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Preparation method of medicinal composition for killing ostrinia nubilalis

A composition and technology for corn borer, applied in the directions of botanical equipment and methods, pesticides, biocides, etc., can solve the problems of pest resistance and drug resistance differences, and insecticidal effects are prone to drug-resistant pests, etc. No environmental toxicity, not easy to drug resistance, 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 medicinal composition for killing ostrinia nubilalis
  • Preparation method of medicinal composition for killing ostrinia nubilalis
  • Preparation method of medicinal composition for killing ostrinia nubilalis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a pharmaceutical composition for killing corn borer, including Torreya chinensis extract, Tripterygium vine extract, aloe extract, saffron extract, Sophora japonica extract, Huangguosha extract, chamaejasma extract, Cucumber Kernel Extract, Polygonatum Polygonatum Extract and Azadirachtin in the following quantities:

[0024]

[0025]

[0026] Its preparation method: decoct Torreya chinensis, Tripterygium wilfordii, and aloe with water twice, each time for 2 hours, combine the decoction, add ethanol to filter and concentrate, add 3 times the amount of water, fully stir, refrigerate for 48 hours, filter, and the filtrate is concentrated under reduced pressure When the relative density is about 1.27, the medicinal liquid is set aside; saffron, pagoda japonica rice, yellow fruit eggplant, chamaema chamaema, cucumber kernel grass, Polygonatum odoratum are decocted twice, each time for 0.5 hours, combined decoction, filtered, and concentrated fi...

Embodiment 2

[0029] This example verifies the killing rate of the medicinal composition against corn borer 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 corn borers in three stages of eggs, larvae and adults, and then uses insecticides on corn borers 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 corn borer

[0033]

[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on the corn borer in the larval state, and this product has the best insecticidal effect, and the killing effect is remarkable, even the eggs that are most difficult to kill also 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 corn borers, and group them separately, and use the medicine prepared in Example 1 to make a medicine 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] As can be seen from the above table, the medicine prepared in Example 1 only has a good killing effect on corn borer, 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 corn borer.

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Abstract

The invention discloses a preparation method of a medicinal composition for killing corn borer, comprising the following steps: 1) preparing raw materials; 2) decocting Torreya japonica, Tripterygium wilfordii and aloe vera with water for two times, and the medicinal liquid is ready for use; 3) saffron, Sophora japonica rice, Huangguo eggplant, wolf poison, cucumber kernel grass, and Polygonatum japonica were boiled twice with water, filtered, and the filtrate was concentrated to a relative density of 1.15; 4) Combine the medicinal liquids; 5) Adjust the pH value of the solution; 6) Filter , filling, sterilization, that is. The pharmaceutical composition described in the present invention can kill the corn borer 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 growing environment of crops; it has good permeability and wettability, interferes with the nervous central system of the insect body, inhibits the synthesis and development of eggs, and is not prone to drug resistance; it has good quick-acting properties 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 corn borer. 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 resolved. 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): A01N65/42A01N43/90A01P7/04
CPCA01N65/00A01N43/90A01N65/42
Inventor 黄伟
Owner CHENGDU AIBIKE BIOTECH
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