Biological insecticide containing methoprene as well as preparation and application methods thereof

A technology of biological insecticide and application method, which is applied in the field of biological insecticides containing methoprene, can solve problems such as large doses, and achieve the effects of enhancing effect, slowing down decay speed and simple process

Inactive Publication Date: 2012-02-15
CHINA TOBACCO HUNAN INDAL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some laboratories have found that lower doses of methoprene are also effective, but compared with the results in the laboratory, higher doses are often required in the threshing and redrying workshop

Method used

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  • Biological insecticide containing methoprene as well as preparation and application methods thereof
  • Biological insecticide containing methoprene as well as preparation and application methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In a 100ml beaker, accurately weigh 5g of methoprene, OP-102g, and 1g of propylene glycol monosalicylate, respectively, and put them into the beaker. Measure 50ml of ethanol and put them into the beaker to fully dissolve each component, and transfer them to the beaker. Put all the materials into a 100ml volumetric flask, and dilute to 100ml with water. After constant volume, transfer to a brown reagent bottle for use. This formula is suitable for online spraying and killing insects in the tobacco threshing and redrying process. It is recommended to add it at a concentration of 10ppm-20ppm (the active ingredient methoprene relative to tobacco).

[0025] The insecticide of the present invention has the same insecticidal effect as a commercially available certain similar insecticide (containing the active ingredient methoprene), as shown in Table 1.

[0026] Table 1 Tobacco beetle survival rate of throwing tobacco beetle eggs onto the tobacco sheet sprayed with medicament...

Embodiment 2

[0031] In a 100ml beaker, accurately weigh 0.1g of methoprene, 0.1g of OP-10, and 0.1g of ascorbyl palmitate, respectively, and put them into the beaker. Measure 30ml of ethanol and put them into the beaker to fully dissolve each component. All the materials were transferred to a 50ml volumetric flask, and the volume was adjusted to 50ml with ethanol. After constant volume, transfer to a brown reagent bottle for use. This formula is suitable for killing mosquitoes and flies in water quality, especially for sanitation treatment of stagnant water. It is recommended to add it at a concentration of less than 5ppm (the active ingredient methoprene relative to the water source).

Embodiment 3

[0033] In a 100ml beaker, accurately weigh 10g of methoprene, 2g of Tween-802g, and 5g of ascorbyl palmitate and put them into the beaker, measure 30ml of ethanol into the beaker to fully dissolve each component, and transfer all the materials in the beaker Transfer to a 100ml volumetric flask, and adjust the volume to 100ml with water, thus obtaining formula 1. After constant volume, transfer the material to a brown reagent bottle for use. This formula is suitable for killing pests in grain storage, and it is recommended to add it at a concentration of 5ppm-10ppm (the active ingredient methoprene relative to the grain).

[0034] In addition, in a 100ml beaker, accurately weigh 10g of methoprene, measure 30ml of ethanol and put it into the beaker to fully dissolve it, transfer all the materials in the beaker to a 100ml volumetric flask, and adjust the volume to 100ml with water, thus obtaining formula 2 .

[0035] Dilute formula 1 and formula 2 step by step by 40 times to ob...

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PUM

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Abstract

The invention provides a biological insecticide containing methoprene as well as preparation and application methods thereof. The biological insecticide is prepared from the following components: 0.01-10% of methoprene, 0.01-5% of surfactant, 0.01-10% of light stabilizer and 75-99% of solvent. The biological insecticide has the advantages that: by adopting the mixed solvent and the surfactant at the same time, the effective ingredients can be uniformly dispersed in the solution, and the uniformity of the effective ingredients in the using process can be ensured; the light stabilizer is added, thus the attenuation rate of methoprene is obviously reduced, the storage life of the insecticide is prolonged, and the using effect of the insecticide is enhanced; and the biological insecticide has very obvious killing effects on mosquitoes and flies in water as well as beetles, flour moths and other lepidoptera, diptera, coleoptera, homoptera and other insects in grain and tobacco, and can be applied to prevention and control of mosquitoes and flies in tap water, storage of grain and tobacco as well as disinfection and insect disinfection of carpets and the like.

Description

technical field [0001] The invention belongs to the field of biopesticides, and in particular relates to a biopesticide containing methoprene and a preparation and application method thereof. Background technique [0002] The chemical name of methoprene is 2E, 4E-11-methoxy-3,7,11-trimethyl-dodecadienoic acid isopropyl ester (Isopropyl (2E, 4E)-11-methoxy-3, 7,11-trimethy1-2,4-dodecadienoate.), is an insecticide or insect growth regulators (IGRs), which mimic the action of juvenile hormones, which can stop the life cycle (cycle) of target insects , Effective against various insects of Lepidoptera, Diptera, Coleoptera and Homoptera. Insect growth regulators do not kill insects in the way of conventional insecticides. It works by preventing larvae from developing into adults. In order to kill insects in other morphological stages, low-toxicity pesticides are usually introduced as supplements to improve The efficacy of pesticides. Because the solubility of methoprene in wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N37/36A01N25/22A01P7/04
Inventor 任建新穆小丽罗嘉银董红
Owner CHINA TOBACCO HUNAN INDAL CORP
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