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Synergistic pesticide combination containing nitenpyram and pyridalyl and application of combination

An insecticidal composition and technology containing nitenpyram, applied in the field of pesticides, can solve problems such as undiscovered resistant Hemiptera pests, and achieve the effects of overcoming pest resistance, reducing drug costs, and high synergistic effects

Active Publication Date: 2013-09-18
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inventor found through research that the compounding of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no compound insecticidal composition related to nitenpyram and acetamiprop has been found to control resistant hemiptera. Order Pests

Method used

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  • Synergistic pesticide combination containing nitenpyram and pyridalyl and application of combination
  • Synergistic pesticide combination containing nitenpyram and pyridalyl and application of combination
  • Synergistic pesticide combination containing nitenpyram and pyridalyl and application of combination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weighing nitenpyram and acetamiprop were prepared in different proportions according to conventional preparation methods to prepare nitenpyram and acetamiprop emulsifiable concentrate with an active ingredient mass percentage of 30%. The specific proportions are shown in Tables 1 and 2. .

[0024] 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:

[0025] Table 1. Indoor toxicity determination of the Nitenpyram and Pyridalem composition and its single dose against resistant rice planthopper:

[0026]

potion

Virulence regression curve

LC 50 (mg / L)

Measured virulence index

count ATI

theoretical virulence

Index TTI

co-toxicity coefficient

pyridalyl A

Y=1.83033+1.81687X

15.536

100

/

/

...

Embodiment 2

[0041] Weigh 0.5 g of nitenpyram and 10 g of pyridalil 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. The above solution was slowly poured into the remaining amount of water to a total weight of 100 g, and fully stirred to prepare a 10.5% nitenpyram·pyridalipal water emulsion.

Embodiment 3

[0043] Weigh 1g of nitenpyram and 10g of pyridalem 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 prepare 11% nitenpyram·pyridalipr water emulsion.

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Abstract

The invention discloses a synergistic pesticide combination containing nitenpyram and pyridalyl and an application of the combination. The synergistic pesticide combination uses nitenpyram and pyridalyl as main active components, wherein the weight ratio of the nitenpyram to the pyridalyl is (0.1-80):(0.2-70). The pesticide combination can produce higher synergistic effect, overcomes and delays pesticide resistance of pests, has high pest control speed and long persisting efficacy and lowers the application cost. The invention can be used to prevent and control paddy delphacidae, aleyrodidae, aphides and other hemipteran pests generated on crops, and the resulting effect is apparently higher than that obtained by using a single agent.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a synergistic insecticidal composition with nitenpyram and acetamiprop as main active ingredients and an application thereof. 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 prevent and control aphids, leafhoppers, thrips, planthoppers and other pests. It has low toxicity, long-lasting drug effect, no harm to crops, and is safe to use; Acetylcholine receptor has a unique way, pests are not easy to develop resistance, and have excellent systemic and osmotic effects. [0005] Pyridalyl, chemical name 2,6-dichloro-4-(3,3-dichloroallyloxy)phenyl 3-[5-(trifluoromethyl-2-hydroxypyridine)propane base] et...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N43/40A01P7/04
Inventor 杨寿海赵富明卢玉刚齐武姚明德陈文明
Owner NANJING HUAZHOU PHARMA