论文部分内容阅读
随着生物防治工作的开展,利用蜘蛛治虫逐渐引起了人们的重视。为了解其发生情况及对农田害虫的控制作用,近年来,我们在眉县、扶风和歧山等县的川原地区对农田蜘蛛作了初步调查,现将结果整理如下: 1.种类和数量 1976年以来,在农田蜘蛛资源调查中,采集了大量蜘蛛标本,已鉴定出24科125种。其中棉田蜘蛛就有15科52种,以草间小黑蛛、丁纹豹蛛和三突花蛛等三种分布广泛、数量较多,初步确定为我市棉田蜘蛛的优势种类。
With the development of biological control, the use of spiders has gradually attracted people’s attention. In order to understand its occurrence and control of farmland pests, in recent years, we conducted a preliminary investigation on farmland spiders in the areas of Chuan-Yuan County of Meixian County, Fufeng County and Qishan County. The results are summarized as follows: 1. Species and Quantity 1976 Since the beginning of the year, a large number of spider specimens have been collected from farmland spider resource surveys, and 125 families of 24 families have been identified. Among them, there are 15 families and 52 species of spiders in the cotton field. There are three widely distributed and widely distributed spiders in the grassland, such as the small black spider, the small leopard spider and the three spider spider.