CN1977605A - Farm-chemical main agent for preventing and controlling longicorn of poplar and preparation made from same - Google Patents

Abstract

The invention discloses a main pesticide agent for controlling poplar longhorn beetle and a prepared preparation thereof. The main agent is made of acetamiprid 2.0-20.0%, mixed with dichlorvos or trichlorfon or acephate 10.0-40.0%. It is a special agent for preventing and controlling forestry pests poplar beetle through punching and injection. After the agent is mixed Significant synergistic effect, special effect on poplar longhorn beetle, quick action, not easy to produce drug resistance, low dosage, reduced environmental pollution, and low production cost.

Description

Pesticide main agent for controlling poplar long beetle and its preparation

technical field

The invention belongs to a main pesticide used for punching and injecting to prevent and control poplar longhorn beetle and the preparation thereof.

Background technique

Poplar longhorn beetle is an important dry borer pest of poplar, willow, elm, maple and other tree species in my country, and more than 100 kinds of poplar longhorn beetle have been reported in my country. Due to the hidden life of poplar longhorn beetles, few types of natural enemies, and complex life history, and poplar is one of the preferred tree species for afforestation in China, such as afforestation, windbreak and sand fixation, fast growth and high yield, the food resources of poplar longhorn beetles are sufficient, and the poplar longhorn beetle is seriously damaged in China. The occurrence area is about 600,000 hm ² .

At present, the prevention and control of poplar longhorn adopts the comprehensive control strategy. Details are as follows:

1. Silviculture measures: select excellent varieties such as Zhonglin 46 and Zhonglin 108 with insect resistance for afforestation, strictly quarantine seedlings, and avoid afforestation of seedlings with insects. New poplar forests should be kept away from insect sources, or isolation belts should be planted to create mixed forests; beetle anorectic species and poplars should be used for mixed afforestation. Generally, it is advisable to mix them in blocks, and the shelterbelts can be mixed in sections. Adopt measures such as large holes, large seedlings, high water, frequent fertilization, and frequent loosening of soil to promote healthy and rapid growth of trees and enhance insect resistance.

2. Biological measures: use natural enemies of longicorns such as insects and pathogenic organisms to control longicorns, and woodpeckers can be used to control the day of longicorns in areas where conditions permit; moraceae plants that longicorns eat can be used to trap and kill adult longicorns in newly planted forests. There are also biological control measures aimed at individual longicorn beetles, mainly using biological agents such as Beauveria bassiana, Metarhizium anisopliae, Bacillus thuringiensis (Bt) and other biological agents to directly block and coat the excrement holes of longicorn beetles.

3. Physical measures: Sang beetle is active at night and has strong phototaxis, so black light can be used to trap and kill it. Beetle glabra is active day and night, and its phototaxis is not strong, so adults can be captured artificially. Use tree trunks to avoid adult beetle eggs from laying eggs. In winter, it can be combined with young forest tending to remove insect branches, cut down severely damaged trees, and eradicate hidden dangers.

4. Chemical measures: 1. Zinc phosphide and other organophosphorus pesticides can be used to make poisonous swabs, insert them into wormholes, and smoke and kill larvae. The effect can reach 90%. ② Inject wormholes with 50-300 times dilution of organophosphorus pesticides to kill larvae. ③Use monocrotophos, omethoate and other systemic pesticides to punch and inject at the base or root of the trunk, and seal it with wet soil after filling, which can prevent and control tall tree larvae. ④During the adult and egg stages, spray 1000-2000 times the glue suspension of young veins on a large area to kill adults and eggs. ⑤Using the new contact killer "Green Wei Lei" to control the adult beetle.

At present, there is no practical method to effectively control the outbreak and damage of poplar longhorn beetle in a large area, quickly and with low cost. It is difficult to be truly effective by using silvicultural, biological and physical measures. Biological control is greatly affected by climate, weather and other factors, and the effect is unstable and the cost is high. Using zinc phosphide and other poisonous sticks, the operation procedures are complicated, and it is difficult to implement in large-scale operations; injecting systemic organophosphorus pesticides are all highly toxic pesticides, and the country has now banned their use. Looking for high efficiency, low toxicity, and low price It is urgent to find cheap and effective pesticide substitutes for poplar beetles.

