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Compound insecticide containing dinotefuran and pymetrozine

A technology of pymetrozine and dinotefuran, applied in the direction of insecticides, biocides, animal repellants, etc., can solve the problems of not being able to immediately reduce the number of pests in the field, and slow availability

Inactive Publication Date: 2014-03-26
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to its unique mode of action, pymetrozine has no knockdown activity on pests. When used alone, although it has a long-lasting effect, its quick-acting effect is slow, and it cannot immediately reduce the number of pests in the field.
At present, domestic and foreign scholars have carried out some studies on the synergistic compounding of dinotefuran, but there is no report on the combination of dinotefuran and pymetrozine

Method used

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  • Compound insecticide containing dinotefuran and pymetrozine
  • Compound insecticide containing dinotefuran and pymetrozine

Examples

Experimental program
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Effect test

Embodiment 1

[0017] 1. Source of insects to be tested

[0018] The white-backed planthopper collected from the experimental field of the China Rice Research Institute in Hangzhou, Zhejiang Province in October 2009 was subcultured with TN1 (Taichung No. 1) rice seedlings without any pesticides in the room. ℃, the relative humidity is 70% to 80%, and the light conditions are 16 / 8h (L / D).

[0019] 2. Drugs to be tested

[0020] 91.0% dinotefuran original drug was provided by Jiangsu Oakley Company; 97.2% pymetrozine was provided by Nanjing Drug Inspection Institute.

[0021] 3. Drug preparation

[0022] Dissolve dinotefuran or pymetrozine in DMF to prepare 1500mg / L mother liquors respectively, and mix the prepared dinotefuran and pymetrozine mother liquors according to a series of compounding ratios to obtain compound drug mother liquors. Distilled water containing 0.3‰ TritonX100 was used to dilute the prepared mother liquor to a series of concentrations.

[0023] 4. Toxicity Assay Metho...

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Abstract

The invention relates to a pesticide compound, in particular to a compound insecticide containing dinotefuran and pymetrozine. A compound insecticide containing dinotefuran and pymetrozine is characterized in that dinotefuran and pymetrozine are in a weight ratio of 1:3-1:105. Through laboratory bioassays, two compound proportions with obvious synergistic effect are screened out: when dinotefuran and pymetrozine have a content ratio of 1:7-4:175, the co-toxicity coefficient of the two are respectively at 3712.62 and 3206.61, showing extremely high level of synergistic effect. The above compound agent with reasonable ratio has strong toxicity on Hemiptera insects like brown planthopper, high co-toxicity coefficient and strong synergistic effect, and is a compound agent with high efficiency and low toxicity.

Description

Technical field [0001] The present invention relates to a pesticide compound, in particular to a compound pesticide containing dinotefuran and pymetrozine. Background technique [0002] Dinotefuran, 1-methyl-2-nitro-3-(tetrahydro-3-furylmethyl)guanidine, is a third-generation nicotine pesticide developed by Mitsui Chemicals of Japan in 1993. It was introduced to the market in 2002, but it has not yet been promoted and used in China. Its chemical structure is different from existing nicotine pesticides. It is the only new nicotine that does not contain chlorine atoms and aromatic rings, and has different action characteristics from previous nicotine pesticides. Dinotefuran has contact and gastric poisoning effects. It has strong root systemic absorption, high rapid effect and long duration of effect. It has excellent control effect against piercing and sucking mouthparts pests. In view of the fact that dinotefuran has a wide insecticidal spectrum and is very safe for crops,...

Claims

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Application Information

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IPC IPC(8): A01N51/00A01P7/04A01N43/707
Inventor 刘泽文张懿熙丁志平杨保军
Owner NANJING AGRICULTURAL UNIVERSITY
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