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Insecticide taking thiamethoxam and lambda-cyhalothrin compound as active component and application thereof

A technology of lambda-cyhalothrin and active ingredients, applied in the direction of insecticides, applications, biocides, etc., can solve the problems of short effective use period and increase the effective use period of insecticides, etc.

Pending Publication Date: 2022-03-22
ZHEJIANG LONGYOU DONGFANG ANASAKE CROP TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, although these two insecticides have insecticidal effects, their effective use period is relatively short. For this reason, the present invention proposes a compound compound of thiamethoxam and lambda-cyhalothrin as an active ingredient. Insecticides, so as to ensure the insecticidal effect and increase the effective use cycle of insecticides

Method used

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  • Insecticide taking thiamethoxam and lambda-cyhalothrin compound as active component and application thereof
  • Insecticide taking thiamethoxam and lambda-cyhalothrin compound as active component and application thereof
  • Insecticide taking thiamethoxam and lambda-cyhalothrin compound as active component and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: Screening of indoor compound formula of thiamethoxam and lambda-cyhalothrin against wheat aphids

[0021] Get 98.1% of the former drug of thiamethoxam and 96.5% of the former drug of lambda-cyhalothrin respectively, dissolve the former drug of thiamethoxam and lambda-cyhalothrin with DMF, prepare the mother liquor of 5000mg / L, and then use Distilled water containing 0.1% Tween-80 was prepared into the dose required for the test. Then, according to the set ratios of the 5 groups, two single doses were pipetted in proportion to prepare 5 groups of mixed mother liquors. Dilute and prepare 5 serial concentrations respectively for later use.

[0022] According to the toxicological test results of the single-dose preliminary test, five representative ratios of thiamethoxam / beta-cyhalothrin were selected, 5.3 / 5.7, 5.8 / 5.2, 6.3 / 4.7, 6.8 / 4.2, and 7.3 / 4.7, respectively.

[0023] Methods The Potter spraying method was used to select the leaves infested with wheat aphi...

Embodiment 2

[0029] Example 2: Determination of safety of insecticides with thiamethoxam and lambda-cyhalothrin compounded as active ingredients at a concentration of 15% on wheat

[0030] Take 10 parts of thiamethoxam, 5 parts of lambda-cyhalothrin, 0.5 part of defoamer, 0.5 part of preservative, 0.5 part of wetting and dispersing agent, 0.5 part of surfactant, 0.5 part of antifreeze, 0.5 part of thickener agent, 0.5 parts of stabilizer, 0.5 parts of solubilizer and 81 parts of deionized water. The raw materials of the above-mentioned components are placed in the preparation kettle according to the proportion and fully mixed and stirred, and the stirring time is 0.5-2 hours. After mixing and stirring, it is fully ground by a colloid mill, and the grinding time is 0.5-2 hours. Then, it is fully finely ground by a sand mill, and the fine grinding time is 0.5h to 1h, and the compounded thiamethoxam and lambda-cyhalothrin are prepared as an insecticide with a concentration of 15% as active i...

Embodiment 3

[0037] Example 3: Field efficacy test of an insecticide with a compound of thiamethoxam and lambda-cyhalothrin as the active ingredient at a concentration of 15% to control wheat aphids

[0038] Take 15% insecticide, 30% thiamethoxam suspension concentrate and 10% lambda-cyhalothrin suspension concentrate as the test for testing Medicament, wheat was selected as the test plant crop. The specific operation steps are as follows:

[0039] (1) Dilute the 15% insecticide compounded with thiamethoxam and lambda-cyhalothrin as the active ingredient with tap water, and set the dosage of the active ingredient and preparation to 9.90g a.i. / hm2, 3mL / mu; 16.50ga.i. / hm2, 5mL / mu; 23.10g a.i. / hm2, 7mL / mu.

[0040](2) Spray the whole plant evenly on the wheat crops in the field, and spray evenly on the treatment area one by one from low concentration to high concentration, so as to ensure no heavy spraying or missing spraying. Wash the sprayer with clean water before spraying between diff...

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Abstract

The invention relates to the field of insecticides, and particularly discloses an insecticide with thiamethoxam and lambda-cyhalothrin compounded as active ingredients and application of the insecticide, the insecticide is characterized in that thiamethoxam (CAS: 153719-23-4) and lambda-cyhalothrin (CAS: 91465-08-6) are used as the active ingredients, and the effective service cycle of the insecticide is prolonged by adding corresponding auxiliaries; the auxiliary agent comprises one or more of a defoaming agent, a preservative, a wetting dispersant, a surfactant, a solubilizer, an anti-freezing agent and a thickening agent; according to the invention, the effective service cycle of the product is effectively prolonged while the insecticidal effect is ensured, so that the yield of crops is correspondingly increased, the dosage is reduced, and the cost is reduced.

Description

Technical field: [0001] The invention relates to the field of insecticides, and mainly relates to an insecticide compounded with thiamethoxam and lambda-cyhalothrin as active ingredients and an application thereof. Background technique: [0002] Thiamethoxam (CAS: 153719-23-4) is a second-generation neonicotinoid insecticide with high efficiency and low toxicity, and its chemical formula is C 8 h 10 ClN 5 o 3 S, has stomach toxicity, contact and systemic activity to pests, and is used for foliar spray and soil irrigation and root treatment. It is quickly systemically sucked after application and transmitted to all parts of the plant, and has good control effect on piercing-sucking pests such as aphids, planthoppers, leafhoppers, and whiteflies. [0003] Beta-cyhalothrin (CAS: 91465-08-6), as an insecticide, has the advantages of broad insecticidal spectrum, high activity, rapid drug effect, and resistance to rain after spraying, but it is easy to use for a long time. It...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N53/08A01P7/04
CPCA01N51/00A01N53/00
Inventor 龚国华沈华姚伟彬何雪华季东鑫郑小三龚晓晔邵阳
Owner ZHEJIANG LONGYOU DONGFANG ANASAKE CROP TECHCO
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