A method for green control of empoasca fabae

Abstract

The application discloses a method for green control of tea green leafhoppers, which comprises the following steps: extracting melon juice from melon cutting, disturbing the tea green leafhoppers to the air by artificial wind, and then spraying the melon juice to the air and tea trees, so that the flying or crawling tea green leafhoppers are adhered to the bodies and wings by the melon juice, the bodies and wings of the tea green leafhoppers are covered by the melon juice, the crawling and flying abilities of the tea green leafhoppers are lost when the water in the melon juice evaporates, and the tea green leafhoppers die, rot and decompose naturally, and the melon juice is also decomposed naturally, so that the purpose of the application is achieved. The method for green control of tea green leafhoppers provided by the application is rich in healing substance, the healing substance has strong viscosity and is easy to be naturally degraded in a short period of time, is green, pure natural, naturally degradable, free of any toxic side effects and residues, and free of agricultural residues, is beneficial to the protection of the environment and natural enemies, is harmless to human beings, livestock and crops, promotes the growth of crops, and has good ecological balance in tea gardens.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of green control of insects in tea garden, in particular to a method for green control of tea green leafhoppers. BACKGROUND

[0002] Tea green leafhopper (Empoasca pirisuga Matumura) belongs to Homoptera and Empoascidae. It sucks the juice of buds, leaves and twigs with nymphs, and the damaged leaves appear yellow-white spots on the surface at the initial stage, then the buds and leaves are curled and hardened, which causes the growth of tea leaves to be hindered, new buds not to grow, and even no tea to be picked in severe cases.

[0003] The buds and leaves damaged by the tea green leafhoppers also have a serious impact on the quality of tea, which is easy to break during processing, increases the broken tea, is easy to produce smoke and coke, and reduces the yield of finished products.

[0004] The tea green leafhoppers are currently mainly controlled by chemical agents, and the current chemical control agents mainly include acetamiprid, bifenthrin and buprofezin. The tea green leafhoppers have developed high-level resistance to acetamiprid, bifenthrin and other chemical pesticides, and the control effect of chemical pesticides on the tea green leafhoppers is obviously decreased. If the dosage of pesticides is increased and the number of control times is increased, many tea areas apply pesticides more than 10 times per year, which accounts for 40-60% of the total cost of pest control. This leads to the prominent problem of resistance of the tea green leafhoppers, reduces the biodiversity of tea gardens, aggravates the damage, and causes serious food safety problems and leads to the excessive standard of pesticide residues in tea. Although physical measures are also used to control the tea green leafhoppers, the physical measures mainly include the application of friendly color plates and insecticidal lamps in the field, which are green and have no pesticide residues. However, the friendly color plates still kill a small amount of natural enemies of the tea green leafhoppers and other beneficial insects, and the insecticidal lamps have weak attraction and consume human, material and financial resources. SUMMARY

[0005] The present application aims at solving the above problems of the prior art and provides a method for green control of tea green leafhoppers, which is completely ecological, green and natural.

[0006] In order to achieve the above purpose, the present application provides a method for green control of tea green leafhoppers, which extracts melon juice from melon, uses artificial wind to disturb the tea green leafhoppers into the air, and then sprays the melon juice into the air and on the tea trees. The flying or crawling tea green leafhoppers are adhered to the body and wings by the melon juice, the body and wings of the tea green leafhoppers are covered by the melon juice, the tea green leafhoppers lose the ability of crawling and flying when the water in the melon juice evaporates, and the tea green leafhoppers die, rot and decompose naturally, and the melon juice is also naturally decomposed, thereby achieving the purpose of the present application. The melon juice is rich in auxin, which has strong viscosity and is easy to be naturally degraded in a short period of time.

[0007] The artificial wind force can use the existing frost-preventing fan in the tea garden; the misting of the melon juice into the air and on the tea trees can use the existing misting facilities in the tea garden. When the melon juice is misted, the melon juice extract can be diluted to a suitable spraying concentration state.