Contents of the invention

The main technical problem to be solved by the present invention is to provide a main pesticide for controlling poplar long beetle with high insecticidal rate and special effect on the control of poplar long beetle and the preparation thereof.

The technical solution for solving the above-mentioned problems is: the main pesticide agent for controlling poplar longhorn beetle contains the mixture of the following active ingredients in weight percentage, acetamiprid 2.0-20.0%, acephate or dichlorvos or trichlorfon 10.0-40.0%.

The optimization scheme of the weight percentage content of the active ingredients of the main agent is: acetamiprid 2.0-10.0%, acephate or dichlorvos or trichlorfon 10.0-35.0%.

The acetamiprid and acephate used in the main agent of the present invention have good systemic properties, and dichlorvos and trichlorfon have a strong contact killing effect. After mixing acetamiprid and acephate or dichlorvos or trichlorfon Significant synergistic effect, special effect on poplar longhorn beetle, quick action, not easy to produce drug resistance, low dosage, reduced environmental pollution, and low production cost.

The insecticide emulsifiable concentrate made of the above-mentioned main agent is composed of the main agent and the auxiliary agent, and the active ingredient weight percentage content of the main agent is 12.0-60.0%. 20.0-80.0%, emulsifier: 1.0-25.0%, co-solvent 0.1-5.0%, stabilizer 0.1-5.0%;

The solvent is selected from one or more of the following components: mixed xylene, toluene, pure benzene, isophorone, pyrrolidone, methanol, ethanol, acetone, butanol, ethylene glycol, dimethylformamide , Acetonitrile.

The emulsifier is selected from one or more of the following components: calcium dodecylbenzenesulfonate, dibenzylphenol polyoxyethylene ether, styrylphenol polyoxyethylene ether, benzyl complex phenol polyoxyethylene ether Vinyl ether, α-methylbenzyl complex phenol polyoxyethylene ether, Nongru 0201, Tween-20, Tween-40, Tween-60, Tween-80, penetrant BX, alkylphenol polyoxygen Vinyl ether phosphate.

The co-solvent is one or more selected from the following: cyclohexanone, pyrrolidone, dimethylformamide.

The stabilizer is one or more selected from the following: aminobenzoic acid, pyrogallic acid, p-nitrobenzoic acid, castor oil, Sudan black, and propyl gallate.

The microemulsion made with above-mentioned main agent is made up of main agent and auxiliary agent, and its active ingredient weight percent content of main agent is 12.0-60.0%, and the auxiliary agent that forms microemulsion is the mixture that comprises following weight percent active ingredient, emulsifier : 2.0-60.0%, solvent 1.0-30.0%, stabilizer 0.1-5.0%, antifreeze 0.1-5.0%, water 1.0-80.0%;

The emulsifier is selected from one or more of the following components: tristyrylphenol oxiraneated phosphate triethanolamine salt, alkyl dipolyoxyethylene sulfonate calcium salt, styrylphenol polyoxygen Vinyl ether, biphenol polyoxyethylene ether, polyoxyethylene phenylphenol ether.

The solvent is one or more selected from the following components: cyclohexanone, pyrrolidone, and dimethylformamide.

The stabilizer is one or more selected from the following components: 3-chloro-1,2-epichlorohydrin, butyl glycidyl ether, phenyl glycidyl ether, polyvinyl glycol di Glycidyl Ether, Sorbitol.

The antifreeze agent is one or more selected from the following components: ethylene glycol, propylene glycol, glycerol, polyethylene glycol, and sorbitol.

The aqueous emulsion made of the above-mentioned main agent is composed of the main agent and the auxiliary agent, and the active ingredient weight percentage content of the main agent is 12.0-60.0%. : 2.0-60.0%, solvent 1.0-30.0%, dispersant 0.1-5.0%, antifreeze 0.1-5.0%, water 10.0-60.0%;

The solvent is selected from one or more of the following components: xylene, ethylene glycol, propylene glycol, polyethylene glycol, and N-long-chain alkylpyrrolidone.

