Insecticidal composition

A technology of insecticidal composition and extract, applied in the direction of insecticide, acaricide, biocide, etc., to achieve the effect of delaying drug resistance, overcoming and drug resistance

Inactive Publication Date: 2018-01-26
赖丰光
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Embodiment 1

[0017] Example 1 Extraction method of plant tissue extract A.

[0018] The extraction method of plant tissue extract A is as follows: 60 parts of dried roots of Sophora flavescens, 70 parts of tobacco leaves, 20 parts of seeds and leaves of neem tree, 10 parts of pyrethrum flowers, respectively mashed with a tissue grinder and mixed together , add 10 parts of phenylethylphenol polyoxyethylene ether, 10 parts of methyl oleate, 280 parts of deionized water, stir with the mixer for 5 minutes, and place the mixed liquid in a centrifuge at 4000 rpm for 25 minutes Afterwards, the supernatant was taken to obtain the plant tissue extract A; wherein the mass fraction ratio of dry roots of Sophora flavescens, tobacco leaves, seeds and leaves of neem, and pyrethrum flowers was 6:7:2:1 The tobacco leaves, the seeds and leaves of the neem tree, and the pyrethrum flowers are all fresh plant tissues; the fresh plant tissues refer to plant tissues whose water loss rate is below 5% after the p...

Embodiment 2

[0019] The preparation method of a kind of insecticidal composition described in embodiment two.

[0020] Get some parts of the plant tissue extract A that the technical scheme that the technical scheme that the embodiment one makes is made, some parts of methomyl, A and methomyl are mixed and placed in the container and cut 20 parts with a shearing machine of 6000 revolutions per minute. In minutes, the insecticidal composition is prepared.

[0021] A and methomyl prepared by the method described in Example 2 of Table 1 were mixed in different ratios to prepare the insecticidal composition.

[0022]

Embodiment 3

[0023] Embodiment 3 Experiments on the killing effect of various pests.

[0024] Table 2 According to the dosage in Table 1, each embodiment of the present invention is used to control cotton bollworm by spraying.

[0025]

[0026] The data recorded in Table 2 shows that the mass fraction of plant extracts and methomyl has a synergistic effect on cotton bollworm in the range of 1:1 to 14:1, and the insecticidal effect is when the mass fraction of plant extracts is 4:1 optimal.

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Abstract

The invention discloses an insecticidal composition. The insecticidal composition contains a plant tissue extract product A and methomyl, wherein the plant tissue extract product A is extracted from amixture of radix sophorae flavescentis dried root, tobacco leaves, azadirachtin seeds and leaves, and pyrethrum flowers, and mixing of the plant tissue extract product A and methomyl has synergisticinteraction for preventing and treating cotton bollworm; the tobacco leaves, the azadirachtin seeds and leaves, and the pyrethrum flowers are fresh plant tissue; and the fresh plant tissue is the plant tissue having a dehydration rate being lower than 5% after departing from growth environment; and the insecticidal composition is suitable for preventing and treating cotton bollworm.

Description

technical field [0001] The invention relates to an insecticidal composition; specifically, it provides a mixture containing plant tissue extract A and methomyl, wherein A is extracted from the dried root of Sophora flavescens, leaves of tobacco, seeds and leaves of neem tree, and a mixture of pyrethrum flowers; Combination of botanical pesticides and chemical pesticides and their application fields. Background technique [0002] Sophora flavescens, the name of traditional Chinese medicine. It is the dried root of the leguminous plant Sophora flavescens, excavated in spring and autumn, remove the root head and small branches, wash and dry, or slice and dry while fresh. Its bitter, cold. It has the functions of clearing away heat and dampness, killing parasites and diuresis. For febrile dysentery, hematochezia, jaundice and anuria, leucorrhea, swollen vulva itching, eczema, eczema, skin itching, mange and leprosy, external treatment of trichomonas vaginitis. [0003] Nicot...

Claims

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Application Information

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IPC IPC(8): A01N65/38A01N47/24A01P7/04A01P7/02
CPCY02A50/30
Inventor 不公告发明人
Owner 赖丰光
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