Efficient, low-toxic and environment-protective plant insect-killing extract

A plant extract and extract technology are applied in the field of plant extracts for killing insects and mites, which can solve the problems of low content, high production cost, limited application and the like, and achieve the effect of simple chemical structure and easy synthesis.

Inactive Publication Date: 2007-11-14
NORTHWEST A & F UNIV
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Among these drugs, some are more toxic, some have low content in the original plant, and the production cost is high, which greatly limits the application in the actual production of animal husbandry.

Method used

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  • Efficient, low-toxic and environment-protective plant insect-killing extract

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Embodiment Construction

[0017] The present invention relates to a plant extract for killing insects and acarids. The plant extract is the industrial alcohol extract of capillary, the active part of capillary is the extract of n-butanol part of capillary, and the acaricidal active component of the capillary extract is 4 -Methyl-7-hydroxycoumarin.

[0018] The preparation steps of capillary industrial alcohol extract are: capillary coarse powder 10g, put in a 100mL round-bottomed flask, 80mL industrial alcohol, soak at room temperature for 30min, reflux extraction in 75°C water bath for 3 times, extraction for 60min, 45min, 30min respectively, The extracts were combined, filtered through a Buchner funnel, the solvent was recovered under reduced pressure until there was no alcohol smell, and dissolved with a co-solvent such as Tween-80 to prepare a medicinal solution with a concentration of 50%.

[0019] The procedure for screening the acaricidal active parts of capillary capillary is as follows: 30 g c...

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Abstract

The present invention relates to a high-effective, low-toxicity and environment-protecting new-type plant source pesticide and miticide new medicine. The invented plant extract includes capillaries industrial alcohol extract and capillaries n-butyl alcohol extract, the pesticide and medicide active component of said capillaries alcohol extract is 4-methyl-7-umbelliferone. Besides, said invention also provides its preparation method and its concrete steps.

Description

1. Technical field: [0001] The invention relates to an insecticidal and acaricidal plant extract, in particular to a plant insecticidal extract with high efficiency, low toxicity and environmental protection. 2. Background technology: [0002] Acaridosis is an ectoparasitic disease characterized by severe skin itching, severe skin inflammation and contact transmission caused by carnivorous mites parasitizing on the surface or in the epidermis of animals. Mites are ubiquitous in all parts of the world and occur seasonally, which can reduce the digestive and absorption functions of sick animals, reduce production performance and product quality, and even cause mass death of animals, and also threaten human health. Over the years, scientists have been working on research and seeking effective control methods. [0003] At present, the control of mites is mainly based on chemically synthesized drugs, and the resulting problems of drug residues, environmental hazards and drug res...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K36/28A61P33/14A01N65/00A01P7/02
Inventor 宋晓平豆传娜程飞付明哲阮娜唐贤宝陈杰
Owner NORTHWEST A & F UNIV
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