The influence of aphids and honeydew on the leaving rate of searching aphid parasitoids from wheat plants

A - Papers appearing in refereed journals

Budenberg, W. J., Powell, W. and Clark, S. J. 1992. The influence of aphids and honeydew on the leaving rate of searching aphid parasitoids from wheat plants. Entomologia Experimentalis et Applicata. 63 (3), pp. 259-264.

AuthorsBudenberg, W. J., Powell, W. and Clark, S. J.
Abstract

Dispersal cages were used to investigate the effects of aphids and treatment with artificial honeydew on the leaving rate of searching females of the parasitoid Aphidius rhopalosiphi from groups of wheat plants. Parasitoids which flew away from groups of plants placed in the centre of a cage were trapped on the sides and roof of the cage and thus were prevented from returning to the plants. The positions of trapped parasitoids suggested their direction of flight when dispersing from the plants. Parasitoids increased their residence times on groups of plants in the presence of aphids and of artificial honeydew, but the rate of parasitism of the host Sitobion avenae was not raised by the presence of artificial honeydew under the experimental conditions used. The direction of flight taken by the majority of parasitoids suggested that they were leaving the plants in order to locate further plants nearby to continue searching rather than to terminate searching and disperse away from the area. The need to consider plant patch size in studies of parasitoid searching behaviour is stressed.

KeywordsEntomology
Year of Publication1992
JournalEntomologia Experimentalis et Applicata
Journal citation63 (3), pp. 259-264
Open accessPublished as non-open access
Funder project or code905
112
101
206
208
ISSN00138703
PublisherWiley

Permalink - https://repository.rothamsted.ac.uk/item/86q03/the-influence-of-aphids-and-honeydew-on-the-leaving-rate-of-searching-aphid-parasitoids-from-wheat-plants

4 total views
0 total downloads
0 views this month
0 downloads this month