Camptothecin plant molluscacide and preparation and application method thereof

A technology of camptothecin and molluscicide, which is applied in the field of camptothecin plant molluscicide to achieve the effects of high economic value, simple production process and convenient use

Inactive Publication Date: 2009-09-02
HUBEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This new use of phytocamptot

Method used

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  • Camptothecin plant molluscacide and preparation and application method thereof
  • Camptothecin plant molluscacide and preparation and application method thereof
  • Camptothecin plant molluscacide and preparation and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Get 150kg of camptothecin fresh leaves before the blooming stage, adopt pulverization--soaking in ethanol--ethanol recovery--organic solvent chloroform extraction and crystallization method to extract 0.11kg of camptothecin, and prepare 55.5kg of camptothecin granular molluscicide .

Embodiment 2

[0029] Get 1000kg of camptothecin fresh leaves before the blooming stage, adopt pulverization--ethanol soaking--ethanol recovery--organic solvent chloroform extraction and crystallization method to extract 0.7kg of camptothecin, and prepare 345.7kg of camptothecin granular molluscicide .

[0030] See Appendix 1 for application examples, and Appendix 2 for impacts on fish.

[0031] Annex 1: the test report of the mollusc control test (retest) of the present invention

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Abstract

The invention provides a camptothecin plant molluscacide and a preparation and application method thereof. The crystalline powder of the camptothecin is prepared into 0.05-0.1g/L of molluscacide aqueous solution and molluscacide pelletized granule with camptothecin content of 0.25-0.30 percent. The camptothecin plant molluscacide is pure chemical component and meets the requirement of environmental protection, and the oncomelania control effect of the Camptothecin plant molluscacide can be evaluate in a standardized way; and the invention has good effect of expelling and killing the oncomelania and also has the advantages of simple manufacturing process, lower cost, convenient storage and transportation, no pollution to the environment, no harm to human, animals and fish and obvious economic benefit, social benefit and ecological benefit.

Description

technical field [0001] The invention relates to a camptothecin plant molluscicide for killing snails and a preparation and application method thereof. Background technique [0002] Schistosomiasis is a disease that seriously endangers human health. Oncomelania is an indispensable link in the transmission of schistosomiasis, and mollusc control can effectively reduce the transmission of schistosomiasis. At present, there are roughly three mollusc control methods: artificial mollusc control, chemical drug mollusc control and biological mollusc control. Manual mollusc control is labor-intensive, time-consuming and expensive, and chemical drugs are expensive, have a short validity period, are poisonous to humans, livestock, and fish, and are likely to cause environmental pollution. [0003] In order to avoid the pollution of the environment by chemical drug molluscicides, people always want to obtain pure natural plant molluscicides. Plant molluscicides such as rhizome powder...

Claims

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Application Information

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IPC IPC(8): A01N43/90A01N25/12A01P9/00
Inventor 杨明波王文涛杨姗姗肖玉杰
Owner HUBEI UNIV
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