The emulsifier is selected from one or more of the following components: ethylene oxide-propylene oxide block copolymer, alkyl polyglycol ether, alkylphenyl polyglycol ether, polyoxyethylene Ethylene sorbitan ester, polyoxyethylene fatty acid ester, 2,4,6-tris(1-phenylethyl)phenol poly(20) ethylene glycol phosphate monoester, ethoxylated alkylphenyl ether, ethoxylated alkyl Base ether, calcium alkylbenzene sulfonate, ethylene oxide-fatty acid primary amine condensate.

The dispersant is one or more selected from the following components: polyvinyl alcohol and gum arabic.

The antifreeze agent is one or more selected from the following components: ethylene glycol, propylene glycol, glycerol, polyethylene glycol, and sorbitol.

4 kinds of components that main agent of the present invention is used are specifically described as follows:

Acetamiprid: This agent has strong contact and penetration effects, long-lasting effect, and has good control effect on aphids of cucumber, apple and citrus trees. The unique mechanism of action can control aphids resistant to existing pesticides.

Acephate: It is a systemic insecticide with moderate persistent effect and long residual activity. It is suitable for vegetables, tea, tobacco, fruit trees, cotton, rice, wheat and other crops to prevent and control chewing, piercing and sucking mouthparts pests and harmful mites.

Dichlorvos (dichlorvos): colorless to amber liquid. It is a contact and stomach poison insecticide with fumigating and penetrating effects. It can be used as a fumigant for households and public places, especially effective against diptera pests and mosquitoes.

Trichlorfon (trichlorfon): colorless crystalline powder, melting point 83-84 ° C, is a kind of contact and stomach poison insecticide, with osmotic activity. It is suitable for the prevention and control of chewing mouthparts pests of rice, wheat, vegetables, tea trees, fruit trees, mulberry trees, cotton and other crops, ectoparasites of livestock, and sanitary pests.

The 4 kinds of components that main agent of the present invention is used are all insecticides well known in the art, and can be purchased from market easily.

When preparing the medicament for preventing and controlling poplar beetle of the present invention, acetamiprid and acephate or dichlorvos or trichlorfon are mixed in a certain ratio, and appropriate auxiliary agents are added, such as emulsifiers, dispersants, Stabilizers, penetrants, etc. are mixed, and emulsifiable concentrates, microemulsions, and water emulsions can be prepared according to common methods.

specific embodiment

The following examples further illustrate the technical solution of the present invention, but the content of the present invention is not limited thereto.

Example 1: Composition and preparation method of 12.0% acetamiprid·acephate EC

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, acephate 10.0;

The weight percent (%) of each component of the auxiliary agent is: solvent, xylene 50.5, benzene 15.0; emulsifier, benzyl complex phenol polyoxyethylene ether 12.0, α-methyl benzyl complex phenol polyoxyethylene ether 9.0; cosolvent , dimethylformamide 0.5; stabilizer, p-nitrobenzoic acid 1.0;

The above-mentioned weight ratio raw materials are mixed to make emulsifiable concentrate by traditional emulsifiable concentrate processing method.

Example 2: Composition and preparation method of 12.0% acetamiprid·dichlorvos emulsifiable concentrate

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, dichlorvos 10.0;

The weight percentage (%) of each component of the auxiliary agent is: solvent, toluene 71.5; emulsifier, calcium dodecylbenzenesulfonate 14.0; cosolvent, pyrrolidone 0.5; stabilizer, p-nitrobenzoic acid 1.5, p-nitrobenzoic acid 0.5;

After mixing the raw materials in the above weight ratio, the traditional cream processing method is used to make cream.

Example 3: Composition and preparation method of 12.0% acetamiprid trichlorfon emulsifiable concentrate

The percentage by weight (%) of each active ingredient of the main agent is: acetamiprid 2.0, trichlorfon 10.0;

The weight percent (%) of each component of auxiliary agent is: solvent, xylene 74.5; Emulsifier, dibenzylphenol polyoxyethylene ether 4.0, penetrating agent BX8.0; Cosolvent, dimethylformamide 0.5; Stabilizer, coke Sexual gallic acid 1.0;

After mixing the raw materials in the above weight ratio, the traditional cream processing method is used to make cream.

Example 4: Composition and preparation method of 40.0% acetamiprid·acephate EC

The weight percent (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, acephate 35.0;

The weight percent (%) of each component of the auxiliary agent is: solvent, xylene 17.5, benzene 20.0; emulsifier, benzyl complex phenol polyoxyethylene ether 17.0, α-methyl benzyl complex phenol polyoxyethylene ether 4.0; cosolvent , dimethylformamide 0.5; stabilizer, p-nitrobenzoic acid 1.0;

After mixing the raw materials in the above weight ratio, the traditional cream processing method is used to make cream.

