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Preparation method of composite brown rice planthopper composite insecticide for paddy rice

A compound brown planthopper and insecticide technology, which is applied in the direction of insecticides, botanical equipment and methods, biocides, etc., can solve the problems of reduced insecticidal effect of compound insecticides, and achieve good market demand and market prospects, Enhancement effect, excellent effect

Inactive Publication Date: 2017-11-24
兰溪市顺光园艺技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, rice planthoppers are prone to develop resistance to modified compound insecticides, which may reduce the insecticidal effect of the compound insecticides

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation method of rice compound brown planthopper compound insecticide, the specific operation steps are:

[0023] 1) Mix trifipronil, enidine·pymetrozine, plant-derived additives, dinotefuran, and chlorpyrifos evenly, add water according to the mass ratio of insecticide:water of 1:13~20, and heat to 70 Stir at ~100°C to obtain a mixture for later use;

[0024] 2) Concentrate the mixture in step 1 to a water content of ≤30%, dry, pulverize, sieve out 130-200 mesh particles, and control the sterilization conditions at a temperature of 120-150°C, a pressure of 200-240KPa, and a time of 4 Sterilize for ~7min to prepare the mixture powder for subsequent use;

[0025] 3) Put the mixture powder in step 2 into the reaction tank, add emulsifier, solvent, stabilizer, carrier and mix and stir to prepare the compound insecticide. Among them, the botanical additive not only has a high-efficiency insecticidal effect, but also has various modes of action on pests, and the p...

Embodiment 2

[0035] The preparation method of rice compound brown planthopper compound insecticide, the specific operation steps are:

[0036] 1) Mix trifipronil, enidine·pymetrozine, plant-derived additives, dinotefuran, and chlorpyrifos evenly, add water according to the mass ratio of insecticide: water of 1:15, and then heat to 85°C Stir to get the mixture and set aside;

[0037] 2) Concentrate the mixture in step 1 to a water content of 28%, dry, pulverize, and sieve out 140-mesh particles. Control the sterilization conditions at a temperature of 135°C, a pressure of 210KPa, and sterilize for 5 minutes to obtain Mixture powder, spare;

[0038] 3) Put the mixture powder in step 2 into the reaction tank, add emulsifier, solvent, stabilizer, carrier and mix and stir to prepare the compound insecticide. Among them, the botanical additive not only has a high-efficiency insecticidal effect, but also has various modes of action on pests, and the pests are not easy to develop drug resistance...

Embodiment 3

[0048] The preparation method of rice compound brown planthopper compound insecticide, the specific operation steps are:

[0049] 1) Mix trifipronil, enidine·pymetrozine, plant-derived additives, dinotefuran, and chlorpyrifos evenly, add water according to the mass ratio of insecticide:water of 1:17, and then heat to 80°C Stir to get the mixture and set aside;

[0050] 2) Concentrate the mixture in step 1 to a water content of 25%, dry, pulverize, and sieve out 150-mesh particles. Control the sterilization conditions at a temperature of 140°C, a pressure of 225KPa, and sterilize for 6 minutes to obtain a mixture powder, spare;

[0051] 3) Put the mixture powder in step 2 into the reaction tank, add emulsifier, solvent, stabilizer, carrier and mix and stir to prepare the compound insecticide. Among them, the botanical additive not only has a high-efficiency insecticidal effect, but also has various modes of action on pests, and the pests are not easy to develop drug resistanc...

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PUM

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Abstract

The invention discloses a preparation method of a composite brown rice planthopper composite insecticide for paddy rice. The preparation method comprises the operation steps of uniformly mixing fipronil with nitenpyram pymetrozine, a plant-derived additive, dinotefuran, chlorpyrifos and water, heating, and stirring so as to obtain a mixture A; concentrating the mixture A, drying the concentrated mixture A, crushing the dried mixture A, screening the crushed mixture A, and sterilizing the screened mixture A so as to obtain mixture powder; putting the mixture powder into a reaction tank, adding an emulsifying agent, a solvent, a stabilizing agent and a carrier, mixing and stirring so as to obtain the composite insecticide. The preparation method disclosed by the invention is simple, little equipment is required, the prepared composite insecticide has good preventing and controlling effects on brown rice planthopper and also has preventing and controlling effects on other pests, the growth of the paddy rice can be comprehensively protected, the composite insecticide has efficient pest killing effects and has diversified pest action manners, the pests are not liable to cause drug resistance, and the composite insecticide is safe to environment.

Description

technical field [0001] The invention belongs to the technical field of insecticides, and in particular relates to a preparation method of a rice compound brown planthopper compound insecticide. Background technique [0002] Brown rice planthopper ( Nilaparvata lugens (Stal)) Classification attributes: Hemoptera Homoptera: Delphacidae Alias: Brown rice hopper, a kind of rice planthopper. The brown planthopper has long-distance migratory habits and is currently the primary pest of rice in my country and many Asian countries. Brown planthopper is a monophagous pest, which can only feed and reproduce on rice and common wild rice. [0003] The brown planthopper is a migratory pest, and the number of generations occurs every year, increasing from north to south. The northern limit of overwintering fluctuates between 21°C and 25°C north latitude with the annual winter temperature. The rice fields north of 25°C north latitude cannot survive the winter all year round. Therefore, t...

Claims

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Application Information

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IPC IPC(8): A01N25/22A01N65/24A01N43/90A01N43/16A01N43/40A01N43/707A01N57/16A01N51/00A01N47/02A01P7/04
CPCA01N25/22A01N43/16A01N43/40A01N43/707A01N43/90A01N47/02A01N51/00A01N57/16A01N65/00A01N65/24A01N2300/00Y02A50/30
Inventor 杨洋
Owner 兰溪市顺光园艺技术有限公司
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