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Synergy insecticidal composition containing dinotefuran and pyrethrin pesticide and purpose thereof

A technology for pyrethroids and pyrethroids is applied in the field of synergistic insecticidal compositions, and can solve the problems of decline, no effective preparations for homopteran pests, etc.

Inactive Publication Date: 2012-04-18
NANJING HUAZHOU PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, the resistance of Homopteran pests is gradually increasing, and the effect of single-dose pesticides on pest control is gradually decreasing. There is no effective preparation for the control of Homopteran pests.

Method used

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  • Synergy insecticidal composition containing dinotefuran and pyrethrin pesticide and purpose thereof
  • Synergy insecticidal composition containing dinotefuran and pyrethrin pesticide and purpose thereof
  • Synergy insecticidal composition containing dinotefuran and pyrethrin pesticide and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Dinotefuran and beta-cypermethrin were weighed, and dinotefuran and beta-cypermethrin were prepared in different proportions by conventional preparation methods to prepare dinotefuran and beta-cypermethrin emulsifiable concentrate with a weight percentage of 40%. The specific proportions are shown in Tables 1 and 2.

[0020] The indoor synergistic bioassay was carried out by dipping leaves and insects, and the resistant cotton aphid was selected as the target pest. Each treatment was repeated 3 times, and the LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0021] Table 1 Indoor toxicity test of dinotefuran and beta-cypermethrin synergistic insecticidal composition and its single dose against cotton aphid

[0022]

[0023] The data in the table shows that dinotefuran and beta-cypermethrin have a synergistic effect on cotton aphids after being mixed, and the co-toxicity coefficients of the three proportions listed in the table are all gr...

Embodiment 2

[0029] Weigh 2g dinotefuran, 8g etofenproxil, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 # (Alkylaryl polyoxypropylene polyoxyethylene ether) 2g, alkylphenol polyoxyethylene ether 1g, vegetable oil 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 form dinotefuran-etoproxil water-based emulsions with a main active ingredient of 10% by weight.

Embodiment 3

[0031] Weigh 8g dinotefuran, 2g etofenproxil, 8g sodium lignosulfonate, 2g sodium lauryl sulfate, 5g ammonium sulfate, 5g polyvinyl alcohol, 2g borax, 68g kaolin, and disperse the above raw materials into granules by water The method is used to prepare dinotefuran-etoproxil water-dispersible granules with a main active ingredient weight percentage of 10%.

[0032] Adopt embodiment 2 and 3, according to each mu land medication 10g, 20g, 30g medicament respectively, contrast medicament is 10% etofenproxil WP (wettable powder) 30g / mu, 10% dinotefuran AS (aqua) 30g / mu. Mu, the water consumption per mu is 30kg, check the results in 4 days, 10 days, 15 days, 20 days, and 30 days after spraying, and process them. The results are shown in Table 3:

[0033] Table 3: Field test results of the synergistic insecticidal composition of dinotefuran and etofenprox against cotton aphids

[0034]

[0035] It can be seen from the above table that the compound dinotefuran·etoproxil is more ef...

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PUM

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Abstract

The invention relates to a synergy insecticidal composition containing dinotefuran and pyrethrin pesticide and purpose thereof. The synergy insecticidal composition contains main effective components of dinotefuran and pyrethrin pesticides. The pyrethrin is one selected from efficient cypermethrin, cyhalothrin, cyhalothrin, bifenthrin, alphacypermethrin, deltamethrin, fenvalerate, cypermethrin, fenpropathrin, silafluofen, efficient cyhalothrin and ethofenprox. The dinotefuran and pyrethrin are in a mass ratio of 0.1-80:0.1-50. The insecticidal composition can generate efficient synergism, overcome and delay resistance of insects and expand control spectrum, and has fast insecticidal speed and reduced drug usage cost. The insecticidal composition of the invention can be used for controlling homoptera insects of aphid and whitefly, etc. and has an effect obvious better than that of a single dose.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a synergistic insecticidal composition containing dinotefuran and pyrethroid insecticides and an application thereof. Background technique [0002] Dinotefuran, chemical name: 1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine, white crystal, melting point 107.5°C, industrial product 94.5~101.5°C, vapor pressure <1.7×10 -6 pa (30°C), density 1.33 (25°C). The solubility is 40g / L in water, hardly soluble in organic solvents such as cyclohexane and mineral spirits. The structural formula is: [0003] [0004] Dinotefuran is very safe to mammals. Its acute oral LD50 is 2450mg / kg for male rats and 2275mg / kg for female rats; 2840mg / kg for male mice and 2000mg / kg for female mice. Acute percutaneous LD50 for rats > 2000mg / kg (female and male). No teratogenicity, carcinogenicity and mutagenicity. Dinotefuran is also very safe to aquatic organisms. Fish toxicity te...

Claims

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Application Information

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IPC IPC(8): A01N53/08A01N51/00A01N53/06A01N37/38A01N55/10A01N31/14A01P7/04
Inventor 杨寿海陈文明刘小平戴顺坤刘德友
Owner NANJING HUAZHOU PHARMA
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