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An Account of a Black Aphid, Doralis Fabae (Scop.) Subsp. Armata (Hausmann)*, Found on Digitalis Purpurea, L.

Published online by Cambridge University Press:  10 July 2009

F. H. Jacob
F. H. Jacob
Affiliation:
(School of Agriculture, University College of North Wales, Bangor.)
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Extract

At the end of June, 1942, large colonies of a black aphid, indistinguishable from Doralis fabae (Scop.), were found on foxgloves growing on a hillside in Westmorland. This aphid was found commonly in the mountainous districts of Westmorland and Cumberland in 1943, Caernarvonshire in 1945, and Anglesey in 1946. Observations to be described below have indicated that in nature, this aphid spends the whole of its life on foxgloves, and experiments have shown that it does not readily feed upon the economically, important host plants of D. fabae.

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Type
Original Articles
Information
Bulletin of Entomological Research , Volume 37 , Issue 3 , January 1947 , pp. 431 - 437
Copyright
Copyright © Cambridge University Press 1947

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