard, and ultrasonic waves are emitted to the area where the pesticide is being sprayed in the orchard; in summer and autumn, the trap lamp moves along the edge of the orchard to trap and kill the pests transferred out of the orchard; pesticide is regularly sprayed to the pear trees in the orchard, and ultrasonic waves are emitted to the area where the pesticide is being sprayed in the orchard; in the pre-winter period, the trap lamp moves along the edge of the orchard to trap and kill pests entering from the outside of the orchard; pesticide is regularly sprayed to pear trees in the orchard, and ultrasonic waves are emitted to the area where the pesticide is being sprayed in the orchard and the edge of the orchard. Compared with the prior art, the insect killing efficiency can be improved, and the pesticide spraying frequency is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of pest control, and in particular to a method for controlling pests and diseases of pear trees and an insect repellent device. Background Art

[0002] The main insect pests of pear trees include Schizaphis pearensis, Pear yellow white aphid and Pear psylla. Schizaphis pearensis mainly harms leaves, causing them to curl, affecting photosynthesis and nutrient transport, and in severe cases, the leaves fall off. Pear yellow white aphid feeds in the low-lying areas of the fruit as adults and nymphs, causing yellow spots on the fruit that gradually turn into brown spots and eventually rot, seriously affecting the quality of the fruit. Both adults and nymphs of Pear psylla can harm leaves and tender shoots, causing sooty mold, which turns leaves black, and in severe cases causes leaf and fruit fall, affecting yield.

[0003] Aphids that harm pear trees are mostly active in early spring, especially from April to May when aphids reproduce fastest and this is the period when the damage is most serious. In summer and autumn, they move to other crops to cause damage, and then move back to pear trees before winter to lay eggs and overwinter.

[0004] Especially when spraying pesticides for aphids, some aphids will take advantage of their small size and hide in relatively hidden locations such as the back of leaves, the base of petioles, the crevices of young branches, or inside flower vases, making it difficult for pesticides to reach them. Some aphids can also sense the threat of pesticides, and when pesticides are sprayed, they will quickly move to parts that have not been contaminated by pesticides. Therefore, simply spraying pesticides cannot effectively kill the pear aphids, pear yellow powdery aphids, and pear psylla on pear trees. The pests on pear trees will continue to reproduce after a period of spraying pesticides, which greatly reduces the effectiveness of spraying pesticides. If pear trees are sprayed with pesticides at a high frequency, the pesticide residues on the pears will be too high.

[0005] In addition, during the pesticide spraying process, some pests will be transferred to crops of other products. After the effect of the pesticide has worn off, they will return to the pear trees, making the effect of pesticide spraying very poor, so it is necessary to solve these problems. Summary of the invention

[0006] The present invention aims to solve at least one of the above technical problems in the prior art to a certain extent. To this end, one object of the present invention is to provide a method and an insect repellent device for controlling pests and diseases in pear trees, which can improve the insecticide efficiency and reduce the frequency of spraying pesticides.

[0007] The technical solution of the present invention to solve the above technical problem is as follows: a method for controlling diseases and insect pests of pear trees, comprising the following steps:

[0008] In early spring, insect traps are set at set intervals at the edge of the orchard and in the orchard so that the insect traps can move along the edge of the orchard to trap and kill pests entering from outside the orchard; pear trees in the orchard are sprayed with pesticides regularly. According to the occurrence of pests and diseases, one fungicide + one insecticide + one miticide is selected each time (miticide is only needed when red spiders occur). Lime sulfur or Bordeaux mixture should be used separately when spraying, and the pesticides should be used in rotation. At the same time, the ultrasonic generator is started to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed;

[0009] In summer and autumn, start the insect trap lamp to move along the edge of the orchard to kill the pests that have moved out of the orchard; spray the pear trees in the orchard with pesticides regularly, and start the ultrasonic generator to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed;

[0010] In the pre-winter period, start the insect trap lamp and move it along the edge of the orchard to lure and kill pests entering from outside the orchard; regularly spray pesticides on the pear trees in the orchard, and start the ultrasonic generator at the same time to emit ultrasonic waves to the area in the orchard where pesticides are being sprayed and the edge of the orchard.

[0011] The beneficial effects of the present invention are as follows: an ultrasonic generator is used to emit ultrasonic waves to the orchard, so that pests are disturbed by the ultrasonic waves and migrate, and the pests are more likely to come into contact with the pesticide during the migration process, thereby improving the insecticide efficiency, reducing the frequency of spraying the pesticide, and reducing agricultural residues; insect-attracting lamps are also used to lure and kill pests entering and leaving the orchard, and the insect-attracting lamps can also be moved to areas with high incidence of pests, thereby further reducing the pests in the orchard.

[0012] Based on the above technical solution, the present invention can also be improved as follows.

[0013] Furthermore, in early spring, the pear trees in the orchard are sprayed with pesticides regularly, including lime sulfur, triadimefon, thiophanate-methyl, cypermethrin, bifenthrin, imidacloprid, and avermectin.

