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本文报导了1980～1982年在广西南部稻区蜘蛛种群动态的研究结果。南部稻区蜘蛛种群,分布普遍数量较多的有食虫瘤胸蛛、拟环纹狼蛛、拟水狼蛛、四斑锯螯蛛和八斑球腹蛛等十三种。全年发生总量以食虫瘤胸蛛和拟环纹狼蛛最多,是构成南部平原稻区最主要的优势种群。文中揭示了南部平原稻区自然蜘蛛种群数量季节性变动规律及施用化学农药的影响。早稻本田,以食虫瘤胸蛛最多;晚稻本田前、中期,微蛛和狼蛛种群数量相当,后期狼蛛略高于微蛛。自然保护区蜘蛛的数量和增长速率,早稻均高于晚稻。文中分析了南部平原稻区,不施用或少用化学农药,以微蛛和狼蛛为主的混合种群对稻飞虱的控制效能,早稻高于晚稻,应注意保护。
This article reports the results of the study on the dynamics of spiders in rice fields in southern Guangxi from 1980 to 1982. Spiders in the southern rice area, the distribution of the more widespread number of insects tumor thorax spider, intertwined wolf spider, wolf spider mites, four-spotted spider spider and eight-spot spider spider thirteen species. The annual occurrence of the total amount of insects thoracic spider and intertwined tarantula spider most is to form the southern plains rice main dominant population. The article reveals the seasonal variation of the natural spider population in the southern plain rice area and the effects of applying chemical pesticides. Early rice Honda, the most insects tumor thoracic; late rice Honda early, medium, micro-spider and tarantula population number, the late wolf spider slightly higher than the micro-spider. The number and growth rate of spiders in nature reserves were higher in early rice than in late rice. In this paper, the control efficiency of mixed populations dominated by micro-spider and tarantula on rice planthopper in southern plains was studied. No pesticides were applied or used less pesticides. The early rice was higher than the late rice, and should be protected.