不同寄主植物对朱砂叶螨种群增殖作用研究

在室内研究了6种寄主植物对朱砂叶螨种群内在增殖力的影响.结果显示,朱砂叶螨嗜食寄主植物为大豆、绿豆,其次是西瓜、棉花,非嗜食植物为芝麻和玉米.在不同寄主上,雌螨平均历期、平均单雌产卵量、净生殖率、内禀增长率和种群加倍天数均有明显不同.根据各作物上朱砂叶螨种群动态模型计算,棉花和绿豆或大豆间作,1月后螨害程度比棉花单作增加5.7倍或6.7倍;和芝麻或玉米套种,则不利于螨害发展.因此,建议棉花宜与芝麻、玉米间作,避免与绿豆和大豆套种.

The Influences of Different Host Plant to Development and Reproduction of Carmine Spider Mite, Terany chus Cinnabarinus

The influences of six host plant which included soybean, mungbean, watermelon, cotton, sesame, and maize to development and production of T. cinnabarinus were investigated at laboratory in 1987.The results showed there were much different in the mean generation time, innate rate of increase, net reproductive rate and the day of double population for reared on different host plant. Laboratory studies show that the mite prefer to mungbean, soybean, cotton, maize and sesame in order. In this case, that the cotton, can be interplant or intercorpped with sesame and maize, and not suitable for mungbean or watermelom for the purpose of reducing demage of carmine spider mite.