Nitenpyram and chlorpyrifos methyl contained synergia insecticidal composite and application thereof

A technology of chlorpyrifos methyl and an insecticidal composition, applied in the field of pesticides, can solve the problems such as the insecticidal composition of nitenpyram and chlorpyrifos methyl, which can reduce the amount of drug in the field, reduce the production and use costs, and improve the The effect of the control effect

Inactive Publication Date: 2011-04-20
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventors have found through research that the synergistic compounding of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, there is no insecticidal composition of nitenpyram and chlorpyrifos-methyl.

Method used

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  • Nitenpyram and chlorpyrifos methyl contained synergia insecticidal composite and application thereof
  • Nitenpyram and chlorpyrifos methyl contained synergia insecticidal composite and application thereof
  • Nitenpyram and chlorpyrifos methyl contained synergia insecticidal composite and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Nitenpyram and chlorpyrifos-methyl were weighed and prepared in different proportions by conventional preparation methods to prepare nitenpyram-chlorpyrifos-methyl EC with an active ingredient mass percentage of 30%. See Tables 1 and 2 for specific ratios.

[0022] Indoor synergistic bioassay was carried out by rice stem dipping method, and the resistant rice planthopper was selected as the target pest. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0023] Table 1 Toxicity determination and co-toxicity coefficient of nitenpyram, chlorpyrifos-methyl and their compound samples to rice brown planthopper

[0024]

[0025] The data in the table shows that the mixture of nitenpyram and chlorpyrifos-methyl has a synergistic effect on rice brown planthopper, and the co-toxicity coefficients of the three ratios listed in the table are all far greater than 120, so nitenpyram and chlorpyrifos-methyl Mixing has a significant synergistic effect.

...

Embodiment 2

[0039] Weigh 0.5 g of nitenpyram and 10 g of chlorpyrifos-methyl and dissolve in 8 g of xylene, then add 1 g of ethylene glycol and 5 g of disodium alkylphenol polyoxyethylene ether sulfosuccinate, and stir evenly. Slowly pour the above solution into the remaining amount of water, and fully stir to form a 10.5% nitenpyram·chlorpyrifos-methyl emulsion in water.

Embodiment 3

[0041] Weigh 6g of nitenpyram and 4g of chlorpyrifos-methyl and dissolve in 8g of xylene, then add 1g of ethylene glycol and 5g of disodium alkylphenol polyoxyethylene ether sulfosuccinate, and stir evenly. Slowly pour the above solution into the remaining amount of water and fully stir to form a 10% nitenpyram·chlorpyrifos-methyl emulsion in water.

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Abstract

The invention discloses a nitenpyram and chlorpyrifos methyl contained synergia insecticidal composite and an application thereof. In the insecticidal composite, nitenpyram and chlorpyrifos methyl are taken as active constituents, wherein the weight ratio of the nitenpyram and chlorpyrifos methyl is (0.1-80):(0.5-80). In the insecticidal composite, high synergism can be generated, drug resistance of injurious insect is overcome and delayed, prevention and control spectrum are expanded, the insecticidal speed is rapid, and the medication cost is reduced and toxicity is alleviated. The nitenpyram and chlorpyrifos methyl contained synergia insecticidal composite can prevent and control hemiptera injurious insects on crops, is particularly used for preventing and controlling plant hoppers and wheat aphids of rice, and the effect of the composite is obviously better than that of siple dosage.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to an insecticidal composition with nitenpyram and chlorpyrifos-methyl as main active ingredients and its application. Background technique [0002] Nitenpyram is a neonicotinoid insecticide with the chemical name (E)N-(6-chloro-3-pyridylmethyl)-N-ethyl-N′-methyl-2- Nitroethylenediamine. The structural formula is as follows: [0003] [0004] The drug has a wide insecticidal spectrum and is widely used in agriculture and horticulture to control aphids, leafhoppers, thrips, planthoppers and other hemiptera pests. It has low dosage, low toxicity, long-lasting drug effect, no harm to crops, and is safe to use; The drug acts on nicotinic acetylcholine receptors in a unique way, and pests are not easy to develop resistance. It has excellent systemic and osmotic effects, and has a broad market prospect, but its market price is relatively high. [0005] Chlorpyrifos-methyl (Chlorpyrifos-met...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/16A01N43/40A01P7/04
Inventor 齐武张春华姚明德陈叶青杨瑞成
Owner NANJING HUAZHOU PHARMA
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