Comparative studies on parasitism of achycrepoideus vindemmiae (Rondani) reared on housefly and fruit fly pupae
Author of the article:ZHOU He-Feng1 , ZHENG Jin-Tu2, ZHANG Tong-Xin2 , XU Yong-Jiang1,CHEN Zhong-Mei3 , DUAN Bi-Sheng3 ,HU Hao-Yuan3**
Author's Workplace：(1. Forestry Special Technology Popularization Center of Cixi, Cixi 315300, China; 2. Ningbo Technology Extension Center for Forestry and Specialty Forest Products, Ningbo 315012, China; 3. Key Laboratory of Biotic Environment and EcologicalSafety in Anhui Province, College of Life Sciences, Anhui Normal University, Wuhu 241000, China)
Key Words： parasitoid wasps, pest insects, biological control, substituted hosts, fruit flies
Abstract：
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[Objectives] Pachycrepoideus vindemmiae is a parasite of fruit flies that is an important biological control agent of these pests. Whether this parasitoid can be reared on housefly pupae was investigated. [Methods] The host preferences of parasitoids reared on housefly or fruit fly pupae were compared. The offspring size, longevity, oviposition duration, productivity, and offspring sex ratio from females reared on these two types of hosts were also compared. [Results] Housefly pupae were significantly larger than fruit fly pupae, and parasitoids that developed from housefly pupae were also larger. The longevity, oviposition duration, number of offspring per female of female parasitoids reared on housefly and fruit fly pupae were (13.4 ± 4.11) and (3.94 ± 2.49) d, (11.4 ± 4.11) and (3.13 ± 2.42) d, (34.31 ± 31.83) and (7.88 ± 3.58), respectively. The host preferences of parasitoids reared on the two kinds of hosts were similar. [Conclusion] The results suggest that P. vindemmiae reared on housefly pupae were healthier than those reared on fruit fly pupae, and that housefly pupae are suitable hosts for rearing P. vindemmiae for the control of fruit fly pests in waxberry orchards.