181 results about "Fumigation" patented technology

The invention discloses a myrosinase-producing Cupriavidus strain and application of the myrosinase-producing Cupriavidus strain in prevention and treatment of soil-borne diseases. The preservation number of the Cupriavidus sp. Strain is CGMCC (China General Microbiological Culture Collection Center) NO.34736. The Cupriavidus sp. Strain is a Cupriavidus sp. Strain. The invention further provides application of the strain in prevention and treatment of soil-borne fungal diseases and a soil disinfection method. According to the soil disinfection method provided by the invention, the amount of isothiocyanate substances generated in a biological fumigation technology is greatly increased, and a remarkable inhibition effect on soil-borne pathogens can be achieved.

The invention relates to the technical field of automatic control, in particular to an intelligent circulation fumigating machine control system, which is characterized by comprising a main control unit, a system central processing unit and a control unit, the temperature sensor is used for monitoring the temperature in the fumigation environment to ensure that the fumigant plays a role at the optimal temperature; the humidity sensor is used for detecting the air humidity and adjusting the fumigation environment humidity in real time; the concentration sensor monitors the concentration of the fumigant, prevents the concentration from being too high or too low, and guarantees the fumigation effect; the fumigant spraying module comprises a spraying system with an adjusting function, and the spraying speed and the spraying amount are automatically adjusted according to feedback of the concentration sensor. Intelligent control: the system realizes accurate regulation and control of the fumigation process by controlling the concentration, temperature and airflow path of the fumigant, ensures uniform distribution and no dead angle, and improves the fumigation effect.

The invention provides a regulation and control method for prolonging the refreshing time of prunes, which comprises the following steps: disinfecting a phase-temperature fresh-keeping storehouse for 24 hours by using absolute ethyl alcohol, and ventilating for 8-10 hours to ensure a sterile environment. During harvesting, prunes which are free of plant diseases and insect pests, free of mechanical damage, complete in fruit cream and larger than or equal to 20% in sugar content are selected, and the temperature of the prunes is rapidly reduced to 2-2.2 DEG C within 10 h through portable differential pressure precooling equipment. After precooling, a methyl jasmonate aqueous solution is adopted for electrostatic atomization spraying, and 1-methylcyclopropene is used for airtight fumigation for 18-20 h to inhibit ethylene generation and respiration. And then, storing in a phase temperature warehouse at the temperature of-1.5 to-1.2 DEG C, controlling the relative humidity to be 85-87%, and carrying out intermittent nano atomization sterilization by using a hydrogen peroxide aqueous solution once every 15-18 days. According to the method, the fresh-keeping effect of the prunes is comprehensively improved, the safety and the quality of the fruits are ensured, and the fresh-keeping period is remarkably prolonged.

The present disclosure provides a non-toxic fumigation method using ozone and carbon dioxide, comprising the steps of placing a pest control object into the fumigation chamber. After the fumigation chamber is closed, the chamber is vacuumed to 0.2 bar-0.9 bar and maintained at this lower pressure for a first period of time. Ozone at a concentration ranging from 40 ppm to 160 ppm is introduced into the fumigation chamber until the pressure reaches 1.0-1.7 bar, and fumigation is carried out for 3-20 minutes. The chamber is vacuumed again to 0.2-0.9 bar, maintaining this low pressure for a second period of time. High-concentration carbon dioxide is then introduced into the fumigation chamber until the pressure reaches 1.0-1.7 bar, and fumigation is performed for 10-30 minutes. After completing the pest control process, the chamber is restored to atmospheric pressure, and the tested objects are removed.

