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Composite pesticidal composition containing dinotefuran and abamectin and application thereof

A technology of an insecticidal composition and abamectin, applied in the field of pesticides, can solve the problems such as the decline in the effect of pest control, the insecticidal composition of dinotefuran and abamectin has not been found, and achieve fast insecticidal speed , good control effect, the effect of reducing the cost of medication

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

[0007] However, the resistance of homopteran pests, especially rice planthopper, whitefly, leafhopper and aphid, gradually increases under the current long-term medication conditions, and the effect of the above-mentioned single-dose pesticides on pest control gradually decreases.
The inventor found through research that the synergistic compounding of pesticides can expand the control spectrum and improve the control effect, and no insecticidal composition related to dinotefuran and abamectin has been found so far.

Method used

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  • Composite pesticidal composition containing dinotefuran and abamectin and application thereof
  • Composite pesticidal composition containing dinotefuran and abamectin and application thereof
  • Composite pesticidal composition containing dinotefuran and abamectin and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dinotefuran and avermectin were weighed and prepared in different proportions by conventional preparation methods to prepare dinotefuran-abamectin emulsifiable concentrate with a mass percentage of main active ingredients of 3%. The specific proportions are shown in Tables 1 and 2. The control agents were 3% dinotefuran EC and 3% abamectin EC respectively.

[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 abamectin compound and single dose agains...

Embodiment 2

[0031] Weigh 5g dinotefuran, 5g abamectin, 3g phenethylphenol polyoxyethylene ether phosphate, agricultural milk 33 # 2g, 1g of alkylphenol polyoxyethylene ether, 13g of xylene, 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 prepare a 10% dinotefuran-abamectin water-based emulsion with a weight percentage of the main active ingredient.

Embodiment 3

[0033] Weigh 2g of dinotefuran, 8g of abamectin, 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 10% dinotefuran-abamectin microemulsion with a main active ingredient weight percentage.

[0034] Embodiment 3 is carried out to control rice brown planthopper drug effect test, contrast agent is 10% abamectin EC (emulsifiable concentrate) and 10% dinotefuran (WP), dilutes according to the dilution multiple in table 3 (medicine solution is applied after dilution) Consumption is 30kg / mu), check 2 days after medicine, the result of 5 days and 10 days, the processing result is shown in Table 3:

[0035] Table 3: Field test results of dinotefuran-abamectin compound on rice brown p...

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Abstract

The invention discloses a composite pesticidal composition containing dinotefuran and abamectin and an application thereof. The pesticidal composition comprises dinotefuran and abamectin as main effective ingredients, wherein, the weight ratio of dinotefuran to abamectin is 0.1-70:0.5-75. The pesticidal composition can be used for controlling homoptera and hemiptera insects on crops, especially rice hopper, whitefly, leafhopper and aphid, can generate high synergism, overcomes and postpones the drug resistance of insects, has rapid insecticidal speed and long persistent period, reduces drug costs, and has better control effect than single-ingredient pesticidal composition.

Description

technical field [0001] The invention belongs to the field of pesticides, in particular to a compound insecticidal composition containing dinotefuran and abamectin and its application. Background technique [0002] Dinotefuran is a third-generation neonicotinoid insecticide developed by Mitsui Chemicals. Its chemical structure is very different from that of the existing neonicotinoid insecticides. Its tetrahydrofuryl group replaces the previous chloropyridyl and chlorothiazolyl groups, and it does not contain halogen elements. At the same time, it is also different from nicotine in terms of performance. Therefore, it is currently called "furan nicotine". Dinotefuran chemical name: 1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine, the structural formula is as follows: [0003] [0004] The new-generation neonicotinoid insecticide dinotefuran mainly acts on the neurotransmitter system of insects, paralyzing them to death. The agent has a wide insecticidal spectrum,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N51/00A01N43/90A01P7/04
Inventor 杨寿海陈文明倪峰彭永强刘德友
Owner NANJING HUAZHOU PHARMA
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