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Synergistic compound pesticide contg. flufenoxuron

A technology of insecticidal composition, flubendron, applied in biocides, animal repellents, plant growth regulators, etc. Pest control effect, short duration of organophosphorus insecticides and other problems, to achieve the effect of reducing the amount of pesticides used in the field, reducing environmental pollution and pesticide residues, and reducing labor costs for prevention and control

Inactive Publication Date: 2007-02-14
NANJING REDSUN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, organophosphorus insecticides have a short duration of action and have low insecticidal activity against Lepidoptera larvae above the 2nd instar
Therefore, the best pest control effect cannot be achieved by using single-dose varieties alone.
[0005] The synergistic combination of pesticides is an effective measure to expand the control spectrum and improve the control effect. So far, no insecticidal combination of flubenzuron and organophosphorus insecticides has been found.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Weigh 2 g of flubenzuron, 30 g of chlorpyrifos, 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 32% flubendron·chlorpyrifos EC.

[0019] Indoor synergistic bioassay was carried out, rice leaf roller was selected as the target pest, 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:

[0020] Concentration (ppm)

Number of test insects (head)

Average number of residual insects (head)

Mean Adjusted Mortality Rate (%)

6.25

30

23.0

17.86

12.5

30

21.0

25.00

25

30

18.3

25.00

50

30

11.5

58.93

100

30

4.0

85.71

CK

...

Embodiment 2

[0025] Weigh 2 g of flubenzuron, 30 g of acephate, 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 32% flubendron·chlorpyrifos EC.

[0026] Carry out indoor synergistic bioassay, select beet armyworm as the target pest, repeat 3 times for each treatment, treat 30 head per concentration, use LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0027] 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

2.3

92.14

CK

30

28.0

/

[...

Embodiment 3

[0032] Weigh 2 g of flubenzuron, 40 g of phoxim, 5 g of calcium dodecylbenzenesulfonate, 2 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 42% flubenzuron · phoxim EC.

[0033] Indoor synergistic bioassay was carried out, rice leaf roller was selected as the target pest, 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:

[0034] Concentration (ppm)

Number of test insects (head)

Average number of residual insects (head)

Average death rate (%)

Mean Adjusted Mortality Rate (%)

6.25

30

24.3

13.57

12.5

30

20.5

26.79

25

30

15.0

46.43

50

30

10.8

61.79

100

30

4.0

...

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PUM

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Abstract

A synergistic composite insecticide for preventing and treating beet noctuid and rice borer contains flufenoxuron, organophosphorus insecticides, assistant and excipient.

Description

1. Technical field [0001] The invention relates to an insecticidal composition and its use, in particular to a kind of insecticidal composition with flubendron and organophosphorus insecticides as main active ingredients and its application. 2. Technical Background [0002] Flufenoxuron (flufenoxuron), chemical name: 1-[4-(2-chloro-a,a,a-trifluoro-p-tolyloxy)-2-fluorophenyl]-3-(2,6-di Fluorobenzoyl) urea belongs to benzoyl urea insect growth regulator, inhibits insect chitin synthesis, can treat both insects and mites, has high activity and long-lasting effect. With contact and stomach poisoning effect, no systemic effect. By inhibiting the formation of chitin, the pests cannot molt and metamorphose normally, especially the control of the normal molt and development of larvae, to achieve the purpose of killing insects. The agent also has good foliar retention. It can be used to control mites and insects in immature stages of citrus, cotton, vegetables, soybeans, fruit tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/28
Inventor 杨寿海王琼林王小平齐武孔少华
Owner NANJING REDSUN
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