The invention relates to the field of silkworm breeding, in particular to a composite disinfection method suitable for a silkworm house and a silkworm rearing instrument. The composite disinfection method comprises the following steps: S1, carrying out physical and chemical combined preliminary disinfection; S11, cleaning and airing a movable instrument, and cleaning and disinfecting the silkworm house by using ultraviolet rays; s12, disinfecting the movable appliance and the silkworm house by using a chemical agent; s2, deep disinfection is conducted, specifically, a cinnamyl aldehyde and potassium permanganate mixed solution is taken to disinfect a silkworm house, then sulfur powder is used for fumigation disinfection, exhaust is conducted till no pungent smell is left, and the cinnamyl aldehyde and potassium permanganate mixed solution is prepared from cinnamyl aldehyde, water and potassium permanganate according to the volume ratio of 3-4: 5: 1-2; s3, disinfection before the silkworm period. Compared with the prior art, the disinfection method has the advantages that after the silkworm room and the silkworm rearing instrument are disinfected, few sedimentation bacteria are detected on the silkworm room and the silkworm rearing instrument, nuclear polyhedrosis viruses are not detected in silkworm bodies, the silkworm death rate is reduced to 0.3-1.1% and is far lower than that of other disinfection methods when the silkworm room or the silkworm rearing instrument is used for trial breeding of silkworm eggs, and the effect is extremely good.

The utility model is applicable to the technical field of forest planting, and discloses a forest plant disease and insect pest fumigation box convenient to install, a first fixing ring is arranged at the middle end of the side edge of a box body, a second fixing ring is movably installed on the side edge of the first fixing ring, and installation plates are fixedly installed on the surfaces of the two ends of the outer side of the first fixing ring. A fixing arc plate is fixedly mounted on the side edge of the mounting plate, inserting frames are fixedly mounted on the surfaces of the two ends of the outer side of the second fixing ring, limiting mechanisms are arranged in each inserting frame and the corresponding fixing arc plate, a transmission frame is fixedly mounted on the surface of the outer side of each inserting frame, and a pushing mechanism is arranged in each transmission frame. And the pushing mechanism is in transmission connection with the limiting mechanism. According to the technical scheme, the first fixing ring and the second fixing ring can be quickly and conveniently disassembled, assembled and adjusted, the operation steps of disassembling, assembling and replacing the box body by an operator are reduced, and then the replacing efficiency of the fumigation box body is improved.

The utility model relates to the technical field of agricultural planting, in particular to an agricultural planting insect pest repelling device which comprises a box body and a fumigation mechanism, the fumigation mechanism comprises a cover, four fixing rods, a supporting plate, a fumigator and a blowing assembly, the cover is connected with the box body in a sliding mode and located above the box body, the supporting plate is arranged in the box body, and the fumigator is arranged in the box body. One ends of the four fixing rods are connected with the box body in a clamped mode, the other ends of the four fixing rods extend into the box body to be fixedly connected with the supporting plate and are evenly arranged on the outer side of the supporting plate, the fumigator is arranged above the supporting plate, and the blowing assembly is arranged below the supporting plate. And medicines are inconvenient to add or install.

The invention discloses a grain storage barn fumigation pipeline system which comprises a grain storage barn, a circulation fumigation pipeline assembly, an air adjusting valve assembly, a circulation fan and an aluminum phosphide medicine feeding mechanism, the circulation fumigation pipeline assembly is installed on the outer wall of the grain storage barn, and ventilation ground cage openings are symmetrically formed in the lower portion of the circulation fumigation pipeline assembly; the air adjusting valve assembly and the circulation fan are both connected with the circulation fumigation pipeline assembly, the aluminum phosphide medicine feeding mechanism comprises a containing barrel and a medicine feeding assembly used for evenly feeding aluminum phosphide tablets, and the medicine feeding assembly is rotationally arranged in an inner cavity of the containing barrel and comprises a rotating disc and an aluminum phosphide containing assembly used for containing the aluminum phosphide tablets. The circulating fumigation pipeline assembly is matched with the air adjusting valve assembly, the circulating fan and the aluminum phosphide medicine feeding mechanism, and effective phosphine circulating fumigation insecticidal treatment can be carried out on grains in the grain storage bin.

