Composite pesticides for controlling rice pests

A technology of insecticide and insecticide composition, which is applied in the field of pesticides, can solve the problems of time-consuming, labor-intensive, and narrow insecticidal spectrum, and achieve the expansion of insecticide spectrum, the reduction of non-point source pollution of pesticides, and the The effect of decreasing usage

Inactive Publication Date: 2013-02-06
潘登
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The application of the above insecticides in rice production also has the disadvantage of a relatively narrow insecticidal spectrum. Farmers

Method used

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  • Composite pesticides for controlling rice pests
  • Composite pesticides for controlling rice pests
  • Composite pesticides for controlling rice pests

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Example 1: Determination of synergy between dinotefuran, etofenproxil and flusalthrin on rice leaf roller

[0026] 95% dinotefuran TC, 94% etofenprox TC, and 93% flufluthrin TC were dissolved in acetone to form a 5000 μg / ml mother solution, and 3% Tween-80 (used as emulsifier and spreading agent) was added. Simultaneously prepare samples with different proportions with dinotefuran mother liquor and different amounts of etofenproxil and flusafrin mother liquors. 10:1, 1:1, 1:10, 1:20, 1:30, 1:40; the ratios of dinotefuran:flufluthrin in the sample are 50:1, 25:1, 10:1, 1: 1, 1: 10, 1: 25, 1: 50; the test sample and the mother liquor were diluted with 0.5% Tween-80 aqueous solution to the serial concentrations of the medicinal liquid, and the effects of the various concentrations of the medicinal liquid on the rice leaf roller were determined by the method of soaking insects. insecticidal activity. After soaking the 2nd instar larvae of the rice leaf roller in various c...

Embodiment 2

[0031] Example 2: Clothianidin, Etoproxil, and Flufluthrin are synergistically determined for rice planthoppers

[0032]94% Clothianidin TC, 94% Etoproxil TC, and 93% Flufluthrin TC were dissolved in acetone to form a 5000 μg / ml mother solution, and 3% Tween-80 (used as emulsifier and spreading agent) was added. Simultaneously prepare different ratio samples with clothianidin mother liquor and different amounts of etofenproxil and flusafrin mother liquor, the ratios of clothianidin: etofenprox are respectively 40:1, 20:1, 30:1, 10:1, 1:1, 1:10, 1:20, 1:30, 1:40; the ratios of clothianidin:fluthrin in the samples were 50:1, 25:1, 10:1, 1: 1, 1: 10, 1: 25, 1: 50; the test samples and the mother liquor were diluted with 0.5% Tween-80 aqueous solution, and the concentration of the medicinal liquid was measured by the seedling soaking method to kill rice planthoppers. Insect activity. Soak rice seedlings at the 3-leaf stage (variety: Zhendao No. 10) in various concentrations of m...

Embodiment 3

[0037] Example 3: Field control effect of combined insecticides on rice planthopper

[0038] Weigh 20g of clothianidin technical material (calculated in hundreds, the same below), 5g of etofenprox technical material, add 10g of sodium lignosulfonate, 2g of K12 (sodium lauryl sulfate), and 63g of filler light calcium carbonate , passing through a 250-mesh sieve after jet crushing to obtain 25% clothianidin-etoproxil WP;

[0039] Weigh 35g of clothianidin technical substance (calculated in hundreds, the same below), 5g of flusalthrin technical substance, add 15g of sodium lignosulfonate, 5g of K12 (sodium lauryl sulfate), light calcium carbonate as filler 40g, passed through a 250-mesh sieve after airflow crushing, to obtain 40% clothianidin flusilthrin WP;

[0040] Weigh 40g of dinotefuran technical material (calculated in hundreds, the same below), 2 g of etofenprox technical material, add 13 g of sodium lignosulfonate, 2 g of K12 (sodium lauryl sulfate), and 43 g of filler l...

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Abstract

The invention relates to proportions and application of composite pesticides. The composite pesticides comprise effective ingredients, namely clothianidin and ethofenprox, clothianidin and salifluofen, dinotefuran and ethofenprox, and dinotefuran and salifluofen respectively. By weight percent, the clothianidin or dinotefuran accounts for 40-1%, and the ethofenprox or salifluofen accounts for 1-50%; the ratio of the clothianidin or dinotefuran to the ethofenprox is 40:1-1:40, preferably 20:1-1:20; and the ratio of the clothianidin or dinotefuran to the salifluofen is 50:1-1:50, preferably 25:1-1:25. The four composite pesticides have wide insecticidal spectrum and are highly systemic, well quick-acting, persistent and environment-friendly, usage times of the pesticides and environmental pollution can be decreased, resistance of the pests to the pesticides can be delayed effectively, and the composite pesticides are applicable to comprehensive control of rice pests.

Description

technical field [0001] The invention belongs to the technical field of pesticides, and relates to a combined insecticide of dinotefuran or clothianidin and etofenprox or flufluthrin and a method for controlling rice pests. Background technique [0002] In recent years, especially since 2003, the occurrence of rice diseases and insect pests has been widespread; especially the rice leaf roller and brown planthopper have occurred more seriously in the Jianghuai rice region, showing more peaks and a large amount of migration. The rice area presents a situation of large-scale or extra-large occurrence, and there are often 3 to 4 peaks in one generation, which brings great difficulties to the control work. Due to improper or untimely control, it has brought great losses to my country's rice production. . At the same time, rice borer pests in the Jianghuai rice region are on the rise, especially the occurrence of rice borer is more serious than before. When the occurrence of these ...

Claims

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Application Information

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IPC IPC(8): A01N55/10A01N51/00A01N31/14A01P7/04
Inventor 潘登
Owner 潘登
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