[0008] The specific steps can be as follows: Step one, preparation and preparation of melon juice: mature or nearly mature melons are picked and put into a pulverizer to be pulverized to 100 mesh, then filtered through a 150-200 mesh screen, and the filtered melon juice is stored in a low-temperature vacuum container. When used to control tea green leafhoppers, the melon juice is diluted according to the proportion. The specific dilution of the melon juice for controlling tea green leafhoppers can be as follows: 1 kg of melon juice mother liquor is mixed with 50 kg of water, and about 30 kg of melon diluent is needed for one mu of tea garden; Step two, device and setting adjustment: the original infrastructure in the tea garden can be used, ① tea frost-preventing fan: when controlling tea green leafhoppers, the original facilities are adjusted appropriately, specifically, the angle of the tea frost-preventing fan is adjusted to be inclined downward and aimed at the tea tree crown, and the wind force of the tea frost-preventing fan is adjusted to the maximum gear; ② tea misting system: the water in the water storage tank and the pipeline of the original misting system in the tea garden is emptied in advance; Step three, (1) the period of controlling tea green leafhoppers, the whole cycle of tea green leafhoppers can be controlled, when it is observed or predicted that the tea green leafhoppers in the tea garden enter the peak period, the green leafhoppers are active in the morning from 10 to 12 o'clock on sunny days; (2) melon juice diluent addition: the diluted melon juice prepared in step one is added to the water storage tank of the tea misting system; (3) device and facility use: (a) adjust the tea frost-preventing fan to the maximum gear, start the machine, and work for 2-3 minutes continuously, a large number of tea green leafhoppers fly into the air from the tea bushes and weeds under the disturbance of the high-power wind of the tea frost-preventing fan; (b) 30 seconds before the tea frost-preventing fan stops working, the tea misting system is started to mist the melon juice, and the misting time of the misting system is about 1 minute.

[0009] The application provides a method for green control of tea green leafhoppers, which selects a juice extracted from vegetable squash and rich in healing factor, strong viscosity, good water solubility and easy decomposition, and has the following technical effects: ① The squash juice extracted from the vegetable squash is green, natural, naturally degradable, free of any toxic side effects and residues, and has strong viscosity; ② Physical acquisition of leafhopper pests, tea green leafhoppers live in tea bushes and weeds, when high-intensity wind of frost protection fans of tea gardens blows against the tea bushes and weeds, the tea green leafhoppers are disturbed from the tea bushes and weeds to fly in the air, at this time, the diluted squash juice is in a mist in the tea garden, when the diluted squash juice of the mist is adhered to the bodies and wings of the flying tea green leafhoppers in the air, the tea green leafhoppers fall rapidly, and some fly back and land in the tea bushes and weeds, with the increase of temperature, the water in the squash juice adhered to the bodies and wings of the tea green leafhoppers evaporates, the squash juice covers the bodies and wings of the tea green leafhoppers, the tea green leafhoppers lose the ability of crawling and flying, and the tea green leafhoppers die naturally soon, the dead bodies of the tea green leafhoppers rot and are naturally decomposed with the squash juice; ③ No pesticide residues, the squash juice is derived from plant sources and is easy to degrade without any pesticide residues; ④ The squash juice has good dispersibility and is easy to dissolve in water; and ⑤ The method protects the environment and natural enemies, is harmless to people and livestock, promotes the growth of crops, and balances the ecology of the tea garden.

[0010] The method for green control of tea green leafhoppers has the characteristics of simple operation and green environmental protection, reduces the use amount of chemical pesticides in the tea garden, and has a control effect on the tea green leafhoppers of more than 80%. In addition, due to the use of the method, the use amount of the chemical agent bifenox is reduced by more than 90%, the application of the chemical agent bifenox to the control of the tea green leafhoppers in the tea garden is greatly reduced, and the pollution of the chemical agent bifenox to the tea garden is reduced. Furthermore, the problems of drug resistance of the tea green leafhoppers, excessive pesticide residues in tea, and re-increased problems of secondary pests are reduced. The application provides a method for controlling tea green leafhoppers, which is efficient, green, safe, pollution-free, and compatible with the environment.

[0011] The squash is a variety of pumpkin, which can be eaten while growing in the growth period. The cut surface of the squash can automatically and quickly heal after being cut, and can continue to grow after being cut. The squash juice is rich in healing factor, has strong viscosity, is easy to dissolve in water, is easy to decompose, has no any toxic side effects, belongs to plant sources, is green, pollution-free, and pure natural. The squash is generally harvested from late May to late September in open field cultivation, is harvested from early May to August in facility cultivation, and is marketed from December to the following February in autumn delayed cultivation, and basically can be supplied throughout the year. DETAILED DESCRIPTION

[0012] The preferred embodiments of the application are described below, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the application, and are not used to limit the application.