The invention relates to the technical field of pesticide spraying devices, and provides an adjustable forestry pest control pesticide spraying device which comprises a cart, a fixing ring is fixedly arranged on the cart, a pesticide storage tank is fixedly connected into the fixing ring, and the pesticide storage tank is used for storing pesticide substitutes. A first connecting pipe, a second connecting pipe and a third connecting pipe are arranged on the pesticide storage tank in a communicating mode, a powder pump is installed on the second connecting pipe, a first connecting cylinder is arranged above the powder pump, a pesticide spraying assembly is installed on the first connecting cylinder, a pressing rod is installed on the pesticide spraying assembly, and a protruding plate is fixedly connected to the third connecting pipe. A first spring is fixedly arranged on the protruding plate, and a second connecting cylinder is slidably mounted in the third connecting pipe. By means of the technical scheme, the problems that according to an existing medicine spraying device, the medicine spraying range of the device cannot be automatically enlarged when the requirement for the medicine spraying amount is increased, and lateral fumigation cannot be conducted through medicine spraying through holes are solved.

The utility model discloses wood product heat treatment fumigation equipment, and relates to the technical field of wood product treatment. The wood product heat treatment fumigating equipment comprises a fumigating box and an exhaust pipe fixedly arranged on the top face of the fumigating box in a penetrating mode and extending into the fumigating box, and a fumigating mechanism and a control mechanism are arranged on the inner side of the fumigating box; the control mechanism is located on the outer wall of the fumigating mechanism; the fumigation mechanism comprises a placing part and a fumigation part; the placing part comprises a placing frame and a plurality of placing plates, and the fumigating part comprises an air inlet pipe and a turbine; the fumigation device has the technical effects that the steam inlet pipe in the fumigation mechanism introduces steam into the fixed frame and drives the turbine to rotate to enable the rotating box to rotate, the rotating box exhausts the steam through a plurality of steam outlet pipes, the steam spraying range is enlarged, the steam spraying effect is improved, and the steam spraying effect is improved. All parts of the wooden product are fully fumigated, the fumigating effect is improved, the wooden product quality is guaranteed, and the insect attack risk is reduced.

The utility model discloses a phosphine gas generating system. According to the technical scheme, the device comprises a material storage module, a material distribution module, a generation module, a processing module, a measurement and control module and a rack box body. According to the scheme provided by the utility model, the stored grain fumigation insect killing can be more effectively realized, the safety risk of dosing by personnel is completely avoided, the labor intensity is reduced, the workload is reduced, and the medicine can be stored for a long time as long as being placed in the bin once and can be released for multiple times according to the fumigation requirement; the generation opportunity and the dosage of the phosphine can be selected timely and reasonably, and the drug release concentration can be regulated and controlled according to actual conditions, so that the effective optimal CT value of the pest lethal concentration is achieved, and the dosage is reduced to the greatest extent; fumigating residues are subjected to innocent treatment, and residual gas is sent back to a grain pile, so that zero emission of poison gas is realized, the pesticide effect is fully utilized, and the environmental pollution is reduced; the whole fumigation operation and the circulation process are all carried out under the inner film of the granary pile, so that poison gas leakage is avoided, and grains are better protected.

The utility model relates to the technical field of seed fumigation, in particular to a roadway circulation fumigation system suitable for a seed stack, which comprises a layer-changing transfer device, a circulation fumigation device, a tail gas treatment device, a mechanical ventilation device and at least one group of roadways, the layer-changing transfer device is used for conveying the seed stacks into the roadway; the circulation fumigation device is communicated with each roadway and is used for introducing a fumigant into each roadway for seed fumigation; the tail gas treatment device is communicated with the circulation fumigation device and is used for purifying and discharging tail gas generated in each roadway; and the mechanical ventilation device is communicated with the circulation fumigation device and is used for ventilating each roadway. The seed fumigating device can shorten the fumigating time, save the production cost, ensure that the concentration of the fumigant in the roadway is uniform and the fumigant is in full contact with the seeds, improve the utilization rate of the fumigant and improve the seed fumigating quality.

