期刊
BIOLOGICAL CONTROL
卷 30, 期 2, 页码 351-359出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.biocontrol.2003.10.006
关键词
Cryptophlebia leucotreta; egg parasitoid; augmentative biological control; gamma-radiation; sterile insect technique
We determined the acceptability and suitability of eggs of Cryptophlebia leucotreta (Meyrick) to parasitization by Trichogrammatoidea cryptophlebiae Nagaraja under no choice and choice situations. Male and female moths were treated (T) with 150 or 200 Gy of gamma-radiation, inbred or out-crossed to normal untreated (N) counterparts, and eggs laid by different crosses were offered to T cryptophlebiae as host material. Newly laid (24-h-old) eggs, as well as eggs that were 48- and 72-h-old were evaluated. In general, all egg treatments in the no choice experiments were acceptable for oviposition and suitable for parasitoid development. However, significant differences in the number of parasitized eggs were detected when one member of the host cross, particularly the female, was treated with gamma-radiation or when the host egg age was greater than 24h. No significant differences were detected in any of the choice experiments. Our results suggest that T cryptophlebiae would accept, successfully develop in, and emerge from FCM eggs laid by the different crosses that would theoretically be present in the field under a sterile insect release program for false codling moth (Nfemale x Tmale, Tfemale x Nmale, and Tfemale x Tmale) and suggest that further evaluations combining releases of irradiated moths and parasitoids are warranted. Published by Elsevier Inc.
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