Pecan Aphids, Part II: Feeding Biology

A adult black pecan aphid and her nymphs sit on the yellow, chlorotic spot that they created on this once green pecan leaf.

by Ted E. Cottrell Western Front

Pecan Aphids, Part II: Feeding Biology

In the first of this three-part series on the pecan-feeding aphids (March 2019), I covered how different aphid species distribute on pecan foliage. At the end of that article, we questioned why nymphs of the blackmargined pecan aphid and yellow pecan aphid favor the underside of the pecan leaf, but a proportion of black pecan...

by Ted E. Cottrell Native Timbre

Pecan Aphids, Part I: Distribution on Pecan Leaves

This article is the first of a three-part series examining the pecan-feeding aphids, especially the black pecan aphid. This first part concerns the general biology of the pecan aphids and their distribution on pecan leaves. In the second part, the emphasis will shift to the black pecan aphid with a discussion of feeding biology, and...