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Composite insecticidal composition containing thiamethoxam and thiacloprid and application thereof

An insecticidal composition and technology for thiacloprid, which are applied in the field of pesticides containing heterocyclic compounds, can solve the problems that the effect of pest control is decreased, the insecticidal composition of thiamethoxam and thiacloprid has not been found, and the like, and can reduce the prevention and control of thiacloprid. Labor, improve control effect, reduce production and use costs

Inactive Publication Date: 2014-03-12
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, under the current long-term use of pesticides, pests such as brown planthoppers and aphids have gradually increased their resistance, and the effect of single-dose pesticides on pest control has gradually declined.
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, no insecticidal composition related to thiamethoxam and thiacloprid has been found.

Method used

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  • Composite insecticidal composition containing thiamethoxam and thiacloprid and application thereof
  • Composite insecticidal composition containing thiamethoxam and thiacloprid and application thereof
  • Composite insecticidal composition containing thiamethoxam and thiacloprid and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh 30 g of thiamethoxam and thiacloprid, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and vegetable oil to 100 g. Put the above raw materials into a mixing tank according to the conventional method for preparing emulsifiable concentrate, and mix them to prepare thiamethoxam·thiacloprid emulsifiable concentrate with a main active ingredient weight percentage of 30%. The specific ratios of thiamethoxam and thiacloprid are shown in Tables 1 and 2.

[0024] The rice stem dipping method was used for indoor synergistic bioassay, and the resistant brown planthopper was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. Concentration LC 50 , with LC 50 The co-toxicity coefficient was calculated according to Sun Yunpei method, and the results are shown in Table 1:

[0025] Table 1 Toxicity determination of thiamethoxam and thiacloprid compound and single-dose resistant ...

Embodiment 2

[0032] Embodiment 2: Weigh 50g thiamethoxam, 5g thiacloprid, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 ＃ 2g, emulsifier 600 # 1g, mineral spirits 13g, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing water-based emulsions and mix at high speed to prepare thiamethoxam·thiacloprid water-based emulsions with a main active ingredient weight percentage of 55%.

Embodiment 3

[0033] Embodiment 3: Weigh 18g thiamethoxam, 2g thiacloprid, 6g calcium dodecylbenzenesulfonate, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 ＃ 2g, emulsifier 600 # 1g, cyclohexanone 10g, add water to 100g. Put the above raw materials into a mixing tank according to the conventional method for preparing microemulsions and mix them to prepare thiamethoxam·thiacloprid microemulsions with a main active ingredient weight percentage of 20%.

[0034] Example 3 was carried out to prevent and control rice brown planthopper efficacy test, the control agent was 20% thiacloprid WP (wettable powder) and 20% thiamethoxam WP (wettable powder), diluted according to the dilution factor in Table 3, the medicine After checking the results of 3 days and 7 days, the processing results are shown in Table 3:

[0035] Table 3: Field test results of thiamethoxam-thiacloprid compound against rice brown planthopper

[0036]

[0037] Field drug efficacy results showed t...

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Abstract

The invention discloses a composite insecticidal composition containing thiamethoxam and thiacloprid and application thereof. The insecticidal composition comprises main effective components of thiamethoxam and thiacloprid in a weight ratio of 0.1-80:0.5-80. The insecticidal composition can produce high synergetic effects, overcomes and delays the insect resistance, and has high insecticidal speed, long effective period, reduced cost of medication and control effect obvious higher than that of a single dose. The invention can control hemipteran pests of crops, especially can be used for the control of brown planthopper and aphids, and the effect is obviously higher than that of the single dose.

Description

technical field [0001] The invention belongs to the field of pesticides containing heterocyclic compounds, and in particular relates to a compound insecticidal composition containing thiamethoxam and thiacloprid and its application. Background technique [0002] Thiamethoxam (Thiamethoxam), chemical name: 3-(2-chloro-1,3-thiazol-5-ylmethyl)-5-methyl-1,3,5-oxadiazin-4-yl fork ( nitro)amine. [0003] Thiamethoxam is a neonicotinoid insecticide. The mechanism of action of thiamethoxam is similar to that of imidacloprid. It can selectively inhibit the nicotinic acid acetylcholinesterase receptor in the insect central nervous system, thereby blocking the normal conduction of the insect central nervous system, causing pests Dies when a paralyzing machine appears. [0004] Thiamethoxam not only has contact killing, stomach poisoning, and systemic activity, but also has higher activity, better safety, wider insecticidal spectrum, fast action speed, and long-lasting effect. Better...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N47/40A01P7/04
Inventor 齐武陈文明胡明华高瑞花刘德友
Owner NANJING HUAZHOU PHARMA
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