Response of the Fruit Fly ParasitoidDiachasmimorpha longicaudata(Hymenoptera: Braconidae) to Host-Fruit Stimuli
作者:
Russell H. Messing,
Eric B. Jang,
期刊:
Environmental Entomology
(OUP Available online 1992)
卷期:
Volume 21,
issue 5
页码: 1189-1195
ISSN:0046-225X
年代: 1992
DOI:10.1093/ee/21.5.1189
出版商: Oxford University Press
关键词: fruit fly;tephritid;host-habitat finding
数据来源: OUP
摘要:
Visual and olfactory stimuli used by adult, insectary-reared larval parasitoids,Diachasmimorpha longicaudata(Ashmead), of tephritid fruit flies were examined in the context of host microhabitat location. Mated female parasitoids used the odor of ripe, uninfested fruits to orient toward sticky traps simulating host-habitats (fruits) in field-cage studies. Females showed a significant preference for some fruits (e.g., orange, guava) over others (e.g., apple). All fruit odors tested except apple were significantly more attractive to females than odorless controls. Male parasitoids, in contrast, were not attracted to any of the fruit odors tested. Males, however, readily distinguished between traps of different colors, with preferences reflecting an interaction of the colors' hue and intensity. Females' discrimination among colors was related to the presence or absence of fruit odors.
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