Compound pesticidal composition containing chlorpyrifos and methoxyfenozide and application thereof

A technology of methoxyfenozide and an insecticidal composition, which is applied in the field of pesticides, can solve the problems that the effect of pest control is reduced, the insecticidal composition of chlorpyrifos and methoxyfenozide has not been found, and the like, so as to reduce labor, Overcome the effects of pest resistance and resistance enhancement

Inactive Publication Date: 2014-02-12
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, the resistance of diamondback moth, cotton bollworm and thrips is gradually increasing under the current long-term application conditions, and the effect of single-dose pesticides on pest control is gradually decreasing.
The inventor 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 chlorpyrifos and methoxyfenozide has been found.

Method used

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  • Compound pesticidal composition containing chlorpyrifos and methoxyfenozide and application thereof
  • Compound pesticidal composition containing chlorpyrifos and methoxyfenozide and application thereof
  • Compound pesticidal composition containing chlorpyrifos and methoxyfenozide and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Chlorpyrifos and methoxyfenozide were weighed and prepared in different proportions by conventional preparation methods to prepare chlorpyrifos-methoxyfenozide EC with a main active ingredient weight percentage of 30%. See Tables 1 and 2 for specific ratios.

[0023] The indoor synergistic bioassay was carried out by the leaf dipping method, and the resistant Plutella xylostella was selected as the target pest. Each treatment was repeated 3 times, and 60 heads were treated at each concentration. The toxicological regression equation and lethality of the resistant Plutella xylostella were calculated by the probability value method Medium 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:

[0024] Table 1 Toxicity determination of chlorpyrifos and methoxyfenozide compound and single dose against resistant Plutella xylostella

[0025]

[0026] It can be seen from Table 1 th...

Embodiment 2

[0032] Weigh 5g chlorpyrifos, 50g methoxyfenozide, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 ＃ 2g, Nongru 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 emulsion, and mix at high speed to form a chlorpyrifos-methoxyfenozide water emulsion with a main active ingredient of 55% by weight.

Embodiment 3

[0034] Weigh 2g of chlorpyrifos, 18g of methoxyfenozide, 6g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether phosphate, and 33 grams of agricultural milk. ＃ 2g, Nongru 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 form a chlorpyrifos·methoxyfenozide microemulsion with a main active ingredient of 20% by weight.

[0035] Example 3 is carried out to prevent and control vegetables Plutella xylostella drug efficacy test, according to the amount of medication in Table 3, 20g, 30g per mu of land, the contrast agent is 40% methoxyfenozide EC (emulsifiable concentrate) 30g / mu and 15% chlorpyrifos EC 30g / mu, use clean water as blank control, check the results of 3 days, 7 days, 14 days and 28 days after treatment, the treatment results are shown in Table 3:

[0036] Table 3: Field test results of chlorpyrifos-methoxyfenozide c...

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Abstract

The invention discloses a compound pesticidal composition containing chlorpyrifos and methoxyfenozide and application thereof. The pesticidal composition uses chlorpyrifos and methoxyfenozide as main effective components, wherein the weight ratio of the chlorpyrifos to the methoxyfenozide is (0.1-80):(0.5-80). The pesticidal composition can generate higher synergic effect, overcomes and postpones the drug resistance of pests, has the advantages of high pesticidal speed and long duration time, lowers the pesticide cost, and has obviously higher preventing and treating effects than a single agent. The pesticidal composition can be used for preventing and treating Homoptera, Lepidoptera, Hemiptera, Coleoptera, Hymenoptera, Diptera, Thysanoptera and acarid pests on crops, especially has specially good effect on preventing and treating rice fulgorids and aphids in Homoptera, cabbage moths, cotton bollworms and asparagus caterpillars in Lepidoptera, thrips in Thysanoptera, acarids and other pests, and has obviously higher effect than a single agent.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a compound insecticidal composition containing chlorpyrifos and methoxyfenozide and its application. Background technique [0002] Chlorpyrifos (chlorpyrifos), chemical name: O,O-diethyl-O-(3,5,6-trichloro-2-pyridyl) phosphorothioate; O,O-diethyl-O-(3,5 ,6-trichloro-2-pyridyl) phos-phorothioate. [0003] It is a moderately toxic insecticide. Rat Acute Oral LD 50 163mg / kg, acute percutaneous LD 50 >2g / kg; mildly irritating to the eyes of test animals, and obviously irritating to the skin, and prolonged and repeated contact may cause burns. The subacute oral no-effect dose for rats is 0.03 mg / kg, and the chronic oral no-effect dose is 0.1 mg / kg. The chronic oral ineffective dose for dogs is 0.03mg / kg. No teratogenic, mutagenic or carcinogenic effects were observed at the test dose. The maximum allowable concentration in indoor air is (TLV) 0.2mg / m. Highly toxic t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N57/16A01N37/40A01P7/02A01P7/04
Inventor 齐武陈文明杨瑞成高瑞花苑志军
Owner NANJING HUAZHOU PHARMA
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