[0014] The beneficial effects of adopting the above further scheme are: lime sulfur, triadimefon, and thiophanate-methyl can effectively prevent and control diseases such as ring rot, black spot, brown spot, anthracnose, and pear rust; high-efficiency cypermethrin, bifenthrin, imidacloprid, and avermectin can effectively prevent and control pear aphids, pear gall midges, pear psyllids, scale insects, and longhorn beetles.

[0015] Furthermore, in summer and autumn, the pear trees in the orchard are sprayed with pesticides regularly, including difenoconazole, diniconazole, flusilazole, myclobutanil, mancozeb, Bordeaux mixture, acetamiprid, imidacloprid, emamectin benzoate, high-efficiency cypermethrin, deltamethrin, avermectin, and etoxazole.

[0016] The beneficial effects of adopting the above further scheme are: it can effectively prevent and control ring rot, black spot, brown spot, anthracnose, pear aphids, pear gall midges, pear psyllids, small borer, pear web bugs, and red spiders, thereby improving the efficiency of disease and insect pest control.

[0017] Furthermore, in the pre-winter period, the pear trees in the orchard were sprayed with pesticides regularly, including lime sulfur, cypermethrin, Bordeaux mixture, mineral oil, thiamethoxam, spirotetramat and chlorfenapyr.

[0018] The beneficial effects of adopting the above further scheme are: lime sulfur, cintamanib, Bordeaux mixture, mineral oil, thiamethoxam, spirotetramat and chlorfenapyr can improve the efficiency of pest control.

[0019] Another technical solution of the present invention to solve the above technical problems is as follows: an insect repellent device, including an insect attractant lamp and an ultrasonic generator, and also including a first bracket and a second bracket, the first bracket and the second bracket are detachably arranged in an orchard or at the edge of an orchard, the upper end of the first bracket is fixedly connected to the upper end of the second bracket by a connecting belt; the upper end of the insect attractant lamp is sleeved on the connecting belt, and the insect attractant lamp can move along the connecting belt; the ultrasonic generator is detachably placed at the lower end of the insect attractant lamp.

[0020] The beneficial effects of the present invention are as follows: insect-attracting lamps are used to construct an insect isolation zone at the edge of an orchard, so that pests transferred into or out of the orchard can be lured and killed, especially within a period of time after spraying pesticides, the luring and killing of pests is more efficient; an ultrasonic generator is used in conjunction with spraying pesticides to stimulate hidden pests to migrate, so that the migrated pests can come into contact with the pesticides, and pest control is more efficient.

[0021] Furthermore, a rotating shaft is provided at the upper end of the first bracket, and both ends of the rotating shaft are rotatably connected to the first bracket through bearings; a motor is fixedly provided at the upper end of the first bracket corresponding to one end of the rotating shaft, and the output end of the motor is connected to the rotating shaft; the rotating shaft is connected to the top of the insect attractant lamp through a pull rope.

[0022] The beneficial effect of adopting the above further solution is that the moving position of the insect attractant lamp can be adjusted by the motor, the rotating shaft and the pull rope, so that the insect attractant lamp can be conveniently controlled to move to the set position.

[0023] In the above embodiment, both the first bracket and the second bracket are telescopic brackets with adjustable heights, and the adjusted top horizontal height of the first bracket is higher than the top of the second bracket.

[0024] The beneficial effect of adopting the above further solution is: it is convenient to adjust the height of the first bracket and the second bracket, realize the control of the movement of the insect attractant lamp, and improve the convenience.

[0025] In the above embodiment, a controller is fixedly provided at the lower end of the motor, and a signal end of the controller is connected to a signal end of the motor; the signal end of the controller is also wirelessly connected to a movable control terminal.

[0026] The beneficial effect of adopting the above further scheme is: during the process of drone spraying of pesticides in the orchard, the ultrasonic generator emits ultrasonic waves to the orchard, reducing the impact of ultrasonic waves on operators.

[0027] In the above embodiment, a solar panel is fixedly provided at the upper end of the insect attractant lamp, and a detachable battery is placed at the lower end of the insect attractant lamp, the solar panel is electrically connected to the battery, and the battery is electrically connected to the insect attractant lamp.

[0028] The beneficial effect of adopting the above further scheme is that the solar panel can convert solar energy into electrical energy and transmit it to the battery for storage, and the battery then supplies power to the insect attractant lamp and the ultrasonic generator to ensure the efficient operation of the insect attractant lamp and the ultrasonic generator.

[0029] In the above embodiment, the insect-attracting lamp includes a lamp stand and a lamp body, the upper end of the lamp stand is provided with a through hole, and the lamp stand is mounted on the connecting belt through the through hole; the lamp body is fixedly placed in the lamp stand, and an electric grid surrounding the lamp body is fixedly provided on the outer periphery of the lamp body; a motor is fixedly provided in the lower end of the lamp stand, and a rotatable tool is provided in the lamp stand corresponding to the bottom of the lamp body, and the tool is connected to the output end of the motor.

