玉米螟和桃蛀螟在玉米上的生态位及其种间竞争  

The niche of corn borer and peach borer and their interspecific competition in corn:

作　　者：吕仲贤[1,2,3] 杨樟法[1,2,3] 王桂跃[1,2,3] 卜卫良 

机构地区：[1]浙江省农业科学院植物保护研究所 [2]浙江省东阳玉米研究所 [3]浙江省东阳市植保站

出　　处：《浙江农业学报》1995年第1期31-34,共4页Acta Agriculturae Zhejiangensis

摘　　要：通过１９９３和１９９４两年的田间调查，测定了玉米螟和桃蛀螟在玉米田间的生态位和种间竞争系数。结果表明：桃蛀螟已成为玉米的主要害虫之一。两虫在玉米上的时间、空间和营养生态位宽度、生态位重叠非常相近，其生态位相似性比例均大于０９０；在同一玉米部位两虫共存比例小于１０％，其种间竞争系数大于０９８％。说明两虫在玉米上的竞争激烈。The niche and interspecific competition coefficient of corn borer (Ostrinia furnacalis) and peach borer (Dichocrocis punctiferalis) were estimated by means of the field investigating in 1993, 1994. The results showed: the peach borer has been one of the most important corn insect pest. The temporal, spatial and nutritive niche breadth and niche overlap of corn borer and peach borer are very similarities, their percentage similarity of niche are over 0.90. Their ratio of coexistence in same location of corn plant is less 10% and the interspecific competition coefficient are more than 0 98.

关 键 词：玉米 玉米螟 桃蛀螟 生态位 种间竞争 

分 类 号：S435.132[农业科学—农业昆虫与害虫防治]