Method for controlling propagation of schistosomiasis in lake regions

Abstract

The invention provides a method for controlling propagation of schistosomiasis in lake regions. The method is characterized in that one or more or all of capsella bursa-pastoris, crescent euphorbia, wild carrot, sedge, Indian mock-strawberry herb, dandelion, clover, tokyo violet herb, artemisia selengensis turcz, field thistle, crescent euphorbia, wormwood, buttercup, wild carrot and the like are grown on the lake regions. The method uses allelopathy of herbaceous plant in lake regions to control schistosoma miracidium to infect oncomelania so as to achieve the aim of controlling the schistosomiasis in lake regions. The invention discloses that certain plants collected from breeding place of the oncomelania, such as the capsella bursa-pastoris, the crescent euphorbia, the wild carrot, the sedge, the Indian mock-strawberry herb, the dandelion, the clover, the tokyo violet herb, the artemisia selengensis turcz, the field thistle, and the like, have obvious rejection on Japanese schistosoma miracidium; and soak solutions of other plants, such as the crescent euphorbia, the wormwood, the buttercup, the wild carrot, and the like, have obvious killing effect on miracidium. The method has the advantages that the aim of protecting human from infection of schistosomiasis can be realized without killing the oncomelania, and has low cost and no environmental pollution.

Description

technical field [0001] The invention relates to a method for controlling the spread of schistosomiasis, in particular to a method for controlling the spread of schistosomiasis, in particular to controlling the spread of schistosomiasis by using beach herbal plants. Background technique [0002] Plants usually volatilize chemical substances into the air or soil through stems, leaves, and roots, and some rotting branches and leaves also continuously release chemical substances to the environment. Under natural conditions, the growth of plants has different degrees of growth promotion or Inhibition, and even cause the death of some biological individuals, this other sensory effect of plants exists widely in nature. [0003] In the 1930s, people had discovered that plants had an effect on other organisms around them. In the mid-1960s, some people found that some plants, such as motherwort, could inhibit the growth of snails or kill snails. Oncomelania extinct [Refer to: Li Jinz...

AI Technical Summary

Problems solved by technology

The currently used chemical molluscicides are more expensive and have environmental pollution problems, so plant molluscicides are getting more and more attention

At present, mollusc control plants are used to kill molluscs, and most of them are: 1. The extract liquid of plant active ingredients is used to kill molluscs. However, because the concentration of plant active ingredients is generally very low, certain equipment and conditions are required to extract plant active ingredients, so the cost is relatively high.

In addition, molluscicide using plant active ingredients generally needs to reach a certain concentration. Due to the complex environment of waters with snails, the concentration of plant active ingredients will change, so that the mollusc control cannot achieve the expected effect.

Moreover, the plant active ingredient extracts generally have a slower killing effect on Oncomelania snails

In addition, the distribution of plants varies from place to place, and the cost of mollusc control is also increased when they are transported from the place of origin to the epidemic area. These are the factors that restrict the widespread use of plant active ingredient extracts; cost, make full use of molluscicide plant resources, and also use fresh molluscicide plants to directly soak in snail-bearing waters to kill molluscs, but because this method often makes the water body in snail-bearing waters deteriorate and stinks, which seriously pollutes the environment, it can only be used for small area of ​​water

With this method, sometimes the concentration of the water immersion solution changes greatly due to the amount of plant input, and the effect is extremely unstable, and this method is not suitable for terrestrial snails, thus seriously restricting its application range

3. The snail control of herbal plants researched in recent years cannot fundamentally achieve the purpose of controlling schistosomiasis

In recent years, some scholars in my country have discovered that planting woody plants such as maple poplar, poplar, and oleander on the beach can reduce the density of oncomelania on the beach and play a role in controlling the oncomelania, and then they are planted in large quantities on the beach. However, these plants are woody plants, which are not conducive to flood control if they can hold back floods.

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