Search results
Results from the WOW.Com Content Network
The woolly apple aphid, Eriosoma lanigerum is a widespread pest of fruit trees, feeding principally on apple, but also, pears, hawthorn, ash, alders, elms and oaks. Gall making species include Melaphis rhois and Pemphigus spp. Further minor damage can be caused by the honeydew that woolly aphids
The adults of Eriosoma lanigerum are small to medium-sized aphids, [4] up to 2mm long, and have an elliptical shape, are reddish brown to purple in colour but the colour is normally hidden by the white cotton-like secretion from the specialised glands in the aphid's abdomen which gives it the common name of woolly apple aphid.
Woolly Aphids on Apple tree branch. Many aphid species are monophagous (that is, they feed on only one plant species). Others, like the green peach aphid, feed on hundreds of plant species across many families. About 10% of species feed on different plants at different times of the year. [32]
Melaphis rhois is an aphid species first identified by Asa Fitch in 1866. [1] Known as the staghorn sumac aphid, it is the only species in the genus Melaphis. [2] It is a type of woolly aphid and one of the few aphids that induce the formation of galls. [3]: 758
For premium support please call: 800-290-4726 more ways to reach us
The woolly elm aphid (Eriosoma americanum) is an aphid native to North America, found where Saskatoon (Amelanchier alnifolia) and American (Ulmus americana) elm trees are established. The aphid feeds on the Saskatoon elm in late spring through fall, and the American elm during both early spring and late fall.
Colophina clematis is a species of aphid in the woolly aphid subfamily, Eriosomatinae, native to Japan.This woolly aphid has the distinction of being the first species of aphid to have been identified as having a "soldier" caste. [1]
This species is monoecious and holocyclic. When a cyclical parthenogenesis occurs, aphids reproduce sexually in the autumn and produce an overwintering egg, deposited on buds and bark crevices of the host plant. In spring the newly hatched nymphs develop in about two to three weeks and at least three molts to wingless, 2–3 mm large Fundatrix.