论文部分内容阅读
我区饮食店众多,约有数百家。由于饮食店食品丰富,温度适宜,给蟑螂栖息繁殖创造了有利条件。为摸清饮食店蟑螂种群分布及其变迁情况,我们曾于1980及1992年抽查了部分饮食店。现将结果小结如下: 一、调查方法:1980年5～8月份,我们采用目测搜索法,重点调查厨房、餐厅、仓库。调查时借助手电筒光,在蟑螂各个栖息场所仔细搜索,详细记录蟑螂种类及数量。1992年4～12月份,我们结合蟑螂密度监测,采用粘纸(9×19cm)法调查,将粘获的蟑螂进行分类、计数。二、结果与分析: 1.1980年调查28家,受侵害25家,侵害率
Many restaurants in my area, about hundreds. Due to rich food stores, the temperature is suitable for roach habitat breeding has created favorable conditions. In order to find out the distribution and changes of the cockroach population in the restaurant, we conducted a survey of some restaurants in 1980 and 1992. The results are summarized as follows: First, the survey method: May-August 1980, we use visual search method, focusing on the investigation of the kitchen, dining room, warehouse. Investigation with flashlight light, cockroaches in various habitats carefully search, detailed records of species and quantity of cockroaches. From April to December 1992, we investigated the density of cockroaches and investigated them by the method of sticking paper (9 × 19cm). The cockroaches were sorted and counted. Second, the results and analysis: 1. Survey of 1980 1980, affected 25, infringement rate