蕉园蜘蛛种类及其数量消长调查

Investigation on the species of spider and its fluctuation in Banana Field

初步调查香蕉园的蜘蛛约有20多种,是香蕉害虫的重要天敌,主要栖息于香蕉植株的上部和基部,中部则较少。狼蛛类、蚁蛛、蝇虎、沟瘤蛛等数量较多,常年均可见,而其余种类则在某些月份发生。与水稻田蜘蛛比较,发现蕉园中大多数蜘蛛种类与稻田的相似,仅少数种类是稻田中未有的。

According to the preliminary investigation, there were more than 20 species of spider in banana fields, which were important natural enemies of banana pest insects. Most species of spider inhabitat on higher and lower part of banana plant and less species inhabitat on middle part of banana plant. Density of wolf spider, Myrmarachne gisti, Plexippus, Ummelita were high, but others were low. Comparing with the species of spider in rice field it was shown that most species could be found in the paddy field, and only few species didnot inhabitat in the paddy field.