Example 5: Composition and preparation method of 40.0% acetamiprid·dichlorvos emulsifiable concentrate

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, dichlorvos 35.0;

The weight percent (%) of each component of the auxiliary agent is: solvent, toluene 39.5; emulsifier, calcium dodecylbenzenesulfonate 18.0; cosolvent, pyrrolidone 0.5; stabilizer, p-nitrobenzoic acid 0.5, propyl gallate 1.5 ;

After mixing the raw materials in the above weight ratio, the traditional cream processing method is used to make cream.

Example 6: Composition and preparation method of 40.0% acetamiprid trichlorfon emulsifiable concentrate

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, trichlorfon 35.0;

The weight percent (%) of each component of auxiliary agent is: solvent, xylene 42.5; Emulsifier, dibenzylphenol polyoxyethylene ether 2.0, penetrating agent BX 14.0; Cosolvent, dimethylformamide 0.5; Stabilizer, scorch Gallic acid 1.0;

After mixing the raw materials in the above weight ratio, the traditional cream processing method is used to make cream.

Example 7: Composition and preparation method of 12.0% acetamiprid·acephate microemulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, acephate 10.0;

The weight percent (%) of each component of the adjuvant is: emulsifier, styrene-based phenol polyoxyethylene ether 10.0, alkyl dipolyoxyethylene sulfonate calcium salt 12.0; co-solvent, cyclohexanone 4.0; stabilizer, butyl shrink Glycerin ether 2.5, antifreeze, glycerol 2.5; water 57.0;

After the raw materials of above-mentioned weight ratio are mixed, microemulsion is made by microemulsion processing method

Example 8: Composition and preparation method of 12.0% acetamiprid·dichlorvos microemulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, dichlorvos 10.0;

The weight percent (%) of each component of auxiliary agent is: emulsifier, polyoxyethylene phenylphenol ether 21.0; Solvent, dimethylformamide 8.0; Stabilizer, sorbic acid alcohol 2.0, antifreeze agent, ethylene glycol 2.0; Water 55.0;

After mixing the raw materials in the above weight ratio, a microemulsion is prepared by a microemulsion processing method.

Example 9: Composition and preparation method of 12.0% acetamiprid·trichlorfon microemulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, trichlorfon 10.0;

The weight percentage (%) of each component of auxiliary agent is: solvent, xylene 15.0, dimethylformamide 3.0; Biphenol polyoxyethylene ether 12.0, polyoxyethylene phenylphenol ether 6.0; Stabilizer, gallopropyl ester 2.0, anti Freezing agent, polyethylene glycol 2.0; water 48.0;

After the raw materials of above-mentioned weight ratio are mixed, microemulsion is made by microemulsion processing method

Example 10: Composition and preparation method of 40.0% acetamiprid·acephate microemulsion

The weight percent (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, acephate 35.0;

The weight percent (%) of each component of the auxiliary agent is: emulsifier, styrene-based phenol polyoxyethylene ether 14.0, alkyl dipolyoxyethylene sulfonate calcium salt 16.0; solvent, cyclohexanone 12.0, stabilizer, aminobenzoic acid 2.5 ; Antifreeze, glycerol 2.5; water 13.0;

After the raw materials of above-mentioned weight ratio are mixed, microemulsion is made by microemulsion processing method

Example 11: Composition and preparation method of 40.0% acetamiprid·dichlorvos microemulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, dichlorvos 35.0;

The weight percent (%) of each component of auxiliary agent is: emulsifier, polyoxyethylene phenylphenol ether 29.0; Solvent, dimethylformamide 8.0; Stabilizer, butyl glycidyl ether 2.0, antifreeze agent, ethylene glycol 2.0 ;water 19.0;

After mixing the raw materials in the above weight ratio, a microemulsion is prepared by a microemulsion processing method.

