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Compound insecticidal composition containing dinotefuran and carbosulfan and purpose thereof

An insecticidal composition, the technology of dinotefuran, which is applied in the field of pesticides, can solve the problems of the decline in the effect of pest control, and the problem that no insecticidal composition of dinotefuran and carbofuran has been found, so as to reduce the labor required for control, The effect of overcoming the resistance of pests and improving the control effect

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] But rice planthoppers, aphids and other pests have gradually increased their resistance under the current long-term use of pesticides, and the effect of single-dose pesticides on pest control has gradually declined.
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, and no insecticidal composition related to dinotefuran and carbosulfan has been found so far.

Method used

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  • Compound insecticidal composition containing dinotefuran and carbosulfan and purpose thereof
  • Compound insecticidal composition containing dinotefuran and carbosulfan and purpose thereof
  • Compound insecticidal composition containing dinotefuran and carbosulfan and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Dinotefuran and carbosulfan were weighed and prepared in different proportions by conventional preparation methods to prepare dinotefuran and carbosulfan EC with a mass percentage of the main active ingredient of 30%. The specific proportions are shown in Tables 1 and 2. The control agents were 30% dinotefuran EC and 30% carbosulfan EC respectively.

[0021] Indoor synergistic bioassay was carried out by rice stem dipping method, the resistant rice planthopper was selected as the target pest, each treatment was repeated 3 times, and 60 heads were treated at each concentration, and the toxicological regression of each pesticide resistant rice planthopper was calculated by the probability value method Equation and lethal 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:

[0022] Table 1 Toxicity determination of dinotefuran and carbosulfan compound and single dose against res...

Embodiment 2

[0030] Weigh 5g of dinotefuran, 50g of carbosulfan, 3g of phenylethylphenol polyoxyethylene ether phosphate, and 33 grams of agricultural milk # 2g, 1g of alkylphenol polyoxyethylene ether, 13g of mineral spirits, 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 prepare a water emulsion with a main active ingredient of 55% by weight of dinotefuran-carbosulfan.

Embodiment 3

[0032] Weigh 10g of dinotefuran, 10g of carbosulfan, 6g of calcium dodecylbenzenesulfonate, 3g of phenylethylphenol polyoxyethylene ether phosphate, and 33 grams of agricultural milk # 2g, 1g of alkylphenol polyoxyethylene ether, 10g of cyclohexanone, 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 prepare a dinotefuran-carbsulfur microemulsion with a weight percentage of 20% of the main active ingredient.

[0033] Carry out the efficacy test of controlling rice brown planthopper in Example 3, the control agents are 20% carbosulfan WP and 20% dinotefuran WP, dilute according to the dilution multiple in Table 3, and spray the liquid medicine per mu after dilution 30 kg, check the results after 3 days and 7 days after taking the medicine, see Table 3 for the treatment results:

[0034] Table 3: Field test results of dinotefuran-carbsulfur compound on rice brown planthopper

[0...

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Abstract

The invention discloses a compound insecticidal composition containing dinotefuran and carbosulfan and a purpose thereof. The insecticidal composition treats dinotefuran and carbosulfan as main effective components, wherein the weight ratio of dinotefuran to carbosulfan is 1-70:1-70. The insecticidal composition of the invention, which can control homoptera pests and lepidoptera pests on crops, and can especially control rice hoppers, aphids, rice stem borers and cotton bollworms, can generate high synergy effects, and allows the pest drug resistance to be overcome and delayed, the insecticidal speed to be fast, the persistent period to be long, the drug consumption cost to be reduced, and the control effect to be obviously higher than the control effect one of dinotefuran and carbosulfan.

Description

technical field [0001] The invention belongs to the field of pesticides, and in particular relates to a compound insecticidal composition containing dinotefuran and carbosulfan and its application. Background technique [0002] Dinotefuran (dinotefuran), 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. [0003] 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 shows that dinotefuran is more than 1000mg / L to carp nm(48h), and is more than 1000mg / L to daphnia; similarly, dinote...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N47/24A01P7/04
Inventor 齐武王红明谷顺明陈志忠陈文明
Owner NANJING HUAZHOU PHARMA
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