The utility model is applicable to the technical field of soil fumigation, and provides a soil fumigation device with a soil turning function, which comprises a bottom plate with a rectangular opening; the frame is fixedly arranged on the bottom plate and is provided with an L-shaped plate; the supporting pad is arranged at the top of the frame; the gas storage bottle is arranged on the supporting pad and is used for storing a chemical gas fumigant; the lifting mechanism is arranged on the frame and used for controlling the soil turning mechanisms to ascend and descend; the plurality of soil turning mechanisms are arranged on the lifting mechanism, and the plurality of soil turning mechanisms are used for turning soil for multiple times. According to the soil fumigating device with the soil turning function, provided by the scheme, not only can the soil be subjected to chemical fumigating, but also the soil can be turned over for multiple times in the fumigating process, so that a fumigant can be uniformly mixed with the soil, and the fumigating effect of the soil is improved.

The utility model relates to the technical field of grain storage and discloses a grain storage circulation fumigation device which comprises a storage bin body and a mounting frame, the mounting frame is fixedly connected to the top of the storage bin body, one end of the mounting frame is fixedly connected to one side wall of the storage bin body, and the other end of the mounting frame is fixedly connected to the other side wall of the storage bin body. The storage bin main body is provided with a medicine applying part for circulating fumigation, the bottom of an inner cavity of the storage bin main body is rotatably connected with a plurality of groups of rotating rods, the outer side walls of the rotating rods are fixedly connected with spiral blades, and the top ends of the rotating rods penetrate through the top of the inner cavity of the storage bin main body and are fixedly connected with worm wheels; a rotating shaft is rotationally connected between the inner side walls of the storage bin body, a shifting piece is fixedly connected to the outer side wall of the rotating shaft, a fixing frame is fixedly connected to the top of an inner cavity of the storage bin body, and a reciprocating lead screw is rotationally connected to an inner cavity of the fixing frame. According to the scheme, the permeation effect of fumigation gas can be improved, and the insect prevention effect of the circulation fumigation device is improved.

The utility model discloses a granary multi-parameter intelligent monitoring control device, which relates to the granary monitoring technology field, and comprises a granary, a control box and an installation platform, the control box is internally provided with a fumigation adjusting assembly, the situation in the control box can be monitored in real time through an arranged monitor, and an arranged sensor transmits signals to a control unit. A valve is opened, a fumigant in a lifting storage tank is conveyed into a buffer pipeline through a fumigation conveying pipeline, a conveying bent pipe and a connecting pipeline, the arranged buffer pipeline can buffer and store the fumigant, and a plurality of spray heads spray the fumigant to fumigate and kill pests in a control box. The arranged arc-shaped fixing frame plays a role in supporting the buffer pipeline, the arranged protective net plate can play a role in protecting the multiple spraying agent heads, pests are prevented from entering the spraying agent heads to block spraying agent openings, and the arranged limiting buckle can play a role in limiting and fixing connection of the fumigation conveying pipeline and the protective box.

The invention discloses a bee breeding box, and relates to the technical field of bee breeding, the bee breeding box comprises a box body, two supporting plates arranged on the inner walls of the two sides of the box body respectively, frames arranged between the two supporting plates, and bee inlets and outlets formed in the side walls of the box body, and the upper plate surfaces of the supporting plates are provided with accommodating grooves matched with the frames; the two jacking assemblies are arranged on the two supporting plates correspondingly; and the two lifting assemblies are arranged on the two sides of the box body correspondingly, and the two lifting assemblies are connected with the two jacking assemblies correspondingly. By means of the jacking structure, the frame can be taken and placed more conveniently, the labor intensity of operators is relieved, and the operation efficiency and safety of the frame are improved; the fumigation function is combined with the jacking structure, and after the frame is jacked up by the jacking assembly, fumigation smoke is in full contact with the frame and bees, the effect is uniform, and therefore the prevention and treatment effect is improved.