[0013] Embodiment:

[0014] The following is further described in detail through specific embodiments:

[0015] The method for green control of tea green leafhopper provided by the embodiment extracts melon juice from melon cutting, uses artificial wind to disturb the tea green leafhopper into the air, and then mists the melon juice into the air and on the tea trees. The flying or crawling tea green leafhopper is adhered to the body and wings by the melon juice, the body and wings of the tea green leafhopper are covered by the melon juice, when the water in the melon juice evaporates, the tea green leafhopper loses the ability to crawl and fly, and the tea green leafhopper soon dies, rots and decomposes naturally, and the melon juice also decomposes naturally, thereby achieving the purpose of the application. The melon juice is rich in healing factor, and the healing factor has strong viscosity and is easy to degrade naturally in a short period of time.

[0016] The artificial wind can use the existing frost prevention fan in the tea garden, and the melon juice can be misted into the air and on the tea trees by using the existing misting facilities in the tea garden. When the melon juice is misted, the melon juice extract can be diluted to a suitable spraying concentration state. Here, the existing frost prevention fan in the tea garden and the existing misting facilities in the tea garden are existing equipment, and are not described in detail here.

[0017] In the implementation, the specific steps can be as follows: Step 1, preparation and preparation of the medicine: the mature or almost mature melon is picked and put into a pulverizer to be pulverized to 100 mesh, then filtered through a 150-200 mesh filter screen, and the filtered melon juice is stored in a low-temperature vacuum container. When used for preventing and controlling tea green leafhoppers, the melon juice is taken out and diluted according to the proportion. Specifically, the dilution of the melon juice for preventing and controlling tea green leafhoppers can be prepared according to 1 kg of melon juice mother liquor, 50 kg of water, and about 30 kg of melon diluent is needed for one mu of tea garden. Step 2, device and setting debugging: the original infrastructure of the tea garden can be used, ① tea garden frost prevention fan: when preventing and controlling tea green leafhoppers, the original device is adjusted appropriately, specifically, the angle of the tea garden frost prevention fan is adjusted, the angle of the frost prevention fan is adjusted to be inclined downward to the tea tree crown, and the wind power gear of the tea garden frost prevention fan is adjusted to the maximum gear; ② tea garden mist system: the water in the water storage tank and pipeline of the original mist system in the tea garden is emptied in advance; Step 3, (1), the period of preventing and controlling tea green leafhoppers, the whole cycle of tea green leafhoppers can be carried out, when it is observed or predicted that the tea garden tea green leafhoppers enter the peak period, the green leafhoppers are active in the morning from 10 to 12 o'clock on sunny days; (2), melon juice diluent addition: the diluted melon juice prepared in step 1 is added to the water storage tank of the tea garden mist system; (3), device and facility use: (a) the tea garden frost prevention fan gear is adjusted to the maximum gear, and the machine is started to work for 2-3 minutes continuously, a large number of tea green leafhoppers fly to the air from the tea bushes and weeds under the disturbance of the high-power wind of the tea garden frost prevention fan; (b) the tea garden mist system is started 30 seconds before the tea garden frost prevention fan stops working to carry out the melon juice mist, and the spraying time of the mist system is about 1 minute.

[0018] The melon juice used in this example is fresh melon purchased on the market. The specific parameters used in the above examples are shown in Table 1, Table 2 and Table 3, Example 3.

[0019] In order to illustrate the beneficial effects of the present application, Examples 1 and 2 in Table 1, Table 2 and Table 3 use chemical pesticides for comparison, and Example 4 in Table 1, Table 2 and Table 3 is a blank control. In the comparison with the use of chemical pesticides, the pesticide buprofezin widely used in tea gardens is used, which is also known as bromothion. It is an aryl pyrrole high-efficiency insecticide, which inhibits the transformation of mitochondria in insects, has contact and stomach toxicity, and belongs to a new type of low-toxicity, low-residue, broad-spectrum and high-efficiency insecticide. Buprofezin replaces high-toxicity pesticides such as methamidophos and is widely used in tea planting.

[0020] In the comparative example, 10% buprofezin suspension concentrate (except for) produced by BASF Europe Company is used for prevention and control with traditional 1785 times dilution.

[0021] Buprofezin refers to the actual mass of buprofezin; 5% butene flufenprox refers to the volume of 5% butene flufenprox emulsion.

[0022] The detailed administration scheme is as follows:

[0023] 1. Use of the agent

[0024] The amount of agent used per mu is according to the drug ratio in Table 1, such as: Comparative Examples 1 and 2: 240 grams / liter of imicyafos 30 ml (BASF); pure chopped melon juice diluted with water in a ratio, concentration see Table 1.

