Synergia insecticide composition containing dinotefuran and chlorfluazuron and application thereof

An insecticidal composition, the technology of chlorfluazuron, applied in the field of pesticides, can solve the problems of high cost of pesticides for farmers, inability to protect crops, easy to produce pesticide resistance, etc., to reduce the amount of pesticides used in the field, reduce pesticide residues, and reduce labor costs for control Effect

Active 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

[0008] Insecticide varieties containing a single component often have defects in the control of pesticide pests: continuous use is easy to produce resistance, narrow insecticidal spectrum, cannot provide comprehensive protection for crops, and the cost of pesticides for farmers is high.

Method used

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  • Synergia insecticide composition containing dinotefuran and chlorfluazuron and application thereof
  • Synergia insecticide composition containing dinotefuran and chlorfluazuron and application thereof
  • Synergia insecticide composition containing dinotefuran and chlorfluazuron and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dinotefuran and chlorfluazuron were weighed and prepared in different proportions by conventional preparation methods to prepare dinotefuran-chlorfluazuron emulsifiable concentrate with a main active ingredient of 30% by weight. See Table 1 for specific proportions. The control agents were 30% dinotefuran EC and 30% chlorfluazuron EC respectively.

[0021] The toxicity of dinotefuran, chlorfluazuron and their compound samples to rice stem borer was determined by the feed poisoning method. Each treatment was repeated 3 times, and 30 heads were treated at each concentration. 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0022] Table 1 Toxicity determination and co-toxicity coefficient of dinotefuran, chlorfluazuron and their compound samples to rice stem borer

[0023]

[0024] The data in the table shows that dinotefuran and chlorfluazuron have a synergistic effect on rice stem borer after being mixed, and the co-toxicity coefficients ...

Embodiment 2

[0026] Dinotefuran and chlorfluazuron were weighed and prepared in different proportions by conventional preparation methods to prepare dinotefuran-chlorfluazuron emulsifiable concentrate with a main active ingredient of 30% by weight. The control agents were 30% dinotefuran EC and 30% chlorfluazuron EC respectively, and the specific proportions are shown in Table 2.

[0027] The toxicity of dinotefuran, chlorfluazuron and their compound samples to rice brown planthopper was determined by rice stem dipping method, each treatment was repeated 3 times, and LC 50 Calculate the co-toxicity coefficient according to Sun Yunpei's method:

[0028] Table 2 Toxicity determination and co-toxicity coefficient of dinotefuran, chlorfluazuron and their compound samples to rice brown planthopper

[0029]

[0030] The data in the table shows that the mixture of dinotefuran and chlorfluazuron has a synergistic effect on brown planthoppers, and the co-toxicity coefficients of the four ratios...

Embodiment 3

[0032] Weigh 5g of dinotefuran, 20g of chlorfluazuron, 4g of calcium dodecylbenzenesulfonate, 3g of phenethylphenol polyoxyethylene ether, and xylene to 100g, and put the above raw materials into the mixing kettle according to the conventional method of preparing emulsifiable concentrate Mix to form dinotefuran·chlorfluazuron emulsifiable concentrate whose main active ingredient is 25% by weight.

[0033] Adopt the sample that embodiment 3 is equipped to carry out the field test of controlling rice brown planthopper in field, contrast agent is 25% dinotefuran WP and 25% chlorfluazuron EC, and concrete consumption is shown in Table 3, and water consumption per mu is 30kg, checks 3 after medicine Day, 7 days, 14 days, 28 days results, the test results are shown in Table 3:

[0034] Table 3 example 3 sample is to the field test result of rice brown planthopper

[0035]

[0036] It can be seen from Table 3 that Example 3 has excellent quick-acting effect on rice brown planthop...

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Abstract

The invention discloses a synergia insecticide composition containing dinotefuran and chlorfluazuron and an application thereof. The synergia insecticide composition uses the dinotefuran and the chlorfluazuron as major effective ingredients, wherein the weight ratio of the dinotefuran to the chlorfluazuron is (0.1 to 80) / (0.5 to 80). The insecticide composition is used for preventing and treating various kinds of pests such as lepidoptera pests, homoptera pests, hymenoptera pests, coleoptera pests and the like and has the effects of prevention and treatment range expansion and effect enhancement, and in addition, the medication cost can be reduced.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to an insecticidal composition with dinotefuran and chlorfluazuron as main active ingredients 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 <1.7×10-6pa (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 test...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N47/34A01P7/04
Inventor 陈志忠郭崇友陈文明王晓阳唐旺全
Owner NANJING HUAZHOU PHARMA
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