[0030] The beneficial effect of adopting the above further scheme is: killing twice by the electric grid and the cutter can effectively improve the insect killing efficiency. During the rotation process, the cutter can also throw out the killed pests to avoid the accumulation of pests in the lamp frame, so that the electric grid and the cutter can maintain efficient operation and reduce the frequency of cleaning the lamp frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A flow chart of a method for controlling pests and diseases of pear trees according to the present invention;

[0032] Figure 2 is a front view of the insect repellent device of the present invention;

[0033] Figure 3 is a top view of the insect repellent device of the present invention;

[0034] Figure 4 It is a front view of the insect attractant lamp and ultrasonic generator of the present invention.

[0035] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0036] 1. insect trap lamp, 101. lamp holder, 102. lamp body, 103. electric grid, 104. cutter;

[0037] 2. Ultrasonic generator, 3. First bracket, 4. Second bracket, 5. Connecting belt, 6. Rotating shaft, 7. Motor, 8. Pull rope, 9. Controller, 10. Solar panel. DETAILED DESCRIPTION

[0038] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0039] like Figure 1 As shown, a method for controlling diseases and insect pests in pear trees comprises the following steps:

[0040] In early spring, insect trap lamps 1 are arranged at a set distance at the edge of the orchard and in the orchard, so that the insect trap lamps 1 move along the edge of the orchard to trap and kill pests entering from outside the orchard; pesticides are sprayed on the pear trees in the orchard regularly, and the ultrasonic generator 2 is started at the same time to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed;

[0041] In summer and autumn, the insect trap lamp 1 is started to move along the edge of the orchard to trap and kill the pests that have moved out of the orchard; the pear trees in the orchard are sprayed with pesticides regularly, and the ultrasonic generator 2 is started at the same time to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed;

[0042] In the pre-winter period, the insect trap lamp 1 is started to move along the edge of the orchard to lure and kill pests entering from outside the orchard; the pear trees in the orchard are sprayed with pesticides regularly, and the ultrasonic generator 2 is started at the same time to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed and the edge of the orchard.

[0043] In specific application, in early spring, various pests reproduce rapidly, especially aphids. Insect traps 1 are arranged at a set distance at the edge of the orchard and in the orchard. The insect traps 1 at the edge of the orchard can kill pests that move into or out of the orchard. The insect traps 1 in the orchard can kill pests in the orchard and reduce pest reproduction.

[0044] Pear trees in the orchard are sprayed with pesticides regularly, and ultrasonic generator 2 is used to emit ultrasonic waves to the area in the orchard where pesticides are being sprayed. The frequency of ultrasonic waves exceeds the frequency range of sounds that pests are exposed to on a daily basis. When pests are affected by ultrasonic waves, their auditory receptors are strongly stimulated. Pests hiding in relatively hidden locations such as the back of leaves, the base of petioles, the gaps between young branches, or inside flower vases will fly out or move out of the ultrasonic area after being affected by ultrasonic waves. At this time, spraying pesticides on the ultrasonic area can effectively spray the pesticides on the pests, thereby improving the insecticide efficiency. When some aphids sense the threat of pesticides, the influence of ultrasonic waves will also affect their transfer efficiency, thereby improving the insecticide efficiency.

[0045] In summer and autumn, aphids that harm pear trees transfer to other crops for harm; insect trap lights 1 are arranged at a set distance at the edge of the orchard. The insect trap lights 1 at the edge of the orchard can kill the pests that transfer into or out of the orchard, thereby reducing the reproduction of pests.

[0046] Pear trees in the orchard are sprayed with pesticides regularly, and the ultrasonic generator 2 is used to spray the pesticides to improve the insecticide efficiency.

[0047] In the pre-winter period, insect trap lamps 1 are arranged at a set distance on the edge of the orchard. The insect trap lamps 1 on the edge of the orchard can trap and kill the pests that migrate into the orchard, thereby reducing the reproduction of the pests.

[0048] Pear trees in the orchard are sprayed with pesticides regularly, and the ultrasonic generator 2 is used to spray the pesticides to improve the insecticide efficiency.

[0049] When spraying pesticides, this embodiment uses an ultrasonic generator 2 to emit ultrasonic waves to the orchard, so that pests are disturbed by the ultrasonic waves and move away. The pests are more likely to come into contact with the pesticides during the movement process, thereby improving the insecticide efficiency, reducing the frequency of spraying pesticides, and reducing agricultural residues. The insect trap lamp 1 is also used to lure and kill pests entering and leaving the orchard, and the insect trap lamp 1 can also be moved to areas with high incidence of pests to further reduce the pests in the orchard.

[0050] In the above embodiment, in early spring, the pear trees in the orchard are sprayed with pesticides regularly, including lime sulfur, triadimefon, thiophanate-methyl, high-efficiency cypermethrin, bifenthrin, imidacloprid, and avermectin.

[0051] In early spring, during the bud swelling period of pear trees in late February, spray 2 degrees Baume lime sulfur mixture on pear trees once. Lime sulfur mixture has a strong alkalinity and can work through the released hydrogen sulfide and sulfur elements. It has a preventive and therapeutic effect on various diseases of pear trees such as ring rot, black spot, brown spot, anthracnose, pear rust and other fungal diseases. The principle is that polysulfide can combine with the sulfhydryl (-SH) in the oxidoreductase in the pathogen cells, making the enzyme inactive, thereby interfering with the normal metabolic process of the pathogen. At the same time, it has a killing effect on overwintering pest eggs (such as mite eggs), can harden the egg shell, prevent the larvae from hatching, and play an insect-proof effect.

