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Synergistic compound pesticide contg. trans-cypermethrin and benzoyl urea

A technology of trans-cypermethrin and insecticidal composition, applied in the field of insecticidal composition, can solve problems such as poor control effect of explosive pests, no insecticidal composition has been found, and influence on overall pest control, etc. The effect of reducing environmental pollution and pesticide residues, and reducing labor costs for prevention and control

Inactive Publication Date: 2007-02-14
NANJING NO 1 PESTICIDE GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the quick-acting performance of benzoylurea insecticides is slower than that of pyrethroids and organophosphorus insecticides, which affects the overall control of pests, especially for the control of explosive pests.
[0006] The synergistic combination of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no insecticidal composition related to trans-cypermethrin and benzoylurea has been found.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 1 g of trans-cypermethrin, 30 g of chlorfluazuron, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and xylene to 100 g. The above raw materials were put into a mixing tank according to the conventional method for preparing EC and mixed to form a preparation of 31% trans-cypermethrin·chlorfluazuron EC.

[0025] Indoor synergistic bioassays were carried out, rice stem borer was selected as the target pest, each treatment was repeated 3 times, and 30 heads were treated at each concentration, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0026] Concentration (ppm)

Number of test insects (head)

Average number of residual insects (head)

Mean Adjusted Mortality Rate (%)

6.25

30

23.5

16.07

12.5

30

21.0

25.00

25

30

17.0

39.29

50

30

12.3

56.42

100

30

2...

Embodiment 2

[0031] Weigh 2 g of trans-cypermethrin, 30 g of hexaflumuron, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and xylene to 100 g. The above raw materials were put into a mixing tank according to the conventional method for preparing EC and mixed to form a preparation of 32% trans-cypermethrin · hexaflumuron EC.

[0032] Indoor synergistic bioassay was carried out, rice stem borer and rice stem borer were selected as target pests, each treatment was repeated 3 times, 30 heads were treated at each concentration, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0033] Concentration (ppm)

Number of test insects (head)

Average number of residual insects (head)

Mean Adjusted Mortality Rate (%)

6.25

30

23.0

7.14

12.5

30

18.3

35.00

25

30

13.5

51.79

50

30

7.5

73.21

100

30...

Embodiment 3

[0038] Weigh 2 g of trans-cypermethrin, 33 g of diflubenzuron, 4 g of calcium dodecylbenzenesulfonate, 3 g of phenethylphenol polyoxyethylene ether, and xylene to 100 g. Put the above raw materials into a mixing tank according to the conventional method for preparing EC and mix to form a preparation of 35% trans-cypermethrin · diflubenzuron EC.

[0039] Indoor synergistic bioassay was carried out, rice stem borer and rice stem borer were selected as target pests, each treatment was repeated 3 times, 30 heads were treated at each concentration, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0040] Concentration (ppm)

Number of test insects (head)

Average number of residual insects (head)

Mean Adjusted Mortality Rate (%)

6.25

30

21.0

7.86

12.5

30

16.3

37.00

25

30

14.5

50.68

50

30

6.5

76.35

100

30

...

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PUM

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Abstract

A synergistic composite insecticide for preventing and treating rice borer contains trans-cypermethrin, benzoylurea, assistant and excipient.

Description

1. Technical field [0001] The invention relates to an insecticidal composition and its application, in particular to an insecticidal composition with trans-cypermethrin and benzoylureas as main active ingredients and its application. 2. Background technology [0002] Trans-cypermethrin (theta-cypermethrin), chemical name: (IR trans) S and (IS trans) R-α-cyano-(3-phenoxybenzyl)-3-(2,2-dichloroethylene base)-2,2-dimethylcyclopropanecarboxylate. [0003] Trans-cypermethrin is a widely used pyrethroid insecticide. It is a high-efficiency broad-spectrum insecticide, an insecticide with contact and stomach poisoning effects, and controls many pests. It is particularly effective against Coleoptera and Lepidoptera. The pests mainly used for the control include Meadowsweed, Rice Leaf Roller, Stem Borer, Stem Borer, Black-tailed Leafhopper, Planthopper, Stinkbug, Cutworm, Aphid , corn borer, cotton bollworm, cotton red bollworm, inchworm, thrips, whitefly, flea beetle, cabbage armyw...

Claims

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Application Information

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IPC IPC(8): A01N53/08
Inventor 杨寿海齐武赵维桢刘金锁王小平
Owner NANJING NO 1 PESTICIDE GRP
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