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Aphids
- Latin Name: Macrosiphum rosae
- Latin Family Name: Aphididae
- Common Name: Rose Aphid
- Other Names: N/A
Origin:
Originally known from Europe, but it now can be found throughout the U.S. where mild temperatures allow it.
Biology:
These aphids feed primarily on roses and pyracantha, and when feeding in heavy numbers can cause distortion to new buds and leaves. Reproduction throughout the growing season is by parthenogenesis, with females producing living nymphs, and with several generations occurring on the same plant. In the fall males will be produced to mate with females, which then deposit eggs on the stems of the roses, with these eggs over-wintering. The eggs hatch quickly once new growth appears in the spring.
Identification:
This is a medium-sized aphid with both green and pink forms occurring together
- Latin Name: Illinoia liriodendri
- Latin Family Name: Aphididae
- Common Name: Tuliptree Aphid
- Other Names: N/A
Origin:
The tulip tree is native to the eastern U.S., so the aphid presumably also is a native species, now found throughout North America wherever these popular shade trees grow.
Biology:
While the tree can withstand heavy populations of the aphids, feeding on the lower surface of the wide leaves, the primary complaint is the heavy production of honeydew. With large aphid populations the effect is to have the honeydew “raining” down from the tree, coating all surfaces below with a solid, sticky layer of the material. Since tulip trees are favorites along sidewalks and in parks this creates problems for cars and people in the area.
Identification:
These
- Latin Name: Eriosoma lanigerum
- Latin Family Name: Aphididae
- Common Name: Woolly Apple Aphid
- Other Names: N/A
Origin:
Native to eastern North America, where it originally infested apple trees and elm, as alternate hosts. Now found throughout North America.
Biology:
A very serious pest on apple and other plants in the same family, including pyracantha, cotoneaster, pear, and others such as hawthorn or elm. The aphids may infest stems or roots, and when feeding on the roots may feed undetected as their population grows. On tender bark of stems the feeding causes large swollen areas that may eventually girdle that stem and cause death of the plant part. When large aggregations feed on the roots the foliage of the plant may turn yellow, and as colonies grow they may begin to feed on foliage as well as the stems. Eggs are rarely produced,
- Latin Name: Eriosoma americanum
- Latin Family Name: Aphididae
- Common Name: Woolly Elm Aphid
- Other Names: N/A
Origin:
A native species in eastern North America, and found wherever trees such as Saskatoon (= Juneberry, Serviceberry, wild plum) and American Elm are grown.
Biology:
These aphids are very similar in appearance and habits to the Woolly Apple Aphid, attaching themselves to the thin bark of twigs or roots to suck plant fluids. The effect on the plant is to cause swollen and knotted areas that may lead to the death of that twig or root beyond the feeding site. In colder regions they overwinter as eggs or nymphs and in warmer areas may overwinter on the bark as mature females. Eggs are deposited in the fall and hatch in early spring, and after 2 generations on a plant winged forms are produced that may then migrate to other