Searching efficiency and multiparasitism in Aphidius smithi and A. ervi (Hym., Aphidiidae), parasites of pea aphid, Acyrthosiphon pisum (Hom., Aphididae)

Tock, Hing Chua and D Gonzalez and T Bellows (1990) Searching efficiency and multiparasitism in Aphidius smithi and A. ervi (Hym., Aphidiidae), parasites of pea aphid, Acyrthosiphon pisum (Hom., Aphididae). Journal of Applied Entomology, 110. pp. 101-106. ISSN 0931-2048

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URL: https://onlinelibrary.wiley.com/doi/10.1111/j.1439...

Abstract

Aphidius smithi and A. ervi were introduced into the United States to control aphid pests of alfalfa. Laboratory experiments showed that A. smithi was more efficient in searching for hosts (i.e., more hosts parasitized) than A. ervi, when measured separately. However, when the two species searched together for the same hosts, a lesser percentage of A. smithi adults than A. ervi emerged from the mummies. Studies on multiple parasitism which involved hosts parasitized by one species exposed to the other species indicated that larvae of A. ervi were more competitive and survived better to adulthood than larvae of A. smithi. These results might help explain for the decline of A. smithi in California.

Item Type:	Article
Keyword:	Aphidius smithi , A. ervi , Parasites
Subjects:	Q Science > QL Zoology > QL1-991 Zoology > QL360-599.82 Invertebrates
Department:	FACULTY > Faculty of Medicine and Health Sciences
Depositing User:	DG MASNIAH AHMAD -
Date Deposited:	29 Aug 2022 08:51
Last Modified:	02 Sep 2022 23:00
URI:	https://eprints.ums.edu.my/id/eprint/33994

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