Editors: W.T. Wilsey, C.R. Weeden, and A.M. Shelton
Peach Aphid (Myzus persicae) - Life
for larger image
Green peach aphids are approximately 1/4 inch (2-3 mm) long and vary
from colorless to light blue-green or pinkish-red. The body of the
aphid is widest at the midsection of its abdomen, giving it an almond-shaped
appearance. Adult green peach aphids may be winged or wingless. In
the spring, after developing on primary host species of Prunis,
female adult aphids reproduce by giving birth to living young.
In the northeast, green peach aphid overwinters in the egg stage.
The eggs are laid only in the fall on the primary host species of
Prunis, e.g. peach, plum, cherry, chokecherry, and possibly
others. The eggs are very minute (less than 1 mm), black, and shiny.
The immature green peach aphid is called a nymph and passes through
four developmental stages, followed by a pre-reproductive stage before
becoming a reproductive adult. The nymphs are similar in color and
body shape to the adults, but do not have wings. Since adults in early
spring do not have wings, a mature nymph may be confused with a wingless
adult. Later in the season, immature forms can be found with winged
Damage to beans inflicted by
green peach aphid
Damage to cabbage and crucifers
inflicted by green peach aphid
Some information on this page
taken from Insects of Potatoes: Factsheet number 102GFS760.10 authored
by W. M. Tingey, and J. T. Andaloro.
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Maintained by Jason D. Plate. Last updated Mar. 8th, 2007.