Example 12: Composition and preparation method of 40.0% acetamiprid·trichlorfon microemulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, trichlorfon 35.0;

The weight percent (%) of each component of auxiliary agent is: solvent, xylene 14.0, dimethylformamide 5.0; Emulsifier, biphenol polyoxyethylene ether 12.0, polyoxyethylene phenylphenol ether 10.0; Stabilizer, 2-ring Oxychloropropane 3.0, Polyethylene Glycol 2.0; Water 14.0;

The traditional microemulsion processing method is used to make microemulsion after mixing the raw materials of the above weight ratio

Example 13: Composition and preparation method of 12.0% acetamiprid·acephate emulsion in water

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, acephate 10.0;

The weight percentage (%) of each component of the auxiliary agent is: solvent, propylene glycol 5.0, N-long chain alkylpyrrolidone 8.0; emulsifier, polyoxyethylene sorbitan ester 12.0, alkylphenyl polyethylene glycol ether 4.0; dispersion agent, gum arabic 3.0; antifreeze agent, ethylene glycol 3.0; water 53.0;

The traditional water emulsion processing method is used to prepare water emulsion after mixing the raw materials in the above weight ratio.

Example 14: Composition and preparation method of 12.0% acetamiprid·dichlorvos aqueous emulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, dichlorvos 10.0;

The weight percentage (%) of each component of the auxiliary agent is: solvent, N-long chain alkyl pyrrolidone 12.0; emulsifier, alkyl polyglycol ether 8.0, polyoxyethylene fatty acid ester 2.0; dispersant, polyvinyl alcohol 2.0, Gum Arabic 3.0; Antifreeze, Ethylene Glycol 2.0; Water 59.0;

The traditional water emulsion processing method is used to prepare water emulsion after mixing the raw materials in the above weight ratio.

Example 15: Composition and preparation method of 12.0% acetamiprid·trichlorfon aqueous emulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 2.0, trichlorfon 10.0;

The weight percentage (%) of each component of the auxiliary agent is: solvent, propylene glycol 6.0, N-long chain alkyl pyrrolidone 8.0; emulsifier, ethylene oxide-propylene oxide block copolymer 15.0; dispersant, polyvinyl alcohol 2.0; Antifreeze, glycerol 2.0; water 55.0;

The traditional water emulsion processing method is used to prepare water emulsion after mixing the raw materials in the above weight ratio.

Example 16: Composition and preparation method of 40.0% acetamiprid·acephate emulsion in water

The weight percent (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, acephate 35.0;

The weight percent (%) of each active ingredient of the adjuvant is: solvent, propylene glycol 5.0, N-long chain alkylpyrrolidone 12.0; emulsifier, polyoxyethylene sorbitan ester 12.0, alkylphenyl polyethylene glycol ether 8.0; Dispersant, Gum Arabic 3.0; Antifreeze, Ethylene Glycol 3.0; Water 17.0;

After mixing the raw materials of the active ingredients in the above weight ratio, the traditional water-emulsion processing method is used to prepare the water-emulsion.

Example 17: Composition and preparation method of 40.0% acetamiprid·dichlorvos aqueous emulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, dichlorvos 35.0;

The weight percent (%) of each active ingredient of the auxiliary agent is: solvent, N-long chain alkyl pyrrolidone 15.0; emulsifier, alkyl polyglycol ether 10.0, polyoxyethylene fatty acid ester 8.0; dispersant, polyvinyl alcohol 2.0 , gum arabic 2.0; antifreeze, ethylene glycol 1.0; water 22.0;

After mixing the raw materials of the active ingredients in the above weight ratio, the traditional water-emulsion processing method is used to prepare the water-emulsion.

Example 18: Composition and preparation method of 40.0% acetamiprid·trichlorfon aqueous emulsion

The percentage by weight (%) of each active ingredient of the main agent of this example is: acetamiprid 5.0, trichlorfon 35.0;

The weight percentage (%) of each active ingredient of auxiliary agent is: solvent, propylene glycol 4.0, N-long chain alkylpyrrolidone 15.0; Emulsifier, ethylene oxide-propylene oxide block copolymer 18.0; Dispersant, polyvinyl alcohol 2.0 ; Antifreeze, glycerol 2.0; water 19.0;

After mixing the raw materials of the active ingredients in the above weight ratio, the traditional water-emulsion processing method is used to prepare the water-emulsion.

