Olfactory responses of Aphidius gifuensis to odors of host plants and aphid‐plant complexes |
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| Authors: | Song Yang Rui Xu Shuo‐Yuan Yang Rong‐Ping Kuang |
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| Affiliation: | 1. Key Laboratory of Forest Disaster Warning and Control in Yunnan Province, Southwest Forestry University, Kunming;2. Life Sciences School, Yunnan University, Kunming;3. Yuxi Tobacco Co. Ltd., Yuxi, Yunnan Province, China |
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| Abstract: | Abstract The olfactory responses of Aphidius gifuensis to odors from two host plants (Nicotiana tabacum and Brassica napus ssp.) and their complexes with different infestation levels of two host aphids (Myzus persicae and Lipaphis erysimi) were respectively examined in an olfactometer. The results showed that female A. gifuensis did not respond to odors of undamaged or mechanically damaged host plants, but significantly responded to odors of aphid/plant complexes. Moreover, A. gifuensis responded significantly to odors of both M. persicae and L. erysimi/plant complexes when host plants were infested by high levels of aphids, suggesting that quantity of aphid‐induced volatiles could be important for attracting A. gifuensis. When tested between aphid/plant complexes, A. gifuensis did not show its preference for either complex. The efficiency of A. gifuensis against aphids in open fields potentially could be improved by using its olfactory response to aphid/plant complexes. |
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| Keywords: | Aphidius gifuensis host location Lipaphis erysimi Myzus persicae olfaction plant odor |
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