wingless females host:ssfruit.cas.psu.edu

Listing 1 - 4 from 4 for wingless females

FPHG -
... or on buds in the fall by the wingless female. The eggs hatch in spring about silver tip. They hatch into stem mothers--wingless females that are pear shaped and bright green. These give birth to a generation of green viviparous aphids, about three-quarters of which develop into winged females. The rest remain wingless. The ...
ssfruit.cas.psu.edu

FPHG -
... from the eggs in spring are all viviparous (giving live birth) wingless females, which are called "stem mothers" when mature. The bodies of these ... day. The nymphs of the second generation, all of which are females, reach maturity in 2 to 3 weeks; the great majority begins ... aphids. In the fall, the winged females fly back to the apple trees. The males mate with the females, which then deposit eggs on ...
ssfruit.cas.psu.edu

FPHG -
... . Peach trees are its primary host and overwintering source. Green peach aphids overwinter as wingless females and/or eggs underneath peach buds. Eggs hatch and young nymphs develop into stem ... , rain, cold weather, and predators are important in regulating populations. After several generations of wingless adults, winged aphids appear during June, and all aphids leave peach trees during June ...
ssfruit.cas.psu.edu

FPHG -
... trees or other sheltered places, become active any time the temperature is above 40°F. Females begin laying tiny, pear-shaped, yellowish eggs in cracks in the bark and around the ... tip to green cluster bud. Eggs hatch in 2 to 4 weeks, and the yellowish, wingless nymphs move to succulent stems and developing leaves to feed. Nymphs are flattened, covered with ...
ssfruit.cas.psu.edu