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Preparation method of pharmaceutical composition for killing wheat aphids

A composition and medicine technology, applied in the directions of botanical equipment and methods, insecticides, biocides, etc., can solve the problems of insecticidal effects that are prone to drug-resistant pests, differences in insect resistance and drug resistance, etc., and it is difficult to achieve. Drug resistance, no environmental toxicity, good biodegradation effect

Inactive Publication Date: 2018-04-10
CHENGDU AIBIKE BIOTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when this kind of chemical pesticide is promoting green and protecting the environment today, many highly toxic and high residue chemicals have been limited or discontinued. In addition, due to the different types of pests, various pests have different levels of pesticide resistance and resistance. There are large differences, so that the insecticidal effect of chemical agents is prone to drug-resistant pests, so it is necessary to propose insect repellents for different insects to prevent specific insects, but there is no corresponding report so far

Method used

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  • Preparation method of pharmaceutical composition for killing wheat aphids
  • Preparation method of pharmaceutical composition for killing wheat aphids
  • Preparation method of pharmaceutical composition for killing wheat aphids

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a pharmaceutical composition for killing wheat aphids, including the extract of Junzi, saponin extract, dry lacquer charcoal extract, eupatorium extract, thistle extract, green fruit extract, berberine extract, Green Bark Extract, Ficus Barbadensis Extract and Osthole in the following quantities:

[0024]

[0025]

[0026] Its preparation method: decoct the gentleman, soap alum, and dry lacquer charcoal with water twice, each time for 2 hours, combine the decoction, add ethanol to filter and concentrate, add 3 times the amount of water, stir fully, refrigerate for 60 hours, filter, and the filtrate Concentrate under reduced pressure to a relative density of about 1.33, and prepare the liquid medicine for later use; add water to decoct eupatorium, small thistle, green fruit, coptis, green bark, and banyan tree twice, each time for 0.5 hours, combine the decoction, filter, concentrate the filtrate, and put Cool, add ethanol to make the ethan...

Embodiment 2

[0029] This example verifies the killing rate of the medicinal composition against wheat aphids compared with common insecticides on the market.

[0030] Select the common insecticides on the market: P. lilacinus water agent, nematicide, special root thread agent, and thiamethoxam insecticide.

[0031] Group according to different insecticides, each group prepares 1000 wheat aphids in three stages of egg, larva, and adult, and then uses insecticides on wheat aphids in each stage, and tests each group of insecticides kill rate, as shown in the table below:

[0032] Table 1 The killing effect of insecticides on wheat aphids

[0033]

[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on wheat aphids in the larval state, and this product has the best insecticidal effect, and the killing effect is remarkable, even the most difficult to kill insect eggs have a good killing effect .

Embodiment 3

[0036] This example verifies the killing rate of the pharmaceutical composition on various pests.

[0037] Select 10,000 scarabs, beetles, leafhoppers, borers, pear psyllids, scale insects, spinach moths, mole crickets, burdock, and wheat aphids, and group them separately, and use the drugs prepared in Example 1 to make a drug solution of the same concentration , spray the pests of each group respectively, and after 1 hour, check the killing rate of various pests, the results are shown in the following table:

[0038] Table 2 The killing effect of the drug on various pests

[0039] group

[0040] It can be seen from the above table that the medicine prepared in Example 1 only has a good killing effect on wheat aphids, and has a very limited killing effect on other pests. This proves that this product is highly targeted and can only be used For the extermination of wheat aphids.

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Abstract

The invention discloses a preparation method of a medicinal composition for killing wheat aphids, which comprises the following steps: 1) preparing raw materials; 2) decocting gentleman, soap alum, and dry lacquer charcoal with water for two times, and preparing the medicinal liquid for later use; 3) ) Eupatorium, small thistle, green fruit, berberine, green bark, and banyan tree must be decocted twice, filtered, and the filtrate is concentrated to a relative density of 1.15; 4) Combine the liquid medicine; 5) Adjust the pH value of the solution; 6) Filter and pour Pack, sterilize, and get ready. The pharmaceutical composition described in the present invention can kill wheat aphids in a targeted manner, has good safety, good biodegradation, no pollution and irritating odor, no environmental toxicity, no residue in animals, and no damage to ecological balance. It has little impact on the crop growth environment; it has good permeability and wetness, interferes with the nervous system of insects, inhibits the synthesis and development of insect eggs, and is not easy to develop drug resistance; it has good quick effect and is suitable for widespread application in pest control.

Description

technical field [0001] The invention belongs to the field of agricultural technology development, and in particular relates to a preparation method of a medicinal composition for killing wheat aphids. Background technique [0002] Chemical agents play an important role in the control of crop diseases and insect pests, but the residues of drugs lead to the deterioration of natural ecosystems, which has become a major issue of international concern and urgently to be solved. In our country, since the 20th century, due to the single use of chemical pesticides, the harmful elements in agricultural products have exceeded the standard, which directly endangers the health and survival of the people. For this reason, the country attaches great importance to and formulated the "Medium and Long-term Science and Technology Development Program Outline" to encourage research and development Environmentally friendly fertilizers and pesticides. Today's farmers' "seeking speed" mentality i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/36A01N43/16A01P7/04
CPCA01N65/00A01N43/16A01N65/36
Inventor 黄伟
Owner CHENGDU AIBIKE BIOTECH
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