SYNCHRONY AND IMPACT OF AMITUS-HESPERIDUM [HYM, PLATYGASTERIDAE] ON ITS HOST, ALEUROCANTHUS-WOGLUMI [HYM, ALEYRODIDAE] IN SOUTHERN FLORIDA

被引:17
作者
DOWELL, RV
机构
[1] Agricultural Research Center, Florida, 33314
来源
ENTOMOPHAGA | 1979年 / 24卷 / 03期
关键词
D O I
10.1007/BF02374235
中图分类号
Q96 [昆虫学];
学科分类号
摘要
The synchrony of the citrus blackfly (CBF)Aleurocanthus woglumiAshby and its parasitoid Amitus hesperidumSilvestri was studied in southern Florida. A. hesperidum adults emerge from 4th instar nymphs 160-300 thermal units after CBF adults. This insured excellent temporal synchronization between the parasitoids and the early CBF instars they prefer since egg to 3rd instar nymph in CBF takes 380 thermal units. Although A. hesperidum parasitized only 29% of the surviving 4th instar CBF, it was the factor responsible for the observed decline in the CBF population level in southern Florida. © 1979 Le François.
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页码:221 / 227
页数:7
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