The invention relates to the field of broiler chicken breeding, in particular to a broiler chicken three-dimensional cage rearing method which comprises the following steps: S1, preparing for chicks, fumigating and disinfecting a chicken house with formaldehyde 5 days before chicks enter, ventilating after closing the chicken house for 24 hours, and cleaning a trough and a water fountain; cages are distributed in the henhouse in an array mode, a passage is reserved between every two rows of cages, an automatic drinking system, a feeding system, a manure cleaning system, a ventilation system, a temperature control system, an illumination system and a control system are installed in the henhouse in a matched mode, and photovoltaic panels are laid on the roof of the henhouse. S2, breeding in a brooding period, feeding chicks into a cage when the chicks are 0-3 weeks old, and feeding less than 20 chicks per square meter of cage bottom area; various sensor structures are additionally arranged, the internal environment of the henhouse is monitored, remote control over the internal environment of the henhouse is facilitated, the auxiliary fan is additionally arranged, ventilation is conducted on the middle layer of the cage, the vertical ventilation performance of the whole cage is better, the temperature and humidity of the whole cage are kept consistent with those of the internal environment of the henhouse, regulation and control over the environment of the henhouse are facilitated, and practicability is improved.

The invention discloses sinorhizium xinjiangense APXJHT24-1 which has the functions of promoting growth and inhibiting aspergillus flavus, and the preservation number of the sinorhizium xinjiangense APXJHT24-1 is CCTCC (China Center for Type Culture Collection) M 2026229. According to the invention, the integration of two major functions of'generation of a characteristic antibacterial volatile matter of dimethyl disulfide 'and'efficient symbiotic nitrogen fixation' on a single strain is realized in Sinkiang Sinkiang rhizobium for the first time. The dimethyl disulfide released by the strain can accurately down-regulate expression of toxin synthesis key genes and spore development core genes in the aspergillus flavus, so that efficient bacteriostasis is realized on the molecular level. Through one-time inoculation, the strain can synchronously achieve the dual purposes of growth promotion and nitrogen fixation and source bacteriostasis at the rhizosphere ecological niche of the peanuts. Especially aiming at the biological characteristics of overground flowering and underground fruiting of peanuts, a lasting biological fumigation protection layer can be formed in a soil microenvironment in a legume development critical period.

The invention discloses an antibacterial and mildew-proof structural slab for decoration bottoming and a manufacturing method of the antibacterial and mildew-proof structural slab, and belongs to the technical field of artificial board manufacturing. In order to solve the problem that an existing bottom-hitting plate is prone to mildewing when being tightly attached to a cement wall, the method comprises the following steps that surface layer wood shavings and core layer wood shavings are manufactured; spraying an antifungal organic mixed solution to the surface layer wood shavings, and spraying antibacterial plant extract mixed oil to the core layer wood shavings; paving, applying glue, and carrying out hot press molding; the plate blank is subjected to high-temperature and high-humidity antibacterial fumigation treatment firstly, and plant extraction fumigation water containing antibacterial plant extraction mixed oil is used for fumigation; and finally, the surface of the plate is preheated and roller-coated with an anti-mildew organic mixed solution, and a finished product is obtained after drying and curing. The structural slab prepared by the method forms a three-dimensional antibacterial and mildew-proof barrier from inside to outside, has excellent comprehensive properties of long-acting mildew resistance, high antibacterial rate, mildew-proof grade of 0 grade or I grade, formaldehyde emission of HENF grade and nearly zero odor, and is particularly suitable for bottoming of wall surfaces or floors in whole decoration and customization.

The application provides a Bacillus velezensis TCS001 volatile gas composition, which comprises 2-ethylhexanol, methyl nonyl methyl ketone, 2-decanol and 2-dodecanone, and the mass ratio of 2-ethylhexanol:methyl nonyl methyl ketone:2-decanol:2-dodecanone is 2-7:5-13:2-6:2-23. The Bacillus velezensis TCS001 volatile gas composition can be used as a safe and efficient gas-phase bacteriostatic material for the research and development of a novel fumigation preparation, is suitable for the prevention and treatment of diseases in a closed environment such as a greenhouse, a warehouse and the like, promotes crop growth, and has wide application value.

