Composite insecticidal composition containing dinotefuran and isoprocarb and purpose thereof

An insecticidal composition and a technology of isoprecarb, applied in the field of pesticides, can solve the problems such as the insecticidal composition of dinotefuran and isoprocarb that has not been found yet, and the effect of pest control is decreased, so as to overcome the drug resistance of pests and reduce the prevention and control of pests. The effect of labor and resistance

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] 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 t

Method used

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  • Composite insecticidal composition containing dinotefuran and isoprocarb and purpose thereof
  • Composite insecticidal composition containing dinotefuran and isoprocarb and purpose thereof
  • Composite insecticidal composition containing dinotefuran and isoprocarb and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dinotefuran and isoprocarb were weighed and prepared in different proportions by conventional preparation methods to prepare dinotefuran·isoprocarb emulsifiable concentrate with a main active ingredient weight percentage of 30%. See Tables 1 and 2 for specific ratios.

[0022] 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:

[0023] Table 1 Toxicity determination of dinotefuran and isoprocarb compound and single dose resistant rice planthopper

[0024]

[0025] It can be seen from Table 1 that the combinati...

Embodiment 2

[0031] Weigh 5g dinotefuran, 50g isoprocarb, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 # (Alkylaryl polyoxypropylene polyoxyethylene ether) 2g, alkylphenol polyoxyethylene ether 1g, mineral spirits 13g, add water to 100g. The above raw materials are put into a mixing tank according to the conventional method for preparing water-based emulsions and mixed at high speed to form dinotefuran·isoprocarb water-based emulsions with a main active ingredient of 55% by weight.

Embodiment 3

[0033] Weigh 2g of dinotefuran, 18g of isoprocarb, 6g of calcium dodecylbenzenesulfonate, 3g of phenylethylphenol polyoxyethylene ether phosphate, and 33 grams of agricultural milk # (Alkylaryl polyoxypropylene polyoxyethylene ether) 2g, alkylphenol polyoxyethylene ether 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 dinotefuran·isoprocarb microemulsions with a main active ingredient of 20% by weight.

[0034] Example 3 is carried out to prevent and control rice brown planthopper efficacy test, contrast agent is 20% isoprocarb WP (wettable powder) and 20% dinotefuran WP (wettable powder), dilute according to the dilution factor in table 3, dilute Afterwards, the dosage of 30Kg / mu is used, and after the medicine, the medicine is checked for 3 days, and the results of 7 days are shown in Table 3 for the treatment results:

[0035] Table 3: Field test...

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PUM

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Abstract

The invention discloses a composite insecticidal composition containing dinotefuran and isoprocarb and purpose thereof. The insecticidal composition contains main effective components of dinotefuran and isoprocarb in a mass ratio of 0.1-80:0.5-80. The insecticidal composition can generate high synergism, overcome and delay resistance of insect, has fast insecticidal speed, long persistent period, reduced drug usage cost and obvious better control effect than that of a single dose. The composition of the invention can control homoptera insects on crops, especially rice hopper and aphid, and has obvious better control effect than that of a single dose.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a compound insecticidal composition containing dinotefuran and isoprocarb and its application. 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 test shows that dinotefuran is more t...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01N47/22A01P7/04
Inventor 齐武苑志军陈文明杨晓声彭永强
Owner NANJING HUAZHOU PHARMA
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