[0052] In March, during the flowering period and spring shoot growth period of pear trees, spraying 4.5% highly effective cypermethrin emulsifiable concentrate at 1500 times and 15% triadimefon wettable powder at 1000 times on pear trees in late March can prevent and control pear aphids, pear gall midges, and pear rust. Highly effective cypermethrin can quickly knock down pests. When pests come into contact with highly effective cypermethrin, the agent will penetrate the body wall of the pests and enter the body, acting on the pests' nervous system; it can interfere with the sodium ion channels of the pests' nerve cells, blocking nerve conduction, causing the pests to become excited, spasmodic, and eventually paralyzed and die. Highly effective cypermethrin has a good control effect on pear pests such as aphids and small borers. Triadimefon can be absorbed by the roots, stems, leaves and other parts of the pear tree and conducted in the plant body; triadimefon mainly inhibits the synthesis of ergosterol, an important component of fungal cell membranes; when ergosterol synthesis is blocked, the structure and function of the fungal cell membrane will be destroyed, leading to leakage of intracellular substances and ultimately the death of the pathogen. It has a good preventive and control effect on fungal diseases such as rust and powdery mildew of pear trees.

[0053] During the spring shoot growth period of pear trees in April, spray the trees with 3000 times of 10% cypermethrin emulsifiable concentrate and 1000 times of 15% triadimefon wettable powder in mid-April. In late April, spray the trees with 2000 times of 10% imidacloprid wettable powder, 2000 times of 3% avermectin, and 1000 times of 70% thiophanate-methyl wettable powder.

[0054] Bifenthrin works mainly by acting on the nervous system of insects. Bifenthrin can inhibit the conduction of insect nerve axons and block the nerve conduction of insects. When pear trees are attacked by pests such as spider mites and lepidopteran larvae, the use of bifenthrin can effectively kill the pests and reduce the damage to pear leaves and fruits caused by pests.

[0055] Imidacloprid mainly acts on the nervous system of pests. Imidacloprid can bind to the nicotinic acetylcholine receptors on the nerve cells of pests, blocking the acetylcholine receptor channels and disrupting normal nerve conduction. In this way, the pests will become paralyzed and die. Imidacloprid is mainly used on pear trees to control piercing-sucking pests such as aphids, because it can be absorbed by pear trees. When aphids suck the sap of pear trees, they will ingest imidacloprid and be killed.

[0056] Abamectin can stimulate the release of γ-aminobutyric acid (GABA), a neurotransmitter of pests, to open the chloride ion channels of nerve cells, resulting in the inability to transmit nerve signals normally, thus paralyzing and killing the pests. Abamectin has a good control effect on mites and some nematodes on pear trees, such as hawthorn spider mites. When mites come into contact with avermectin or ingest pear tree tissue containing avermectin, they will be affected by the agent and die;

[0057] After entering the body of the pear tree, thiophanate-methyl will be converted into carbendazim, which can interfere with the cell division process of the pathogen; it mainly works by inhibiting the formation of spindles during the mitosis of the pathogen, so that the chromosomes cannot be normally distributed to daughter cells, resulting in abnormal cell division, thereby inhibiting the growth and reproduction of the pathogen, and has a preventive and therapeutic effect on various fungal diseases of pear trees such as ring rot.

[0058] Triadimefon and thiophanate-methyl can effectively control ring rot, black spot, brown spot, anthracnose and pear rust. Bifenthrin, imidacloprid and avermectin can effectively control pear aphids, pear gall midges, pear psyllids, scale insects and longhorn beetles.

[0059] In the above embodiment, during summer and autumn, the pear trees in the orchard are sprayed with pesticides regularly, including difenoconazole, diniconazole, flusilazole, myclobutanil, Bordeaux mixture, acetamiprid, imidacloprid, emamectin benzoate, high-efficiency cypermethrin, deltamethrin, avermectin, and etoxazole.

[0060] In May, during the summer shoot growth period of pear trees, spray 1500 times of 3% acetamiprid EC, 2000 times of 2% avermectin EC, and 3000 times of 20% difenoconazole WP in early May. Difenoconazole WP can inhibit the biosynthesis of ergosterol in pathogenic bacteria, which is an important component of fungal cell membrane. When the agent inhibits the synthesis of ergosterol, the structure and function of the fungal cell membrane are destroyed, and the intracellular substances leak, leading to the death of pathogens. It can effectively prevent and control fungal diseases such as black spot and powdery mildew of pear trees.

[0061] In mid-May, spray 10% imidacloprid wettable powder 2000 times and 12.5% ​​diniconazole wettable powder 2000 times. Diniconazole wettable powder mainly inhibits the synthesis of ergosterol in fungi, destroys the fungal cell membrane, and affects its growth and reproduction. It can effectively prevent and control fungal diseases such as rust and powdery mildew of pear trees, play a role in the pathogen cells, and interfere with their metabolic process.

