A. B. Idris
Not Available
E.J. Grafius
Not Available
ABSTRACT
Potential alternate host larvae and pupae were collected from wild and cultivated Brassica plants, apple (Malus domestica) trees, ornamental honeylocust tree (Gleditsia triacanthos), and corn (Zea mays) plants for laboratory observations. Laboratory reared Phthorimaea operculella and Sitotroga cerealella were used for parasitism by D. insulare. There was no parasitism observed to all Lepidoptera except for Plutella xylostella L., suggesting that they are unlikely to be the hosts of D. insulare. D. insulare were observed to parasitize Plutella porrectella, but neither host pupae nor parasitoid pupae were formed. Interestingly, Phthorimaea operculella and Sitotroga cerealella, both gelechiids, were parasitized by D. insulare (new record). In contrast to the parasitized P. xylostella, the larval developmental time of gelechiids to pupation was prolonged. It is suggested that the search for alternate host of D. insulare should be continued and focused on the microlepidopterous larvae.
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How to cite this article
A. B. Idris and E.J. Grafius, 2001. Alternate Host of Diadegma insulare (Hymenoptera: Ichneumonidae), a Parasitoid of Diamondback Moth (Lepidoptera: Plutellidae): A Preliminary Search. Pakistan Journal of Biological Sciences, 4: 1235-1239.
DOI: 10.3923/pjbs.2001.1235.1239
URL: https://scialert.net/abstract/?doi=pjbs.2001.1235.1239
DOI: 10.3923/pjbs.2001.1235.1239
URL: https://scialert.net/abstract/?doi=pjbs.2001.1235.1239
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