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Insecticidal composition containing pymetrozine and thiacloprid and preparation method

An insecticidal composition, thiacloprid technology, applied in botany equipment and methods, insecticides, biocides, etc., can solve the problems of no reported cross-resistance to pymetrozine, etc., to reduce the cost of pesticides for farmers and delay the development of pesticides. Time of resistance generation, effect of pollution reduction

Inactive Publication Date: 2015-12-16
HUAZHONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Pymetrozine has no knockdown activity on pests and will not cause direct toxicity to pests. When pests come into contact with pymetrozine, they will have a stylet blocking effect, stop feeding immediately, and die of starvation. There is no report of pymetrozine and other agents cross resistant

Method used

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  • Insecticidal composition containing pymetrozine and thiacloprid and preparation method
  • Insecticidal composition containing pymetrozine and thiacloprid and preparation method
  • Insecticidal composition containing pymetrozine and thiacloprid and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Example 1: (9:1)

[0058] An insecticidal composition and suspension containing pymetrozine and thiacloprid, which is made of the following raw materials in mass fraction:

[0059]

[0060] The above-mentioned insecticidal composition containing pymetrozine and thiacloprid and the preparation method of the suspension concentrate, the steps are:

[0061] A. According to the designed formula, weigh the original medicine of pymetrozine and thiacloprid, put them into a holding container, then add sodium lauryl sulfate, sodium lignosulfonate and naphthalenesulfonate formaldehyde polymer, acetone Triol, AF9903, white carbon black, stir well;

[0062] B. Stir at high speed (1000 rpm) to pre-disperse for 25-35 minutes, then stop stirring (until the solution is completely homogeneous liquid), add sanding medium, and start sanding;

[0063] C. Stop sanding after 1.8-2.2h (until more than 95% of the particle size is 0.1-5μm), filter, remove the glass beads, add other additive...

Embodiment 2

[0064] Example 2: (7:3)

[0065] An insecticidal composition and suspension containing pymetrozine and thiacloprid, which is made of the following raw materials in mass fraction:

[0066]

[0067] The preparation method of the insecticidal composition preparation containing pymetrozine and thiacloprid, the steps are: the same as in Example 1.

[0068] The additives such as sodium lauryl sulfate can use MorwetEFW (the composition is the mixture of sodium salt of alkylnaphthalene sulfonate and anionic wetting agent, Akzo Bell), Terspense4896 (alkylphenol polyether type wetting and dispersing agent) , Sodium dibutyl naphthalene sulfonate, sodium dioctyl sulfosuccinate, tea Ku, GY-W04 (polycarboxylate wetting agent), etc. or any combination of two to six instead.

Embodiment 3

[0069] Example 3: (3:2)

[0070] A water-dispersible granule containing pymetrozine and thiacloprid, which is made of the following raw materials in mass fraction:

[0071]

[0072] The preparation method of the insecticidal composition preparation containing pymetrozine and thiacloprid, the steps are:

[0073] A. Combine pymetrozine, thiacloprid, dispersant (sodium lauryl sulfate and MorwetEFW (1:3)), wetting agent (MorwetD-425 and naphthalenesulfonate formaldehyde polymer (3:1), Filler (diatomaceous earth), disintegrant (starch) and other samples are weighed according to the designed formula, mixed, and pulverized on a high-speed pulverizer;

[0074] B. The pulverized sample is placed in a beaker, and water containing binder (water containing 10-20% binder) is added while stirring, and it can be initially kneaded into mud, and then added to a granulator for extrusion granulation ;

[0075] C. Finally, place the extruded granules in an oven at 30-40°C for drying, and th...

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Abstract

A disclosed insecticidal composition containing pymetrozine and thiacloprid comprises the active ingredient pymetrozine and the active ingredient thiacloprid with the weight ratio of 3:7-20:1. Through reasonable matching of pymetrozine and thiacloprid in the formula, the pesticide effect is improved, the pesticide-resistance generation time of nilaparvata lugens to pymetrozine and thiacloprid is delayed, pesticide usage amount is reduced, environment pollution is effectively mitigated, cost is low, also peasant financial burden is reduced, sustainable development requirement is satisfied, and also the formula possesses characteristics of efficiency and safety.

Description

technical field [0001] The invention belongs to the field of insecticidal technology containing pyridine compounds and neonicotinoid compounds, more specifically relates to an insecticidal composition containing pymetrozine and thiacloprid, and also relates to a composition containing pymetrozine and thiacloprid A preparation method of a thiacloprid mixed preparation, which is suitable for preventing and controlling piercing-sucking pests brown planthopper, white-backed planthopper, gray planthopper, green planthopper, aphids, whitefly, whitefly in greenhouses, leafhoppers, and thrips mulberry , citrus psyllid, rice thrips and other agricultural pests. Background technique [0002] Brown planthopper is the primary pest on rice. It mainly harms crops by sucking rice sap and spreading virus diseases, resulting in reduced grain production and serious economic losses to farmers. Therefore, in order to produce enough grain and reduce economic losses, brown planthopper must be tre...

Claims

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Application Information

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IPC IPC(8): A01N47/40A01P7/04A01N43/707
Inventor 李建洪张小磊廖逊张淑真毛凯凯何顺万虎
Owner HUAZHONG AGRICULTURAL UNIVERSITY
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