Study On The Snails Control And Schlstosomlasls Prevention Forest And Development Of The Inhibitor

In recent years,the Yangtze River and the vast southern region of schistosomiasis disease has rebounded.To protect the lives and property of the people,kill snail which is schistosoma only intermediate hostis imminent.This paper is carried out in preparation of the inhibitor and plant forests to control snails.The design and construction of the experimental area of Snalls Control and Schlstosomlasls Prevention Forestsis one of the important components of forest blood defense project construction in China,helicides are also effective means of killing snails.In the early stage of the project,The team has identified molluscicidal activity ofthe trees that has the effect of the conch,Screening out the active ingredientconcentration much lower than the general plant extracts of the active ingredient-cepharanthine.The main task of the project is to study the results and the literature in the early stages of the project,selecting the plant grass and rattan plants that have the active ingredient,to design the model forest with the obvious effect of the conch and different topography.The building overall design of afforestation pattern refer to standards,such as “The feasibility report of ‘plant forests,control snail and cure sickness,rehabilitate and develop the waste beach lands’ ’’,“The guiding principles and design ideas of the prevention and control of the snail”,“The design and afforestation technology of the prevention and control of snail “,and making the planning and adjustment in combination with the local environment features of anhui and other places.Design to four kinds of Anhui Province where snail situation,the epidemic is more serious terrain as a model,designdifferent methods of snake disease prevention forest model.Respectively,for the scenic hilly land,the general hilly land,embankment beach and lake beach.Analyze byheir different topography,climate characteristics,environmental characteristics,make the appropriate transformation and construction.In plant planting,it is necessary to take the plant snake effectinto account,but also should follow the plant economy,safety,aesthetics,adaptability and other principles,to make a reasonable and perfect planting program.Eventually through a wide range of screening,Identify the plant species as follows:Camphor,sweet-scented osmanthus,melia,hibiscus,honeysuckle,cedar,celanot,solanum,Flowers,grass,pepper,Yunnan Huang Xin,calamus,Mexican feathers,weeping willow,thousands of vegetables,Jerusalem artichoke.Most popular chemical killer in the early years are mostly toxic,not only pollute the environment,destroy the ecology,but also the market price is relatively expensive;In the decades of suppression of action,Snail is likely to have resistance to only a few of the restorers.Therefore,in the current,in the case of snail area increased,the epidemic continues to rise,t he development of low toxicity and biodegradability of plant snails has been paid more and more attention.At present,the extraction of active ingredients of plants to develop pharmaceuticals,in the freshwater environment to kill snails is a widely used methods.However,due to the current plant spikes are mostly water immersion agent,mollusk more use of immersion,spraying method,it is easy to make water and other biological pollution,injury;killing snail effect will be volatile,diluted and other reasons greatly reduced.So we identify the effective identification of the plant source of the active ingredients of the plants-cepharanthine.Using itto make development of antihiller and arry out different formulations(including granules,powders,water,etc.),dosage and use methods and other aspects of the study.Use of embedtechnology so that the pharmaceutical in the water also has a certain sustained release effect,kill snails Better,effectively cut off the transmission of schistosomiasis.The use of sodium alginate embedded thalidomide,ciprozine red alkali and other plants with snake activity.The preparation of the spinach,so that it has a good sustained release,to kill snails more efficient.In the later stage,the sustained-release effect of the prepared drug was tested by high-performance liquid chromatography,experiments show that the drug embedding effect is good,48 h after the sniper solubility is only8.66%.Finally,the efficacy test of the preparation of the molluscicides from the plant roots was carried out,experiments show that,The concentration of 50 g / L and 100 g / L molluscicidal effect 24 h,the mortality of Hubei snails were 100%,these two kinds of concentration of snails on the Hubei snail has a significant role in the killing.