[0062] In late May, spray 2000 times of 2% emamectin benzoate + 5000 times of 40% flusilazole EC. Emamectin benzoate can cause the pest's nerve cell function to lose function, causing the pest to paralyze, refuse to eat, and eventually die; it mainly acts on the pest's neuromuscular junction, affecting the transmission of nerve signals, and has a good control effect on lepidopteran pests (such as small borer). Flusilazole mainly inhibits the synthesis of ergosterol in fungi, thereby destroying the integrity of fungal cell membranes, causing intracellular substances to extravasate, and ultimately leading to the death of pathogens; it has a significant control effect on fungal diseases such as black spot disease of pear trees, and can penetrate deep into the pear tree tissue to exert a bactericidal effect.

[0063] Difenoconazole, diniconazole, and flusilazole can effectively control ring rot, black spot, brown spot, and anthrax. Acetamiprid, avermectin, imidacloprid, and emamectin benzoate can effectively control pear aphids, pear gall midges, pear psyllids, and small borer. Improve the efficiency of pest control.

[0064] In June, during the summer shoot growth period, fruit growth period, and flower bud differentiation period of pear trees, spray 4.5% highly effective cypermethrin EC at 1500 times and 12.5% ​​myclobutanil EC at 1500 times in early June. Highly effective cypermethrin acts on the nervous system of pests, interferes with the sodium ion channels of nerve cells, blocks nerve conduction, causes excitement and spasms in pests, and eventually paralysis and death; it can prevent and control aphids, small borers and other pests of pear trees.

[0065] In late June, spray 2.5% deltamethrin 1500 times, 30% etoxazole suspension 4000 times, and mancozeb 600 times. Deltamethrin acts on the nervous system of pests, disrupting their nerve conduction, causing them to become excited, twitch, and eventually die. It has a good control effect on a variety of pests on pear trees, such as lepidopteran pests and aphids. Ethoxazole mainly inhibits the hatching of mite eggs and the development of young and nymph mites, and achieves the purpose of control by interfering with the molting process of mites. It has a good control effect on spider mites and other mite pests on pear trees, making it impossible for mites to reproduce and grow normally. After spraying mancozeb, a dense drug film that is breathable, water-permeable, and light-transmitting is formed on the leaves and fruits of crops. It is resistant to rain erosion and can prevent the germination and invasion of pathogens. It mainly prevents pathogen spores from contacting pear tree tissues through physical isolation, and has a preventive effect on fungal diseases such as anthracnose and early blight of pear trees.

[0066] Myclobutanil and mancozeb can effectively prevent and control ring rot, black spot, brown spot and anthracnose. High-efficiency cypermethrin, deltamethrin and etoxazole can effectively prevent and control red spider mites, pear gall midges, pear psyllids and small borer.

[0067] In July, when the fruits mature, spray 2.5% highly effective cyhalothrin EC at 2,000 times and 40% flusilazole EC at 5,000 times in the first ten days of the month; spray 1:2:250 Bordeaux mixture once in the second ten days of the month. Flusilazole and Bordeaux mixture can effectively prevent and control ring rot, black spot, brown spot and anthracnose. Highly effective cyhalothrin can effectively prevent and control small borer.

[0068] In August, during the flower bud differentiation period, spray 1:2:250 Bordeaux mixture once in early August, and spray 2.5% cypermethrin 1500 times and 12.5% ​​diniconazole WP 2000 times in late August. Bordeaux mixture and diniconazole can effectively prevent and control ring rot, black spot, brown spot and anthracnose. Deltamethrin can effectively prevent and control pear bugs.

[0069] In September, during the growth period of autumn shoots, spray 1:2:250 Bordeaux liquid once in early September. Bordeaux liquid can effectively prevent and control ring rot, black spot, brown spot, anthracnose, and improve the efficiency of disease prevention and control.

[0070] In the above embodiment, in the pre-winter period, the pear trees in the orchard are regularly sprayed with pesticides including lime sulfur, cintamanilide, Bordeaux mixture, mineral oil, thiamethoxam, spirotetramat and chlorfenapyr.

[0071] Lime sulfur can effectively prevent and control a variety of pear tree diseases and pests, such as pear black spot disease, anthracnose and other pathogens, as well as the eggs and larvae of pests such as red spider mites and scale insects, reduce the overwintering base of diseases and pests, and reduce the possibility of diseases and pests occurring in the following year; lime sulfur can also enhance the tree's resistance to cold: the sulfur and other substances in the lime sulfur form a protective film on the surface of the trunk, which helps reduce water evaporation from the tree, enhance the pear tree's resistance to cold, and reduce the damage to the pear tree caused by low temperatures in winter.

[0072] Succinil can effectively kill a variety of pathogens, such as pear rot and ring rot, preventing the pathogens from lurking on the tree in winter and preventing the pathogens from multiplying in large numbers when the temperature rises in the spring of the following year, causing pear tree diseases. Succinil can also promote wound healing. For the wounds left after pruning pear trees, Succinil can play a role in sterilization and disinfection, preventing the wounds from being infected with pathogens, promoting wound healing, and enhancing tree vigor.

