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Preparation method of pharmaceutical composition for killing whiteflies

A composition and technology for whitefly, applied in the directions of botanical equipment and methods, insecticides, biocides, etc., can solve the problems of insect resistance and drug resistance differences, and insecticidal effects are prone to drug-resistant insects, etc. No environmental toxicity, not easy to drug resistance, good safety 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 whiteflies
  • Preparation method of pharmaceutical composition for killing whiteflies
  • Preparation method of pharmaceutical composition for killing whiteflies

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This embodiment provides a pharmaceutical composition for killing whitefly, including extracts of babubu extracts, dry lacquer charcoal extracts, crane grass buds extracts, Yu Liren extracts, chamaejasbae extracts, Gentiana chinensis extracts, and jackba extracts , notopterygium extract, xuejianchou extract and xylin, the components are as follows:

[0024]

[0025]

[0026] Its preparation method: adding water to decoct babu, dry lacquer charcoal, and crane grass sprouts twice, each time for 2 hours, combine the decoction, add ethanol to filter and concentrate, add 2 times the amount of water, fully stir, refrigerate for 48 hours, filter, The filtrate is concentrated under reduced pressure to a relative density of about 1.28, and the medicinal liquid is used for later use; Yu Liren, chamaema chamaejasme, Gentiana chinensis, Qianjinba, notopterygium, and xuejianchou are decocted twice, each time for 0.5 hours, combined decoction, filtered, and concentrated filtrate...

Embodiment 2

[0029] This example verifies the killing rate of the pharmaceutical composition against whitefly compared with common insecticides in 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 whiteflies in three stages of eggs, larvae and adults, and then uses insecticides on whiteflies 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 whitefly

[0033]

[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on whitefly 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 have 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, vetch, and whitefly, and group them respectively, 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] It can be seen from the above table that the medicine prepared in Example 1 only has a good killing effect on whitefly, 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 whitefly.

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Abstract

The invention discloses a preparation method of a pharmaceutical composition for killing whiteflies. The method comprises the following steps of 1, preparing raw materials; 2, decocting radix stemonae, dry lacquer resin and buds of hairyvein agrimony with water twice, and reserving pesticide liquid for use; 3, decocting bunge cherry seeds, radix euphorbiae lantu, gentiana macrophylla, flemingia philippinensis, notopterygium and teucrium viscidum with water twice, filtering the mixture, and concentrating filtrate until the relevant density reaches 1.15; 4, mixing the pesticide liquid; 5, adjusting a pH value of a solution; 6, filtering, filling and sterilizing the pesticide liquid to obtain a pharmaceutical composition. The pharmaceutical composition can be used for eradicating the whiteflies in a targeted way, is good in security and biodegradation and free of pollutants, pungent odor and environmental toxicity effect, does not break ecological balance and has a small influence on thecrop growth environment, and no residue remains in animals. The pharmaceutical composition interferes with central nervous systems of the whiteflies, restrains the formation and development of whitefly eggs, is not prone to drug resistance and is good in permeability, wettability and fast-acting property and suitable for broad application and promotion in insect pest prevention and controlling.

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 whitefly. 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 is no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/46A01N63/04A01P7/04
CPCA01N63/30A01N65/00A01N65/46
Inventor 黄伟
Owner CHENGDU AIBIKE BIOTECH
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