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27 December 2021 Effects of Plant-Mediated Differences in Aphid Size on Suitability of Its Parasitoid, Aphelinus varipes (Hymenoptera: Aphelinidae)
Muhammad Yasir Ali, Zhaozhi Lu, Abid Ali, Muhammad Bilal Amir, Muhammad Afaq Ahmed, Sohaib Shahid, Tong-xian Liu, Mingzhen Pan
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Abstract

Host plants indirectly affect parasitoid life-history traits via parasitoid hosts. Here, we evaluated the life-history traits of the parasitoid Aphelinus varipes emerging from the green peach aphid, Myzus persicae (Hemiptera: Aphididae), feeding on five commercially important vegetables. The results showed that A. varipes fed upon and parasitized maximum number of aphids grown on chili pepper, and least on cabbage. The emergence rate was the highest on chili pepper (100%) and lowest on crown daisy (71.1 ± 2.17%). Aphelinus varipes developed fastest on hosts reared on chili pepper (12.9 ± 0.02 d) and slowest on aphids reared on cabbage (14.1 ± 0.02 d). The body weight and body size of emerging wasp parasitoids and aphids were greatest on chili pepper and lowest on cabbage. Aphid body size positively affect parasitism, development time, and body size of the parasitoid. In conclusion, our results showed that the parasitoid A. varipes had variable life-history parameters, depending on the host plant species and host body size. The effects of host plant species on performance of M. persicae and its parasitoid A. varipes are discussed, along with the potential of using A. varipes to control M. persicae on different plants.

© The Author(s) 2021. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Muhammad Yasir Ali, Zhaozhi Lu, Abid Ali, Muhammad Bilal Amir, Muhammad Afaq Ahmed, Sohaib Shahid, Tong-xian Liu, and Mingzhen Pan "Effects of Plant-Mediated Differences in Aphid Size on Suitability of Its Parasitoid, Aphelinus varipes (Hymenoptera: Aphelinidae)," Journal of Economic Entomology 115(1), 74-80, (27 December 2021). https://doi.org/10.1093/jee/toab245
Received: 21 January 2021; Accepted: 23 November 2021; Published: 27 December 2021
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KEYWORDS
biological control
development time
host feeding
parasitism
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