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仓虫扦样是粮食检疫和仓虫监测以及仓虫种群调查必经程序。近年来,随着粮食出口量逐步增加,为了较大可能地和准确地扦取到被检对象,仓虫的扦样技术尤为重要。尽管过去对单个仓虫种群的生态习性研究得较多,对仓虫扦样技术从定性方面也作过不少探讨,也规定了一些扦样标准,但是对仓虫总体分布规律方面研究还很少,特别是在扦样技术方面还不能很好地反映出在仓虫分布型改变时其相应的扦样特点。仓虫的发生常常是由多级仓虫构成的复
Worm insects sampling is the food quarantine and cercis monitoring and cercariae population investigation must pass the program. In recent years, with the gradual increase in the amount of grain exports, in order to obtain the test object with greater probability and accuracy, the sampling technique of the caterpillars is particularly important. Although in the past a large number of studies have been conducted on the ecological habits of single cercopithecidae population, we have also made a lot of qualitative studies on the sampling techniques of cercariae insects and also provided some sampling standards, but the research on the general distribution rules of cercariae Less, especially in the sampling technology is still not well reflected in the changes in the distribution of the caterpillars when the corresponding characteristics of their sampling. The occurrence of caterpillars is often a complex consisting of multi-stage caterpillars