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Dimehypo-containing insecticidal composition and application thereof

A technology of insecticidal composition and dimehypo, applied in the field of insecticidal composition containing dimehypo, can solve problems such as difficult to control diseases and insect pests, achieve the effects of overcoming and pest resistance, reducing costs, and reducing pollution

Pending Publication Date: 2022-06-24
赤天化科技集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In terms of process preparation, environmentally friendly traditional formulations such as emulsifiable concentrate have relatively high control effects on pests and diseases due to their relatively high biological activity. However, with the introduction of national policies and large-scale restrictions on the market, other formulations have to be used , but due to the limitation of the water-based preparation itself, the drug efficacy can achieve the effect of the traditional emulsifiable concentrate preparation, and the amount of use must be increased to achieve the corresponding control effect. Excessive use will cause the target pests to have certain resistance, and it is difficult to control the corresponding For diseases and insect pests, choosing a suitable high-efficiency and environmentally friendly dosage form can effectively improve the biological activity of active ingredients, enhance the penetration and conduction of drugs, achieve energy saving and emission reduction, and relieve environmental pressure.

Method used

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  • Dimehypo-containing insecticidal composition and application thereof
  • Dimehypo-containing insecticidal composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Preparation of Rubescens rubescens extract: 1kg of Rubescens hay was sequentially extracted with 10 times ethanol solution according to (95%, 75%, 50%, 25%, 5%) gradient extraction method, soaked for 2h, refluxed for 3 times, each time For 2 h, the extracts were combined, filtered, concentrated and evaporated to dryness, then extracted with ethyl acetate for three times, concentrated and dried under reduced pressure to obtain Rubescens rubescens extract.

Embodiment 2

[0024] An insecticidal composition containing insecticidal bisulfite, comprising the following components: 5% of effective components, 10% of emulsifier, 0.3% of acrylate, 3% of thickener, and methyl oleate supplemented to 100%;

[0025] The effective components include a first component, a second component and a third component, the first component is insecticidal bisulfite, the second component is imidacloprid, thiamethoxam, and the third component is the extraction of Rubescens The weight ratio of the first component, the second component and the third component is 1:1:3, the mass ratio of the imidacloprid and thiamethoxam is 2:1; the emulsifier is polycarboxylate Acid fat, alcohol ether, succinic acid ester are formed with weight portion 1:1:2; Described thickener is attapulgite and fumed silica, and the weight ratio of described attapulgite and fumed silica is 2: 1.

Embodiment 3

[0027] An insecticidal composition containing insecticidal bisulfite, which is composed of the following components: 10% of effective components, 12% of emulsifier, 0.5% of acrylate, 3.5% of thickener, and methyl oleate supplemented to 100%;

[0028] The effective components include a first component, a second component and a third component, the first component is insecticidal bisulfite, the second component is thiamethoxam, clothianidin, and the third component is dongling Grass extract, the weight ratio of the first component, the second component, and the third component is 5:10:4; the emulsifier is polycarboxylate, alcohol ether, and succinate in parts by weight 1 1:2 composition, the mass ratio of described thiamethoxam and clothianidin is 1:1; Described thickener is attapulgite and fumed silica, the weight of described attapulgite and fumed silica The ratio is 2:1.

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Abstract

The invention discloses an insecticidal composition containing dimehypo and a preparation method of the insecticidal composition. One or more of dimehypo, imidacloprid, thiamethoxam, clothianidin and dinotefuran and effective components with different action mechanisms of a rabdosia rubescens extract are adopted, polycarboxylic acid ester, alcohol ether and succinate in a specific proportion are adopted as emulsifiers, acrylate is adopted as a dispersing agent, attapulgite and fumed silica are adopted as thickening agents, and the effective components are mixed uniformly. The dimehypo-containing insecticidal composition prepared by taking dimehypo as a main raw material and methyl oleate as a dispersion medium and taking methyl oleate as an auxiliary agent has an obvious synergistic interaction effect, particularly has a good control effect on spodoptera frugiperda, is long in control time, beneficial to overcoming and delaying generation of pest resistance to drugs, capable of reducing the dosage, environmentally friendly, economical, good in safety, excellent in performance, high in suspension rate and free of toxic and side effects. And the storage stability is good.

Description

technical field [0001] The present invention relates to the technical field of pesticides, in particular to an insecticidal composition and application of an insecticidal compound. Background technique [0002] Spodoptera frugiperda, also known as Fall Armyworm, is an omnivorous pest native to tropical and subtropical America, widely distributed in the Americas, and is an important agricultural pest. [0003] Spodoptera frugiperda has the following characteristics: wide suitable area; fast migration speed and long distance; strong reproductive ability; wide range of host plants; difficult to kill. Pyrethroids and emamectin are widely used in the control of Spodoptera frugiperda. However, long-term extensive use will inevitably lead to the gradual increase in the resistance of Spodoptera frugiperda, increasing the difficulty of prevention and control. [0004] Therefore, it is an urgent problem for those skilled in the art to find a new pharmaceutical composition with low d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/22A01N41/02A01N51/00A01P7/00A01P7/04
CPCA01N65/00A01N65/22A01N41/02A01N51/00Y02A50/30
Inventor 祝春华祝伟倩何孟轲祝孟龙何孟夏
Owner 赤天化科技集团有限公司