[0073] Bordeaux liquid has a good preventive effect on leaf diseases such as black spot and black spot of pear trees. After spraying Bordeaux liquid before winter, it forms a protective film on the surface of pear tree leaves and branches, which can effectively prevent the invasion and spread of pathogens and reduce the incidence of diseases. The active ingredients of Bordeaux liquid can remain active on the surface of the tree for a long time and continue to play a bactericidal role, providing long-term protection for pear trees and reducing the damage of winter pathogens to pear trees.

[0074] Mineral oil can form an oil film on the leaves, branches and fruit surfaces of pear trees. When pests (such as mites, scale insects, etc.) and pathogens come into contact with this oil film, they will be physically sealed off, suffocating the pests to death, while also preventing the spores of pathogens from germinating and invading. For example, for red spiders on pear trees, mineral oil will cover their body surface, making it unable to breathe normally.

[0075] Thiamethoxam mainly acts on the nicotinic acetylcholine receptors (nAChR) of the insect nervous system. It can specifically bind to the nAChR on the pest's nerve cells and compete with the natural neurotransmitter acetylcholine for receptor sites. Once bound, it will cause the receptor channel to remain open or abnormally closed, causing a disorder in the transmission of nerve signals, thereby causing paralysis and death of the pest. On pear trees, for piercing-sucking pests such as aphids and pear psyllids, when the pests suck the pear tree sap containing thiamethoxam, the drug will enter the pest's body and take effect. Thiamethoxam can also be absorbed by the roots of the pear tree and conducted upward in the plant body, distributed to various tissues and organs. This makes the pear tree carry the drug ingredients all over the body, and even if the pests feed in a part that is not directly exposed to the spray of the drug, they will ingest thiamethoxam and be poisoned.

[0076] Spirotetramat inhibits the activity of acetyl-CoA carboxylase (ACCase) in the body of the pest. ACCase is a key enzyme in the fatty acid synthesis process in the pest body and is essential for the lipid synthesis of insects. When ACCase is inhibited, the pest cannot synthesize lipids normally, which affects its growth, development and reproduction. For example, for scale insects and aphids on pear trees, the agent will prevent them from forming new exoskeletons or affect the development of their eggs; spirotetramat has good systemic properties. It can be absorbed by the leaves of the pear tree and then transmitted in both directions in the plant body, both upward to the new shoots and tender leaves, and downward to the roots. In this way, pests hidden on the back of pear leaves, in the cracks of the bark, etc. can be effectively prevented and controlled, so that the entire pear tree can be protected.

[0077] The target of chlorfenapyr is the mitochondria in the cells of pests. It can interfere with the oxidative phosphorylation process of mitochondria, making it impossible for cells to produce adenosine triphosphate (ATP) normally. ATP is the energy "currency" of cells. Without enough ATP, the cell functions of pests will be disordered and various physiological activities cannot be carried out normally. For example, for lepidopteran pests (such as small borers) and mites on pear trees, chlorfenapyr will make their muscle cells unable to contract normally and nerve cells unable to conduct signals normally, eventually leading to the death of pests. When pests come into contact with chlorfenapyr, the agent can enter the body through the body wall of the pest to exert its effect (contact killing). At the same time, if the pests swallow the pear tree tissue containing chlorfenapyr, the agent will also exert toxicity in the digestive system of the pests (stomach poison). The dual action mechanism effectively improves the effect of pest control.

[0078] like Figures 2 to 4 As shown, an insect repellent device includes an insect trap lamp 1 and an ultrasonic generator 2, and also includes a first bracket 3 and a second bracket 4. The first bracket 3 and the second bracket 4 are detachably arranged in an orchard or at the edge of an orchard, and the upper end of the first bracket 3 is fixedly connected to the upper end of the second bracket 4 by a connecting belt 5; the upper end of the insect trap lamp 1 is sleeved on the connecting belt 5, and the insect trap lamp 1 can move along the connecting belt 5; the ultrasonic generator 2 is detachably placed at the lower end of the insect trap lamp 1.

[0079] In this embodiment, the first bracket 3 and the second bracket 4 are detachably arranged in the orchard or at the edge of the orchard, and the insect trap lamp 1 and the ultrasonic generator 2 can also be controlled to move as needed. When there is a similar pear orchard on one side of the orchard, the insect trap lamp 1 can be controlled to move close to the pear orchard, and the insect trap lamp 1 can be used to lure and kill pests transferred between orchards, thereby reducing the transfer and spread of pests, thereby improving the insecticide efficiency;

[0080] When spraying pesticides in an orchard, the insect-attracting lamp 1 and the ultrasonic generator 2 are controlled to move so that they are close to the pesticide spraying area. The ultrasonic generator 2 is used to emit ultrasonic waves to the pesticide spraying area, so that the pests are disturbed by the ultrasonic waves and move away. The pests are more likely to come into contact with the pesticides during the movement, thereby improving the insecticidal efficiency. The ultrasonic generator 2 can also be controlled to move according to the movement of the pesticide spraying area, thereby improving the insecticidal efficiency and making disease and insect control more efficient.

