Preparation method of drug composition for killing out prodenia litura

A technology for Spodoptera litura and a composition is applied in the field of preparation of a medicinal composition for killing Spodoptera litura, which can solve the problems that the insecticidal effect is prone to drug-resistant pests, and the insect resistance and drug resistance are different, and achieve the problem that the insecticidal effect is not easy to resist. Medicinal properties, no environmental toxicity, good safety effect

Inactive Publication Date: 2018-02-16
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 drug composition for killing out prodenia litura
  • Preparation method of drug composition for killing out prodenia litura
  • Preparation method of drug composition for killing out prodenia litura

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This example provides a pharmaceutical composition for killing Spodoptera litura, including extracts of Rhizoma chinensis, extracts of pumpkin seeds, extracts of Zanthoxylum bungeanum, extracts of C. extract, millennium extract, betel extract and diazinon, the amounts are as follows:

[0024]

[0025]

[0026] Its preparation method: decoct Dafengzi, pumpkin seeds, and Zanthoxylum bungeanum twice with water, 2 hours each time, 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 decompressed Concentrate to a relative density of about 1.27, and prepare the liquid medicine for later use; Add water for decoction twice, each time for 0.5 hours, combine the decoction, filter, and concentrate Let the filtrate cool, add ethanol to make the ethanol content 65%, let it stand overnight, filter, concentrate the filtrate under reduced pressure to a relative density of 1...

Embodiment 2

[0029] This example verifies the killing rate of the pharmaceutical composition against Spodoptera litura 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] Grouping according to different insecticides, each group prepares 1000 each of Spodoptera litura in three stages of eggs, larvae and adults, and then uses insecticides on Spodoptera litura in each stage respectively, and tests each group to kill Spodoptera litura. Insecticide kill rate, as shown in the table below:

[0032] Table 1 The killing effect of insecticides on Spodoptera litura

[0033]

[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on Spodoptera litura in the larval state. 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, bonito, and spodoptera litura, and group them respectively, and use the medicines prepared in Example 1 to make medicines of the same concentration. liquid, 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 Spodoptera litura, and has a very limited killing effect on other pests. This proves that this product is highly targeted and can only Used for killing Spodoptera litura.

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Abstract

The invention discloses a preparation method of a drug composition for killing out prodenia litura. The method comprises the following steps of (1) preparing raw materials; (2) adding water for decocting hydnocarpus anthelmintica, semen cucurbitae and Sichuan pepper for twice, and obtaining a medicine liquor for standby use; (3) adding water for decocting herba swertiae davidi, inula flower, radixscrophulariae, semen euryales, obscured homalomena rhizome and bete pepper for twice, filtering, and concentrating a filter liquor until the relative density is 1.15; (4) merging the medicine liquors; (5) adjusting a pH value of the solution; (6) filtering, filling, and sterilizing to obtain the drug composition. The drug composition provided by the invention can be specifically used for killingout the prodenia litura, has good safety, good biodegradation, no pollution and pungent smell, no environmental toxicity, and no residue in animals, does not damage ecological balance, and has less influence on a crop growth environment; has better permeability and wettability, interferes nerve center systems of polypide, inhibits worm egg synthesis development, and is not easy to occur tolerance;has a good fast-acting property, and is suitable to be widely popularized and applied 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 Spodoptera litura. 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" ment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N65/40A01N57/16A01P7/04
CPCA01N57/16A01N65/00A01N65/40Y02A50/30
Inventor 黄伟
Owner CHENGDU AIBIKE BIOTECH
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