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Pharmaceutical composition for killing rice planthoppers

A composition and a technology for rice planthopper are applied in the field of medicinal compositions for killing rice planthoppers, which can solve the problems that the insecticidal effect is prone to appear drug-resistant pests, the resistance of pests and differences in drug resistance, etc. 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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  • Pharmaceutical composition for killing rice planthoppers
  • Pharmaceutical composition for killing rice planthoppers
  • Pharmaceutical composition for killing rice planthoppers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] This example provides a pharmaceutical composition for killing rice planthoppers, including the extract of Gentleman, Lei Wan extract, pumpkin seed extract, polygala extract, Senecio extract, Renmian leaf extract, and ginseng extract extract, Vitex japonica extract, magnolia extract and diazinon in the following quantities:

[0024]

[0025]

[0026] Its preparation method: decoct Junzi, Lei Wan, and pumpkin seeds 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 48 hours, filter, and the filtrate reduces Concentrate under pressure to a relative density of about 1.15, and prepare the liquid medicine for later use; Add polygala, Senecio, Renmian leaves, Quanshen, Vitex japonica, Magnolia magnolia, add water and decoct twice, each time for 1 hour, combine the decoction, filter, concentrate the filtrate, and put Cool, add ethanol to make the ethanol conte...

Embodiment 2

[0029] This example verifies the killing rate of the medicinal composition against rice planthopper 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, prepare 1000 rice planthoppers in three stages of eggs, larvae, and adults for each group, and then use insecticides on rice planthoppers in each stage to test each group of insecticides The killing rate of the agent is shown in the table below:

[0032] Table 1 The killing effect of insecticides on rice planthopper

[0033]

[0034] It can be seen from the above table that each group of insecticides has the highest killing rate on rice planthoppers 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, vetch, and rice planthoppers, 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 rice planthoppers, and has a very limited killing effect on other pests. This proves that this product is highly targeted and can only Used for killing rice planthoppers.

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Abstract

The invention discloses a pharmaceutical composition for killing rice planthoppers, which includes the extract of Gentleman, Lei Wan extract, pumpkin seed extract, polygala extract, Senecio extract, Renmian leaf extract, and ginseng extract extract, Vitex japonica extract, magnolia extract and diazinon. The pharmaceutical composition described in the present invention can kill rice planthoppers in a targeted manner, and has no toxic or side effects on natural enemies of rice planthoppers, has good safety, good biodegradation, no pollution and pungent smell, and no environmental toxicity , there is no residue in the animal body, does not destroy the ecological balance, and has little impact on the crop growth environment; it has good permeability and moisture, interferes with the nervous system of the insect body, 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 pharmaceutical composition for killing rice planthoppers. 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 not suitable...

Claims

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Application Information

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IPC IPC(8): A01N65/30A01N57/16A01P7/04
CPCA01N65/00A01N57/16A01N65/30
Inventor 黄伟
Owner CHENGDU AIBIKE BIOTECH
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