Insecticide for stevia rebaudiana

A technology of insecticide and stevia, which is applied in the direction of insecticide, biocide, application, etc., can solve the problems of high density of larvae, harm, and induction of mosaic virus diseases, etc., and achieves low environmental pollution, good control effect, and no pollution. would produce drug resistance

Inactive Publication Date: 2017-05-10
MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Various pests and diseases are prone to occur during the planting period of stevia. The main pests of stevia during the planting period are aphids, noctuid pests, cutworms and other diseases. Aphids harm the buds and leaves of stevia, causing the leaves to curl, shrink and deform. 1. The plants are short and short, which may even induce mosaic virus disease, which will seriously affect the yield of stevia, especially in dry and rainless weather; the cutworm larvae will cut off the roots and stems of stevia seedlings, which will cause the death of stevia and lack of seedlings The phenomenon of ridge breaking will cost more manpower and material resources; noctuid pests have a wide range of insectivorous habits and large food intake.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] The stevia insecticide described in the present embodiment comprises the following raw materials in parts by weight: 23 parts of pyrethrum, 6 parts of tobacco stems, 27 parts of oleander, 13 parts of oleander, 13 parts of belladonna, 12 parts of Lycoris, There are 10 parts of Acacia beans, 15 parts of Chai Teng, 16 parts of Baibu, 16 parts of Chuanwu, and 24 parts of pokeweed.

[0020] The preparation method of insecticide for stevia as described is as follows:

[0021] (1) Tobacco stems, wisteria, belladonna and lycoris were added to water 5 times the weight of their raw materials, decocted at 90°C for 30 minutes, decocted twice, filtered, and the filtrate was concentrated to 9% of the original solution well mixed;

[0022] (2) Extract Pyrethrum, Adenocarba, and Aconitum with 85% ethanol that is 6 times the weight of their raw materials, extract twice, concentrate the extracts to 8% of their respective stock solutions, and mix well;

[0023] (3) Add oleander, acacia ...

Embodiment 2

[0027] The stevia insecticide described in the present embodiment comprises the following raw materials in parts by weight: 25 parts of pyrethrum, 5 parts of tobacco stems, 25 parts of oleander, 16 parts of oleander, 10 parts of belladonna, 14 parts of Lycoris, There are 12 parts of Acacia beans, 17 parts of Chai Teng, 15 parts of Baibu, 18 parts of Chuanwu, and 26 parts of pokeweed.

[0028] The preparation method of insecticide for stevia as described is as follows:

[0029] (1) Add tobacco stems, wisteria, belladonna and lycoris to 6 times the weight of raw materials, decoct at 100°C for 20 minutes, decoct twice, filter and take the filtrate, concentrate to 8% of the original solution well mixed;

[0030] (2) Extract Pyrethrum, Adeniti, and Aconitum with 90% ethanol that is 5 times the weight of their raw materials, extract twice, concentrate the extracts to 9% of their respective stock solutions, and mix well;

[0031] (3) Add oleander, acacia beans, pokeweed, and boluo ...

Embodiment 3

[0035] The stevia insecticide described in the present embodiment comprises the following raw materials in parts by weight: 20 parts of pyrethrum, 8 parts of tobacco stems, 30 parts of oleander, 12 parts of oleander, 15 parts of belladonna, 8 parts of Lycoris, There are 12 parts of Acacia beans, 13 parts of Chai Teng, 20 parts of Baibu, 12 parts of Chuanwu, and 18 parts of pokeweed.

[0036] The preparation method of insecticide for stevia as described is as follows:

[0037] (1) Add tobacco stems, wisteria, belladonna and lycoris to 5.5 times the weight of raw materials and decoct for 25 minutes at 95°C, decoct twice, filter and take the filtrate, concentrate to 10% of the original solution well mixed;

[0038] (2) Extract Pyrethrum, Adeniti, and Aconitum with 80% ethanol that is 5.5 times the weight of their raw materials, extract twice, concentrate the extracts to 10% of their respective stock solutions, and mix well;

[0039] (3) Add oleander, acacia beans, pokeweed, and...

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PUM

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Abstract

The invention provides an insecticide for stevia rebaudiana. The insecticide is prepared from raw materials in parts by weight as follows: 20-25 parts of pyrethrum, 5-8 parts of tobacco stems, 25-30 parts of nerium oleander, 12-16 parts of macleaya cordata, 10-15 parts of atropa belladonna, 8-14 parts of lycoris radiate, 8-12 parts of jequirity beans, 13-17 parts of wisteria, 15-20 parts of stemona, 12-18 parts of radix aconite and 18-26 parts of phytolacca acinosa. The insecticide is obtained by combining the raw materials after the raw materials are extracted. The insecticide for stevia rebaudiana is prepared from plant raw materials, has the advantages of being green and safe, free from causing pesticide resistance, low in environment pollution and the like and has a good control effect on insect damage of stevia rebaudiana.

Description

technical field [0001] The invention relates to the technical field of stevia planting, in particular to an insecticide for stevia. Background technique [0002] Stevia is a perennial herb of the genus Stevia in the Asteraceae family. The whole Stevia plant contains sugar, and the sweetness of the leaves is the highest, containing about 14% glycosides. The glycosides of the branches are equivalent to half of the leaves. Stevia leaves can be used as sugar after drying and crushing, or through ethanol precipitation Obtain stevioside, the sweetness is equivalent to 250-300 times that of white sugar, and the calories are only 1 / 300 of white sugar. Not only that, stevioside has no toxic side effects, no carcinogens, safe to eat, regular consumption can prevent high blood pressure , diabetes, obesity, heart disease, dental caries and other diseases, it is an ideal sweetener to replace sucrose. At present, it has been widely used in food, beverage, medicine, daily chemical indust...

Claims

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Application Information

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IPC IPC(8): A01N65/46A01N65/38A01P7/04
CPCA01N65/00A01N65/385A01N65/46A01N2300/00Y02A50/30
Inventor 贾德军
Owner MINGGUANG DAQUAN STEVIA PROFESSIONAL COOP
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