Black peach aphid
Brachycaudus persicae (Passerini)
Hemiptera: Sternorrhyncha: Aphididae
These smooth-looking, pear-shaped insects have long antennae and a pair of cornicles extending from the posterior end of the body. Adults are shiny and black (A). Nymphs are reddish-brown.
Widespread in most stone fruit-growing states and provinces in eastern North America.
Black peach aphid feeds on the roots of young peach and plum trees (B), causing stunted growth and predisposing them to other damage. Foliar colonies form in the spring, and can cause leaf curling, yellowing and premature drop. Some fruit distortion may occur, and honeydew from large colonies causes leaf spotting and sooty mold on the fruit.
Black peach aphid is rarely a serious pest in commercial orchards. Motile forms can be treated with an insecticide as they appear in the spring. Conservation of natural enemies will contribute to management efforts.
The MSU IPM Program maintains this site as an access point to pest management information at MSU. The IPM Program is administered within the Department of Entomology, fueled by research from the AgBioResearch, delivered to citizens through MSU Extension, and proud to be a part of Project GREEEN.