Pesticide composition for preventing and controlling thrips of mangoes

A pesticide composition and the technology of the composition, which are applied in the field of pesticide application, can solve the problems of reduced drug efficacy, increased resistance of mango thrips, and monotony, and achieve the effects of reducing the amount of application, delaying the development of drug resistance, and improving the control effect

Inactive Publication Date: 2017-05-10
张宗斌
3 Cites 0 Cited by

AI-Extracted Technical Summary

Problems solved by technology

[0005] In the control of mango thrips, imidacloprid is one of the most commonly used medicaments, but because of its long-term single use, the resistance of mango thrips to it is increased, an...
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Abstract

The invention relates to a pesticide composition for preventing and controlling thrips of mangoes. The pesticide composition consists of cyantraniliprole and carbosulfan, wherein the weight ratio of the cyantraniliprole and to the carbosulfan is (1-3):(2-5). The pesticide composition has a synergistic effect, is suitable for prevention and control of the thrips of the mangoes, can effectively delay development of pest resistance, reduce the application amount of each piece of pesticide and improve the prevention and control effect, and is favorable for reducing chemical pesticide residue.

Application Domain

BiocideDead animal preservation +3

Technology Topic

CyantraniliproleControl effect +5

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  • Pesticide composition for preventing and controlling thrips of mangoes

Examples

  • Experimental program(4)
  • Effect test(1)

Example Embodiment

[0018] Example 1: Indoor toxicity determination of cyantraniliprole, carbosulfan and different ratios on mango tea yellow thrips
[0019] Test drug: 94% of the original drug of cyantraniliprole (DuPont, USA); 90% of the original drug of carbosulfan (Hubei Sanonda Co., Ltd.), the original drug was prepared into the required test drug according to the conventional method .
[0020] Test object: Mango tea yellow thrips, collected from the suburbs of Tianyang County, Guangxi, and raised with potted mango seedlings indoors.
[0021] Test method: The test refers to the "Agricultural Industry Standards of the People's Republic of China" (Pesticide Indoor Bioassay Test Guidelines for Insecticides NY/T1154.14-2008), and the leaf soaking method is used. Cut the fresh and tender mango (green) leaves into 5mm*20mm strips, soak them in the prepared medicinal solution for 10 seconds, take them out and dry them fully in the shade, and put them into finger-shaped tubes (5cm high, 1cm inner diameter); Adults of Thrips thea yellow with consistent growth were gently picked into the tube and sealed with plastic wrap; 20 test insects per tube, each treatment was repeated 3 times, and the soaking water treatment was set as a control; the test tube was placed flat on a white porcelain plate, Shade with a black cloth, place in a 26-27°C incubator for cultivation, and check the number of dead insects within 48 hours.
[0022] Use DPS data processing software for statistical analysis, calculate the regression curve, and calculate the LC of each drug 50 , using the co-toxicity coefficient method (CTC) proposed by Sun Yunpei et al. in 1960 to evaluate the synergistic effect of drug mixture. The composition shows antagonistic effect; when 80
[0023] Table 1 Indoor toxicity determination of cyantraniliprole, carbosulfan and different ratios on mango tea yellow thrips
[0024] Test drug Proportion LC50(μg/mL) co-toxicity coefficient Cyantraniliprole (A) / 1.72 / Carbosulfan (B) / 2.61 / A:B 1:2 1.59 140.6 A:B 1:3 1.70 136.1 A:B 1:5 1.43 167.6 A:B 2:3 1.22 177.2 A:B 2:5 1.43 159.1 A:B 3:2 1.44 138.3 A:B 3:5 1.52 144.1 A:B 9:1 2.27 78.8
[0025] The test results show that when cyantraniliprole and carbosulfan are mixed in the range of 1-3:2-5 by weight, the co-toxicity coefficient (CTC) is greater than 120, showing a good synergistic effect Wherein when the weight ratio of cyantraniliprole and carbosulfan is 2:3, its co-toxicity coefficient is the largest, and the mango tea yellow thrips has good control effect, can reduce the dosage of each single dose, reduce Pesticide costs.
[0026] 2. Preparation Examples
[0027] Example 1: 25% cyantraniliprole Carbosulfan suspension concentrate
[0028] Weigh 10% cyantraniliprole, 15% carbosulfan, 5% calcium dodecylbenzenesulfonate, 4% saponin powder, 2% silicone oil, 1.2% polyvinylpyrrolidone, 0.8 diethylene glycol %, deionized water was added to 100%, and mixed to prepare 30% cyantraniliprole·carbsulfur suspension concentrate.

Example Embodiment

[0029] Example 2: 20% cyantraniliprole · carbosulfan suspension concentrate
[0030] Weigh 10% cyantraniliprole, 10% carbosulfan, 6% alkylphenol polyoxyethylene sulfonate, 6% sodium dodecylbenzenesulfonate, 1% C8-10 fatty alcohol, phenolic aldehyde Add 2% resin and deionized water to 100%, and mix to prepare 20% cyantraniliprole-spinosyn suspension concentrate.

Example Embodiment

[0031] Example 3: 15% cyantraniliprole Carbosulfan suspension concentrate
[0032] Weigh 10% cyantraniliprole, 5% carbosulfan, 6% ester polyoxyethylene, 5% Sapindus powder, 1.2% silicone, 2% methylcellulose, deionized water Add to 100%, and mix to prepare 15% cyantraniliprole-carbofuran suspension concentrate.

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