Insecticidal composition containing pymetrozine and nitenpyram and preparation method of insecticidal composition

A technology for an insecticidal composition and nitenpyram, which is applied in the field of insecticidal compositions containing pymetrozine and nitenpyram and their preparation, can solve the problems of easy generation of drug resistance and the like, and achieves lowering the cost of drugs for farmers and saving Effects of pesticides, delaying the development of resistance

Inactive Publication Date: 2015-10-21
HUAZHONG AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the control of brown planthoppers has always been chemical control. In recent years, pymetrozine and nitenpyram have become the main agents for the control of brown planthoppers. Rotation of drugs without cross-resistance or mixed use of compound drugs with synergistic effect is considered to be a simple and easy method to delay drug resistance

Method used

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  • Insecticidal composition containing pymetrozine and nitenpyram and preparation method of insecticidal composition
  • Insecticidal composition containing pymetrozine and nitenpyram and preparation method of insecticidal composition
  • Insecticidal composition containing pymetrozine and nitenpyram and preparation method of insecticidal composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] An insecticidal composition wettable powder containing pymetrozine and nitenpyram, which is made of the following raw materials in mass fraction:

[0039]

[0040] A method for preparing an insecticidal composition containing pymetrozine and nitenpyram, the preparation steps are:

[0041] A: According to the designed formula, weigh a certain amount of dinotefuran original drug, nitenpyram original drug, wetting agent, dispersant, other additives, and carrier samples.

[0042] B: Grind the sample finely, mix it evenly, and then pulverize it on a high-speed pulverizer (325 mesh) for 10-15 minutes, and then pulverize the sample on a jet pulverizer for 8-15 minutes.

[0043] C: The sample was taken out after 10 minutes (325 mesh), and 30% pymetrozine was obtained. Nitenpyram preparations.

Embodiment 2

[0045] A preparation method and mixing method of an insecticidal composition wettable powder containing pymetrozine and nitenpyram, which is made of the following raw materials in mass fraction:

[0046]

[0047] The preparation method is the same as in Example 1.

Embodiment 3

[0049] A preparation method and mixing method of an insecticidal composition water-dispersible granule containing pymetrozine and nitenpyram, which is made of the following raw materials in mass fraction:

[0050]

[0051] A method for preparing an insecticidal composition preparation containing pymetrozine and nitenpyrid, the steps are:

[0052] A. Weigh pymetrozine, nitenpyram, dispersant, wetting agent, filler, disintegrant, binder and other samples according to the designed formula, mix them, and pulverize them on a high-speed pulverizer;

[0053] B, the pulverized sample is placed in a beaker, and water (10-20%) containing a binder is added while stirring, which can be initially kneaded into mud, and then added to a granulator for extrusion granulation;

[0054] C. Finally, place the extruded granules in an oven at 30-40°C for drying, and the moisture content should be 0.5-1.0%.

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Abstract

The invention discloses an insecticidal composition containing pymetrozine and nitenpyram and a preparation method of the insecticidal composition. The insecticidal composition is prepared through mixing the pymetrozine, the nitenpyram, a carrier, a wetting agent, a dispersing agent and other addition agents according to a certain proportion. The preparation method comprises the following steps of: A, respectively weighing a pymetrozine active compound, a nitenpyram active compound, the wetting agent, the dispersing agent, the addition agents and the carrier according to a certain proportion; B, respectively milling the pymetrozine active compound, the nitenpyram active compound, the wetting agent, the dispersing agent, the addition agents and the carrier, uniformly mixing all the milled raw materials so as to obtain a mixture, crushing the mixture in a high-speed crusher, and taking out the mixture so as to obtain the crushed mixture; and C, placing the crushed mixture in jet mill, and taking out the mixture so as to obtain a pymetrozine-nitenpyram preparation. The drug effect is improved, the service life is prolonged, the usage quantity of agricultural chemicals is reduced, environmental pollution is effectively alleviated, the cost is low, the economic burdens of farmers are reduced, and the food safety is improved.

Description

technical field [0001] The invention belongs to the field of insecticidal technology containing pyridine compounds and neonicotinoid compounds, more specifically relates to an insecticidal composition containing pymetrozine and nitenpyram, and also relates to an insecticidal composition containing pymetrozine A preparation method of a mixed preparation with nitenpyram, which is suitable for preventing and controlling piercing-sucking pests brown planthopper, white-backed planthopper, brown planthopper, green planthopper, aphids, whitefly, whitefly in greenhouses, leafhoppers, thistles Agricultural pests such as horses. Background technique [0002] The brown planthopper is one of the main pests of rice in my country. The brown planthopper begins to move into the Yangtze River Basin in my country in the middle and late June every year. From the first ten days of September to the first ten days of October, the brown planthopper begins to increase in large numbers, reaching the...

Claims

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Application Information

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IPC IPC(8): A01N43/707A01P7/04A01P5/00A01N43/40
Inventor 李建洪张小磊万虎何顺廖逊张淑真毛凯凯
Owner HUAZHONG AGRICULTURAL UNIVERSITY
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