The application discloses a novel preparation for inhibiting botrytis cinerea and application thereof, and relates to the technical field of bacteriostatic drugs, and has the technical scheme as follows: the active ingredient of the preparation is composed of isoeugenol and bacillus velezensis fermentation liquor.The half bacteriostatic concentration EC50 value of the novel preparation reaches 59.7 ug / mL, and the bacteriostatic capacity is higher than that of the existing technology of bacto in the same concentration.Based on the influence on the membrane permeability of filamentous fungi, the application can synergistically inhibit the pathogenic activity of postharvest fungi of fruits, and is expected to be used for preparing a novel preparation for preventing and treating high-sugar fruits after harvesting.The application is simple to use, environment-friendly, can be directly smeared on the surface of fruits in the planting stage, can not be directly contacted with the fruits in the storage period, and can provide the bacteriostatic capacity for the storage period by using the fumigation mode.The application provides a new choice for the biological prevention of fruits, and has good economic benefits and social benefits.

The invention provides a method for reducing soil antibiotic resistance genes by utilizing myriophyllum verticillatum, and belongs to the technical field of environmental engineering.The method comprises the steps that land is prepared and leveled, weeds and residues are removed, the smashed myriophyllum verticillatum is scattered on the surface of the soil, the myriophyllum verticillatum is mixed with the soil, and the myriophyllum verticillatum and the soil are mixed to form a mixture; after uniform mixing, film covering is performed to ensure that the space is closed; performing fumigation operation for 10-18 days, and controlling the fumigation temperature at 30-40 DEG C; after fumigation is finished, all air outlets are opened, the film is uncovered for air dispersion, the content of ARGs and MGEs in greenhouse soil can be effectively reduced through the myriophyllum verticillatum, and meanwhile the effects of broad-spectrum prevention and control, no target property, no residual risk, remarkable yield increasing effect and the like are achieved; the method has important effects on solving the problem of soil continuous cropping, promoting crop growth, increasing the yield and solving the problem of pesticide residues.

The application discloses a fumigation method and device specially used for controlling Indian meal moth adult, adopts fumigation combining with SO2 and a special fumigation device to provide negative pressure, realizes low concentration and short time high efficiency fumigation, not only significantly improves the control efficiency on Indian meal moth larvae, but also realizes effective control on Indian meal moth eggs, pupae and adult, when the product of SO2 concentration and fumigation time is 10000, the pressure is 20kPa and the fumigation time is 20h, the mortality of Indian meal moth eggs, pupae, larvae and adult is 100%. The fumigation method provided by the application is simple, time and labor saving, the fumigation effect is good, the SO2 concentration is low, the quality of dry fruits is ensured, and the method has important practical significance for large-scale storage of dry fruits.

The application discloses a device and method for spraying S-ethofenprox in tobacco threshing and redrying online. The device comprises a dosing unit, a spraying unit and a controller. The controller is connected with an online production control system. The spraying unit is connected with a leaf moistening drum equipment. The dosing unit comprises a medicine tank and a medicine transmission pipeline. The medicine tank is used for storing S-ethofenprox medicine. The spraying unit is used for spraying S-ethofenprox medicine on tobacco in the leaf moistening drum equipment. One end of the medicine transmission pipeline is connected with the medicine tank. The other end of the medicine transmission pipeline extends into the leaf moistening drum equipment and is connected with the spraying unit. A pneumatic diaphragm regulating valve connected with the controller is arranged on the medicine transmission pipeline. The device and method for spraying S-ethofenprox in tobacco threshing and redrying online can spray biological medicine online in tobacco threshing and redrying, so that the purpose of preventing and controlling insect pests of tobacco is achieved. The fumigation and insect killing process in the later storage process of cut tobacco is reduced. The device and method not only save cost, but also reduce chemical pollution and residues.