[0025] 2. Administration time

[0026] On May 10, 2023, the most active period of tea small green leafhoppers was administered 1-2 hours after the dew completely dried in the morning 10-11 am in the tea garden.

[0027] 3. Administration site

[0028] Lishui City, Songyang County, Lishui City, Lishui Agricultural and Forestry Science Research Institute, Tea Tree Germplasm Resource Garden, 1 mu per test area.

[0029] 4. Administration method

[0030] Drug dilution: dilute according to the drug ratio in Examples 1-2 and Comparative Example 3, when diluting, dissolve the drugs in Examples 1-2 and Comparative Example 3 into 50 liters of water, Examples 1-2 are sprayed by electric sprayer, and Example 3 is sprayed by tea garden mist system. When administering, focus on uniform spraying on the tea piaotai (upper leaf layer of tea bushes picked).

[0031] 5. Insect investigation

[0032] Randomly investigate the number of insects in the administration area before administration at 11 am: randomly investigate the number of tea small green leafhoppers in each plot with 5 points and 50 leaves per point. After administration, randomly investigate the number of insects before 11 am every morning (same investigation method). After administration, investigate the insect situation 1, 3, 7, 10, and 15 days after administration, and statistics of prevention and control effect and insect reduction rate are made, and the statistical results are shown in Table 2.

[0033] From Table 2, it can be seen that the control effect of applying the chemical agent buprofezin in Examples 1-2 is more than 80% on the 3rd and 7th days, and the good control effect can still be achieved on the 10th and 15th days after spraying the chemical agent buprofezin, but the tea green leafhoppers start to fly into the tea gardens from the side tea gardens, and the population base starts to gradually increase. In Example 3, the mortality rate of the tea green leafhoppers is very low on the 1st and 3rd days, 0 on the 1st day and 3.03% on the 3rd day, and reaches 89.09% on the 7th day, which is lower than the control effect of applying the chemical agent buprofezin. On the 15th day, the population base of the tea green leafhoppers in the tea gardens controlled by applying the chemical agent buprofezin is similar to that in the tea gardens controlled by the method of the present application. In order to better control the tea green leafhoppers, the method of Examples 1 and 2 needs to be controlled for 6 times a year, and the method of the present application needs to be controlled for 10 times a year. The chemical agent buprofezin can quickly control the population base of the tea green leafhoppers in the tea gardens and achieve good control effect on the tea green leafhoppers in the tea gardens. The method of the present application is not as quick as the chemical agent buprofezin, but can also well control the population base of the tea green leafhoppers. By increasing the number of control times a year, the control effect is similar to that of the chemical agent buprofezin.

[0034] The chemical agent 10% buprofezin suspension agent in Examples 1 and 2 is controlled at 1700 times and 2500 times liquid respectively to control the tea green leafhoppers, and the quick effect is significantly higher than that of the treatment of the squash juice, and the blank treatment has no control effect. The squash juice treatment has lower quick effect and persistence than the treatment of 10% buprofezin suspension agent 1700 times and 2500 times liquid, especially in the initial 1 day, 3 days and 7 days, the 10% buprofezin suspension agent can quickly kill the tea green leafhoppers and quickly control the pests, and the method of the present application has very little control effect in 1 day and 3 days, and the control effect reaches 89.09% on the 7th day.

[0035] The chemical agent buprofezin suspension agent has significantly and extremely significantly lower quick effect and persistence than the treatment of 10% buprofezin suspension agent 1 785 times liquid, but the control effect is 57.52%, 86.08% and 86.08% in 1 day, 3 days and 7 days, which can still meet the control requirements in the general damaged tea gardens.

[0036] 6. Control cost

[0037] From the comprehensive analysis of the chemical agent, labor cost and tea value-added in the tea gardens, the effect of applying the chemical agent to control the tea green leafhoppers in the tea gardens is obvious, which can effectively control the population base of the tea green leafhoppers in the tea gardens, and the concentration can be controlled at 1500-2000 times. However, with the upgrading of the international and domestic standards for food safety, the food treated by the chemical agent gradually loses the competitiveness in value.

[0038] The embodiment of the present application adopts pure natural vegetable chopped melon juice to prevent and control tea green leafhoppers in tea gardens by physical means. The chopped melon juice is rich in viscous healing substance and can be quickly decomposed in a natural environment. The selection of the medicine and the method of applying the medicine are completely natural and green. The single prevention and control effect is slightly lower than that of chemical medicine prevention and control. By appropriately increasing the number of prevention and control, the same result as that of chemical medicine prevention and control can be achieved.