Embodiment 19: Indoor synergistic toxicity assay

Each test agent was made into five concentrations of 500, 250, 125, 62.5 and 31.25 μg/mg, and the prepared pesticide was sucked from low concentration to high concentration with a micro-sampler, and dropped on the chest of the 3rd instar larvae of Beetle glabrata Wash the micro-sampler with acetone between different chemicals, drop 2 μL per head, 30 heads per concentration, use 4% acetone solution as a control, observe the number of larvae deaths in 24 hours, see Table 1 for the identification method of the dead and alive larvae of Beetleus glabrata, and calculate LC ₅₀ value, toxicity regression equation and co-toxicity coefficient. The co-toxicity coefficient was calculated by Sun Yunpei method.

Co-toxicity coefficient CTC = 100 × toxicity index of actual mixed use / toxicity index of theoretical mixed use

When the co-toxicity coefficient is significantly greater than 100, it indicates that there is a synergistic effect; when it is close to 100, it indicates that there is an additive effect; and when it is significantly less than 100, it indicates that there is an antagonistic effect. The calculation results are shown in Table 2:

                                                           

Category body surface color Insect body elasticity   Response to external stimuli The side shape of the worm body live insects Shiny bouncy move round dead bug Dull inelastic don't move oblate

                                                                

  Drugs to be tested Virulence regression equation _LC50 value (μg/mg) Correlation coefficient co-toxicity coefficient Acetamiprid Y＝1.290X+2.192 150.26 0.9916 Acephate Y＝0.882X+3.002   184.62 0.9904

dichlorvos Y＝0.995X+2.705 202.56 0.9889 Trichlorfon Y＝0.462X+3.914 223.68 0.9876 Acetamiprid: Acephate = 2:10 Y＝1.197X+2.517 118.48 0.9945 150.10 Acetamiprid: Acephate = 5:35 Y＝1.298X+2.218 138.89 0.9846  129.23 Acetamiprid: Trichlorfon = 2:10 Y＝1.525X+1.716 142.63 0.9842 145.02 Acetamiprid: Trichlorfon == 5:35 Y＝1.185X+2.432 147.03 0.9867 105.94 Acetamiprid: Dichlorvos == 2:10 Y＝1.375X+2.068 135.64 0.9882 141.15 Acetamiprid: Dichlorvos = 5:35 Y＝1.013X+2.819 142.06 0.9849 136.13

Embodiment 20: field efficacy test measurement result

Test site: Poplar planting area in Feidong County, Anhui Province, where the occurrence of long beetle beetle is serious.

The test time is from April 12th to April 22nd, the application time is April 12th, and the investigation time is April 22nd.

Weather conditions: During the test period, it was all sunny, the temperature was 17-24°C, the humidity was 47-82%, and there was light rain on April 19. There was no rainfall or abnormal weather at other times.

Punching injection method: use a punching machine to punch 2 holes in the poplar tree 10cm above the ground, each hole diameter is 1cm, and the hole depth is about 8-10cm. slope. Mix 40% of each agent with water in a ratio of 1:1 and inject into the hole, and seal it with glass glue. The hazard situation and the general situation of the insect state were investigated before the application of the pesticide, and the death of the larvae of the longhorn beetle was investigated 10 days after the application of the pesticide. The results are shown in Table 3.

                                                                                

deal with Insect population base before treatment (head) Number of dead insects after treatment (head) Adjusted mortality rate (%) CK 93 0 Acetamiprid 97 50 51.55 Acephate 93 45 48.39 dichlorvos 97 43 44.33 Trichlorfon 97 37 38.14 Example 1 91 89 97.80 Example 2 93 87 93.55 Example 3 87 79 90.80

Claims (8)