[0081] In this embodiment, an insect-attracting lamp 1 is used to construct an insect-isolating zone at the edge of an orchard, so that pests transferred into or out of the orchard can be lured and killed, especially within a period of time after spraying pesticides, so that luring and killing pests is more efficient; an ultrasonic generator 2 is used in conjunction with spraying pesticides to stimulate hidden pests to migrate, so that the migrated pests can come into contact with the pesticides, and pest control is more efficient.

[0082] In the above embodiment, a rotating shaft 6 is provided at the upper end of the first bracket 3, and both ends of the rotating shaft 6 are rotatably connected to the first bracket 3 through bearings; a motor 7 is fixedly provided at the upper end of the first bracket 3 corresponding to one end of the rotating shaft 6, and the output end of the motor 7 is connected to the rotating shaft 6; the rotating shaft 6 is connected to the top of the insect attractant lamp 1 through a pull rope 8.

[0083] In specific application, a vertically arranged connecting rod is fixedly provided at the upper end of the insect trap lamp 1, and the rotating shaft 6 is connected to the connecting rod through a pull rope 8; the output end of the motor 7 drives the rotating shaft 6 to rotate counterclockwise, and the pull rope 8 is continuously wound around the rotating shaft 6 during the rotation of the rotating shaft 6, thereby pulling the insect trap lamp 1 to move toward the first bracket 3; when the insect trap lamp 1 needs to move toward the second bracket 4, the output end of the motor 7 drives the rotating shaft 6 to rotate clockwise, and the pull rope 8 is loosened during the rotation of the rotating shaft 6, and the insect trap lamp 1 moves along the connecting belt 5 to the second bracket 4 under the action of gravity, thereby realizing the control of the insect trap lamp 1 to move;

[0084] In this embodiment, the moving position of the insect trap lamp 1 can be adjusted by the motor 7, the rotating shaft 6 and the pull rope 8, so that the insect trap lamp 1 can be conveniently controlled to move to a set position.

[0085] In the above embodiment, both the first bracket 3 and the second bracket 4 are telescopic brackets with adjustable heights, and the adjusted top horizontal height of the first bracket 3 is higher than the top of the second bracket 4 .

[0086] By adjusting the height of the first bracket 3 and the second bracket 4 so that the top horizontal height of the first bracket 3 is higher than the top of the second bracket 4, when the insect trap 1 needs to be moved toward the second bracket 4, the pull rope 8 is loosened during the rotation of the shaft 6, so that the insect trap 1 moves toward the second bracket 4 along the connecting belt 5 under the action of gravity, thereby realizing the control of the movement of the insect trap 1 and improving convenience.

[0087] In the above embodiment, a controller 9 is fixedly provided at the lower end of the motor 7, and a signal end of the controller 9 is connected to a signal end of the motor 7; the signal end of the controller 9 is also wirelessly connected to a movable control terminal.

[0088] In specific applications, the control terminal is used to send a control signal to the controller 9, and the controller 9 controls the motor 7 to operate according to the control signal. The motor 7 rotates clockwise or counterclockwise, which is convenient for controlling the movement of the insect attractant lamp 1 and the ultrasonic generator 2. In the process of drone spraying of pesticides in the orchard, the ultrasonic generator 2 emits ultrasonic waves to the orchard to reduce the impact of ultrasonic waves on operators.

[0089] In the above embodiment, a solar panel 10 is fixedly provided at the upper end of the insect attractant lamp 1, and a detachable battery is placed at the lower end of the insect attractant lamp 1, the solar panel 10 is electrically connected to the battery, and the battery is electrically connected to the insect attractant lamp 1.

[0090] In specific applications, the battery can be taken out from the side wall of the lower end of the insect attractant lamp 1, which is convenient for replacing the battery; the battery is electrically connected to the insect attractant lamp 1 and the ultrasonic generator 2 respectively; the solar panel 10 can convert solar energy into electrical energy, and transmit the electrical energy to the battery for storage, and the battery then supplies power to the insect attractant lamp 1 and the ultrasonic generator 2; the battery can also be taken out for manual charging when the solar panel 10 is insufficiently powered, to ensure the efficient operation of the insect attractant lamp 1 and the ultrasonic generator 2.

[0091] In the above embodiment, the insect-attracting lamp 1 includes a lamp holder 101 and a lamp body 102. The upper end of the lamp holder 101 is provided with a through hole, and the lamp holder 101 is mounted on the connecting belt 5 through the through hole; the lamp body 102 is fixedly placed in the lamp holder 101, and the outer periphery of the lamp body 102 is fixedly provided with a power grid 103 surrounding the lamp body 102; a motor is fixedly provided in the lower end of the lamp holder 101, and a rotatable tool 104 is provided in the lamp holder 101 corresponding to the lower part of the lamp body 102, and the tool 104 is connected to the output end of the motor.

[0092] In specific applications, the battery is electrically connected to the lamp body 102, the power grid 103 and the motor respectively, and the light of the lamp body 102 is used to lure pests, so that the pests approach the lamp body 102. When the pests approach the lamp body 102, they touch the power grid 103, and the power grid 103 electrocutes the pests, causing the pests to die. After the pests die, they fall to the cutter 104, and the motor drives the cutter 104 to rotate. During the rotation of the cutter 104, the pests are cut. Even if the pests are not electrocuted, the cutter 104 can be used to kill them, thereby improving the efficiency of attracting and killing insects.