[0039] The above is only the embodiment of the present application, and the common knowledge of specific structures and properties in the scheme is not described in detail. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, some modifications and improvements can be made, which should be considered as the protection scope of the present application, and these will not affect the effect and practicality of the patent. The protection scope claimed in the present application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

[0040] Table 1 Test design of different doses of chopped melon juice and buprofezin application method for preventing and controlling tea green leafhoppers

[0041] Table 2 Effect of different doses of chopped melon juice and buprofezin agent in tea garden plots for preventing and controlling tea green leafhoppers

[0042] The above insect population investigation is randomly investigated in each prevention and control method, 10 m 2 , and finally the average insect population number per m 2 .

[0043] Table 3 Benefit analysis of chopped melon juice and buprofezin application method for preventing and controlling tea green leafhoppers

[0044]

[0045] Through the embodiment experiment, the applicant found that the application of the tea garden pest prevention and control tea green leafhopper medicine and technical method has good effect on preventing and controlling tea tree related pests, especially the prevention and control effect on tea green leafhoppers is remarkable.

[0046] Finally, it should be pointed out that: the above only describes the preferred embodiments of the present application and is not used to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement of some technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A method for the green control of the tea green leafhopper, characterized by: The method involves extracting juice from cucumbers, using artificial wind to disturb the tea green leafhopper, and then misting the juice into the air and onto the tea trees. The flying or crawling tea green leafhoppers are attached to their bodies and wings by the juice. As the juice evaporates, the tea green leafhoppers lose their ability to crawl and fly, and they quickly die, rot, and decompose naturally. The juice also decomposes naturally, thus achieving green control of the tea green leafhopper. Before misting the juice, the mother liquor extracted from cucumbers is first diluted. The diluted solution is prepared by mixing 1 kg of mother liquor with 50 kg of water.

2. The method for green control of the tea green leafhopper according to claim 1, characterized in that: The artificial wind power utilizes the existing frost-proof fans in the tea garden, and the misting of the melon juice into the air and onto the tea trees utilizes the existing misting facilities in the tea garden.

3. A method for green control of the tea green leafhopper according to claim 1 or 2, characterized in that its Detailed steps The steps are as follows: Step 1, Preparation and formulation of the herbicide, *Cut-cucumber juice*: Pick ripe or nearly ripe *Cut-cucumber* and grind them through a 100-mesh pulverizer. Then filter the pulverized juice through a 150-200 mesh filter. Store the resulting *Cut-cucumber juice* stock solution in a low-temperature vacuum container. When using it to control the tea green leafhopper, take out the *Cut-cucumber juice* stock solution and dilute it according to the following ratio. Specifically, the dilution of the *Cut-cucumber juice* stock solution for controlling the tea green leafhopper is prepared by mixing 1 kg of *Cut-cucumber juice* stock solution with 50 kg of water. One acre of tea garden requires 30 kg of the diluted *Cut-cucumber juice* stock solution. Step 2, Equipment and setup: Utilize the existing infrastructure of the tea garden. ① Tea garden frost protection fan: When controlling the tea green leafhopper, adjust the existing facilities appropriately. Specifically, adjust the angle of the frost protection fan so that it is angled downwards towards the tea tree canopy, and adjust the fan speed to the maximum setting. ② Tea garden fogging system: Utilize the existing tea garden fogging system. All the water in the water tank and pipes of the mist system should be drained in advance; Step 3, (1) During the tea green leafhopper control period, the entire cycle of tea green leafhopper occurrence is carried out. When the tea green leafhopper in the tea garden is observed or predicted to enter the peak period of occurrence, the tea green leafhopper is active from 10 am to 12 pm on a sunny day; (2) Adding the diluted cucumber juice: Add the diluted cucumber juice from step 1 to the water tank of the tea garden mist system; (3) Using the equipment: (a) Adjust the tea garden anti-frost fan to the maximum setting and start the machine to work continuously for 2-3 minutes. Under the disturbance of the high-power wind waves of the tea garden anti-frost fan, a large number of tea green leafhoppers fly into the air from the resting tea bushes and weeds; (b) 30 seconds before the tea garden anti-frost fan finishes working, turn on the tea garden mist system to spray cucumber juice. The mist system spray time is 1 minute.

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