1. A main pesticide agent for preventing and controlling poplar long beetle, characterized in that: it is a mixture mainly comprising the following active ingredients in percentage by weight: acetamiprid 2.0-20.0%, dichlorvos or trichlorfon or acephate 10.0-40.0% . 2. The pesticide main agent according to claim 1, characterized in that: it is a mixture mainly comprising the following active ingredients in weight percent: acetamiprid 2.0-10.0%, dichlorvos or trichlorfon or acephate 10.0-35.0% %. 3. according to the emulsifiable concentrate that the described pesticide main agent of claim 1 and 2 is made, it is characterized in that: be made up of main agent and auxiliary agent, its main agent active ingredient weight percent content is 12.0-60.0%, the auxiliary agent that forms emulsifiable concentrate is The mixture comprises the following active ingredients by weight: solvent: 20.0-80.0%, emulsifier: 1.0-25.0%, co-solvent 0.1-5.0%, stabilizer 0.1-5.0%. 4. according to the described pesticide main agent of claim 3, make emulsifiable concentrate, it is characterized in that: described solvent is selected from one or more of following composition: xylene, toluene, benzene, isophorone, pyrrolidone, methyl alcohol , ethanol, acetone, butanol, ethylene glycol, dimethylformamide, acetonitrile; The emulsifier is selected from one or more of the following components: calcium dodecylbenzenesulfonate, dibenzylphenol polyoxyethylene ether, styrylphenol polyoxyethylene ether, benzyl complex phenol polyoxyethylene ether Vinyl ether, α-methylbenzyl polyoxyethylene ether, Nongru 0201, Tween-20, Tween-40, Tween-60, Tween-80, penetrant BX, alkylphenol polyoxygen Vinyl ether phosphate; The co-solvent is one or more selected from the following components: cyclohexanone, pyrrolidone, dimethylformamide; The stabilizer is one or more selected from the following components: aminobenzoic acid, pyrogallic acid, p-nitrobenzoic acid, castor oil, Sudan black, and propyl gallate. 5. according to claim 1 and 2 described pesticide main agent is made into microemulsion, it is characterized in that: be made up of main agent and auxiliary agent, its main agent active ingredient weight percent content is 12.0-60.0%, the auxiliary agent of forming microemulsion It is a mixture comprising the following active ingredients by weight percentage, emulsifier: 2.0-60.0%, solvent 1.0-30.0%, stabilizer 0.1-5.0%, antifreeze agent 0.1-5.0%, water 1.0-80.0%. 6. according to the described pesticide main agent of claim 5, make microemulsion, it is characterized in that: described emulsifying agent is selected from one or more in the following composition: tristyrylphenol oxiraneated phosphoric acid three Ethanolamine salt, alkyl dipolyoxyethylene sulfonate calcium salt, styrylphenol polyoxyethylene ether, biphenol polyoxyethylene ether, polyoxyethylene phenylphenol ether; The solvent is one or more selected from the following components: xylene, benzene, cyclohexanone, pyrrolidone, dimethylformamide; The stabilizer is one or more selected from the following components: 3-chloro-1,2-epichlorohydrin, butyl glycidyl ether, phenyl glycidyl ether, polyvinyl glycol di Glycidyl Ether, Sorbitol. The antifreezing agent is one or more selected from the following components: ethylene glycol, propylene glycol, glycerol, polyethylene glycol, and sorbitol. 7. according to the water-emulsion that the described pesticide main agent of claim 1 and 2 is made, it is characterized in that: be made up of main agent and auxiliary agent, its main agent active ingredient weight percent content is 12.0-60.0%, the auxiliary agent of forming water-emulsion The agent is a mixture containing the following active ingredients by weight percentage, emulsifier: 2.0-60.0%, solvent 1.0-30.0%, dispersant 0.1-5.0%, antifreeze agent 0.1-5.0%, water 1.0-80.0%. 8. according to the described pesticide main agent of claim 7, make water emulsion, it is characterized in that: described solvent is selected from one or more of following composition: xylene, ethylene glycol, propylene glycol, polyethylene glycol, N-long chain alkylpyrrolidone; The emulsifier is selected from one or more of the following components: ethylene oxide-propylene oxide block copolymer, alkyl polyglycol ether, alkylphenyl polyglycol ether, polyoxyethylene Ethylene sorbitan ester, polyoxyethylene fatty acid ester, 2,4,6-tris(1-phenylethyl)phenol poly(20) ethylene glycol phosphate monoester, ethoxylated alkylphenyl ether, ethoxylated alkyl Base ether, calcium alkylbenzene sulfonate, ethylene oxide-fatty acid primary amine condensate; The dispersant is one or more selected from the following components: polyvinyl alcohol, gum arabic; The antifreeze agent is one or more selected from the following components: ethylene glycol, propylene glycol, glycerol, polyethylene glycol, and sorbitol.