[0093] This embodiment uses the electric grid 103 and the cutter 104 to kill the insects twice, which can effectively improve the insect killing efficiency. The cutter 104 can also throw out the killed pests during the rotation process to avoid the accumulation of pests in the lamp holder 101, so that the electric grid 103 and the cutter 104 can maintain efficient operation and reduce the frequency of cleaning the lamp holder 101.

[0094] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for controlling diseases and insect pests in pear trees, characterized in that: The following steps are involved: In early spring, insect trap lamps (1) are arranged at a set distance at the edge of the orchard and in the orchard, so that the insect trap lamps (1) move along the edge of the orchard to trap and kill pests entering from outside the orchard; pesticides are sprayed on pear trees in the orchard regularly, and an ultrasonic generator (2) is started at the same time to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed; In summer and autumn, the insect trap lamp (1) is activated to move along the edge of the orchard to trap and kill the pests that have moved out of the orchard; the pear trees in the orchard are sprayed with pesticides regularly, and the ultrasonic generator (2) is activated to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed; In the pre-winter period, the insect trap lamp (1) is started to move along the edge of the orchard to trap and kill pests entering from outside the orchard; pesticides are sprayed on the pear trees in the orchard regularly, and the ultrasonic generator (2) is started at the same time to emit ultrasonic waves to the area in the orchard where the pesticides are being sprayed and the edge of the orchard.

2. The method for controlling diseases and insect pests in pear trees according to claim 1, characterized in that: In early spring, the pear trees in the orchard are sprayed with pesticides regularly, including lime sulfur, triadimefon, thiophanate-methyl, highly effective cypermethrin, bifenthrin, imidacloprid, and avermectin.

3. The method for controlling diseases and insect pests in pear trees according to claim 1, characterized in that: In summer and autumn, pear trees in the orchard are sprayed with pesticides regularly. The pesticides include difenoconazole, diniconazole, flusilazole, myclobutanil, mancozeb, Bordeaux mixture, acetamiprid, imidacloprid, emamectin benzoate, high-efficiency cypermethrin, deltamethrin, avermectin, and etoxazole.

4. The method for controlling diseases and insect pests in pear trees according to claim 1, characterized in that: In the pre-winter period, the pear trees in the orchard are sprayed with pesticides regularly, including lime sulfur, cypermethrin, Bordeaux mixture, mineral oil, thiamethoxam, spirotetramat, and chlorfenapyr.

5. An insect repellent device, characterized in that: The insect attractant lamp (1) and the ultrasonic generator (2) as claimed in claim 1 also include a first bracket (3) and a second bracket (4), wherein the first bracket (3) and the second bracket (4) are detachably arranged in an orchard or at the edge of an orchard, and the upper end of the first bracket (3) is fixedly connected to the upper end of the second bracket (4) by a connecting belt (5); the upper end of the insect attractant lamp (1) is mounted on the connecting belt (5), and the insect attractant lamp (1) can move along the connecting belt (5); and the ultrasonic generator (2) is detachably placed at the lower end of the insect attractant lamp (1).

6. The insect repellent device according to claim 5, characterized in that: A rotating shaft (6) is arranged at the upper end of the first bracket (3), and both ends of the rotating shaft (6) are rotatably connected to the first bracket (3) via bearings; a motor (7) is fixedly arranged at the upper end of the first bracket (3) corresponding to one end of the rotating shaft (6), and the output end of the motor (7) is connected to the rotating shaft (6); the rotating shaft (6) is connected to the top of the insect attractant lamp (1) via a pull rope (8).

7. The insect repellent device according to claim 6, characterized in that: The first bracket (3) and the second bracket (4) are both telescopic brackets with adjustable heights, and the adjusted top horizontal height of the first bracket (3) is higher than the top of the second bracket (4).

8. The insect repellent device according to claim 6, characterized in that: A controller (9) is fixedly arranged at the lower end of the motor (7), and a signal end of the controller (9) is connected to a signal end of the motor (7); the signal end of the controller (9) is also wirelessly connected to a movable control terminal.

9. The insect repellent device according to claim 5, characterized in that: A solar panel (10) is fixedly provided at the upper end of the insect attractant lamp (1), and a detachable storage battery is disposed at the lower end of the insect attractant lamp (1); the solar panel (10) is electrically connected to the storage battery, and the storage battery is electrically connected to the insect attractant lamp (1).

10. The insect repellent device according to claim 5, characterized in that: The insect attractant lamp (1) comprises a lamp holder (101) and a lamp body (102); the upper end of the lamp holder (101) is provided with a through hole, and the lamp holder (101) is sleeved on the connecting belt (5) through the through hole; the lamp body (102) is fixedly placed in the lamp holder (101), and an electric grid (103) surrounding the lamp body (102) is fixedly provided on the outer periphery of the lamp body (102); a motor is fixedly provided in the lower end of the lamp holder (101), and the electric grid (103) surrounding the lamp body (102) is fixedly provided. A rotatable cutter (104) is provided in the lamp holder (101) below the lamp body (102). The tool (104) is connected to the output end of the motor.

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