The utility model discloses a grain and oil storage device which comprises a cabinet body, a driving motor and a stirring rod, a rice bin is arranged on the cabinet body, the stirring rod is vertically and rotatably arranged in the rice bin through the driving motor, a fumigation box communicated with the interior of the stirring rod is arranged on the stirring rod, and the fumigation box is connected with the driving motor. And a plurality of air outlet holes communicated with the fumigation box are formed in the rod body. According to the device, the defects that in the prior art, the device only cools to destroy the living environment of bacteria or rice worms and prolong the storage time of grains, but the bacteria and the rice worms possibly adopt hibernation and other modes to pass the time period, and the bacteria and the rice worms cannot be effectively removed are overcome. Therefore, the grain and oil storage device can effectively remove bacteria and rice worms.

The invention relates to the technical field of green prevention and control of stored grain pests, in particular to a nano-emulsion for preventing and controlling stored grain pests, namely panonychus rustinae, as well as a preparation method and application of the nano-emulsion. According to the preparation method of the nano-emulsion provided by the invention, the dispersing capacity and the stability of the garlic essential oil in water are improved through embedding of the natural tea saponin; meanwhile, a low-temperature ultrasonic emulsification technology is adopted, so that the activity loss of essential oil is effectively avoided. The preparation process is simple, the prepared nano-emulsion adopts the tea saponin and the garlic essential oil to achieve a synergistic effect, the control efficiency can be effectively improved, the contact killing rate of the nano-emulsion on prymaria rugosa is larger than or equal to 97%, and the fumigation death rate is larger than or equal to 98%. Meanwhile, the tea saponin and the plant essential oil are adopted as core components of the nano-emulsion, the components are natural, the environmental safety is high, and the risk that residues exceed the standard is avoided, so that an industrialized feasible solution can be provided for a green grain storage technology, and the nano-emulsion is particularly suitable for closed / semi-closed storage scenes such as grain storage warehouses, farm granaries and household granaries.

The invention provides application of geraniol in inhibition of egg laying and egg incubation of tea lesser leafhopper, and belongs to the technical field of pest control. Empoasca flavescens oviposition and egg incubation are inhibited by fumigating geraniol. The influence of geraniol with different concentrations on the egg laying amount and egg hatching rate of the tea lesser leafhoppers is researched, and the result shows that egg laying and egg hatching of the tea lesser leafhoppers can be remarkably inhibited by adopting geraniol with the concentration of 1%, 5% and 10% for fumigation treatment. The geraniol can effectively reduce the population growth rate of the tea lesser leafhopper, is expected to be prepared into a natural preparation for preventing and treating the tea lesser leafhopper, and has the advantages of safety, high efficiency and sustainability.

The invention relates to a plant color-retaining insect repelling and killing preparation for heating fumigation and a preparation method thereof, and relates to the technical field of insect repelling and killing preparations. The insect repelling and killing preparation for heating fumigation can solve the problem that the color and luster degree is reduced due to the fact that pigment components contained in natural plant materials or dyed natural plant materials are leached or oxidized in the long-term dipping process of the natural plant materials or the dyed natural plant materials by insect repelling and killing liquid due to long-term storage.

The present invention discloses a myrosinase-producing Cupria virescens strain and its application in preventing and controlling soil-borne diseases. Cupriavidus sp.) is deposited under CGMCC No. 34736. Further provided are uses of the strain for preventing and controlling soil-borne fungal diseases and methods for soil disinfection. The soil disinfection method provided by the present invention significantly increases the amount of isothiocyanates produced during biological fumigation technology and significantly inhibits soil-borne pathogens.

The application discloses application of natural unsaturated aliphatic aldehyde in prevention and treatment of plant parasitic nematodes. The natural unsaturated aliphatic aldehyde is trans, trans-2,4-heptadienal and trans-2-heptenal. The plant parasitic nematodes are root-knot nematodes, cyst nematodes and pine wood nematodes. Both the trans, trans-2,4-heptadienal and the trans-2-heptenal can exhibit excellent nematocidal activity through contact killing and fumigation, which provides a basis for development of green and environmentally-friendly nematocidal agents, and has a good application prospect for replacing traditional chemical nematocidal agents.