Aphis pomi, commonly known as the apple aphid (the literal meaning of its binomial name ), or the green apple aphid, is a true bug in the family Aphididae. It is found on young growth of apple trees and on other members of the rose family where it feeds by sucking sap. The wingless adult green apple or spirea aphid is bright green with black cornicles, legs and antennal tips. The winged adult has a black head and thorax with a yellow-green abdomen. Both winged and wingless forms are about 1/8 inch (3 mm) long. Alate (winged) and apterous (wingless) apple aphids (E. Beers)
Green Apple Aphid Aphis pomi Wild Columbia County
Green apple aphid ( Aphis pomi; GAA) and spirea aphid ( Aphis spiraecola; SPA) are both widely distributed species that look and behave similarly, and management for both species is the same. GAA and SPA infest young trees, water sprouts, and vigorous terminals on apple, pear, quince, and hawthorn in the spring and early summer. Description of the Pest Overwintering eggs are found on twigs of the previous season's growth and on fruit spurs. They are identical in appearance to rosy apple aphid eggs: shiny, black, and football shaped. Newly hatched apple aphids are dark green. Unlike the rosy apple aphid, green aphids may live on the apple tree all year, breeding continuously during the summer. In August and during the autumn months, these aphids are found almost exclusively on watersprouts or terminal branches of young trees that are still growing, and where male and female sexual forms are produced. Monitoring Host Plants Green apple aphids feed on abelia, crabapple, hawthorn, loquat, mountain ash, pear, pyracantha, spirea, and quince as well as commercial apples. Their feeding often causes terminal growth to curl. Like other aphids, green apple aphids excrete honeydew in which sooty molds sometimes grow.
GREEN APPLE APHID APHIS POMI MASSING ON APPLE BRANCH Stock Photo Alamy
Common names include greenfly and blackfly, [a] although individuals within a species can vary widely in color. The group includes the fluffy white woolly aphids. Aphis pomi, commonly known as the apple aphid (the literal meaning of its binomial name), or the green apple aphid, is a true bug in the family Aphididae. It is found on young growth of apple trees and on other members of the rose family where it feeds by sucking sap. Reproduction is mainly by parthenogenesis, in which unmated females give birth to live young. Green Apple Aphid Hosts apple Biology Overwinter as eggs in protected areas on limbs and start hatching at half-inch green. Green apple aphids remain on apples all season. Symptoms/Damage Curled leaves; copius honeydew supports black, sooty mold; stunted shoots. Monitoring Look for shiny black eggs in early spring. Green apple aphid nymphs and adults prefer to feed on the underside of leaves on growing shoot tips and stems. Decision-making: Estimate the average number of aphid-infested leaves on terminals. Generally, an average of 3 to 4 infested leaves is needed before fruit dam-age from honeydew occurs. In young
Green Apple Aphid Ontario CropIPM
Generally three species of aphids - the green apple aphid, rosy apple aphid, and apple-grain aphid - attack apple foliage in Kentucky. However, it is the rosy apple aphid which causes the most severe damage and is the most difficult of the three to control. The green apple aphid is the most common aphid pest of apples in Utah. The green-colored young, called nymphs, begin to hatch from overwintered eggs (Fig. 5) as early as silver tip, but populations generally do not begin to build until late May to early June when shoot leaves are rapidly expanding.
1 mm long, Shiny, Black, Oval shaped, Rarely seen in orchards. Nymphs: 2 mm in length, Yellow-green to light green, Oval shaped with black cornicles (tail pipes), Five instars. Adults: 2 mm in length, Oval shaped, Bright green with black cornicles and legs, Winged or wingless. Damage Reduced vigour and growth of shoots, Green apple aphid is a common but minor pest of apple, which also attacks pear. It is most important on young trees. As the name implies it is bright green in colour and readily distinguished from other aphid pests of apple.
Green Apple Aphid Ontario CropIPM
The cauda has 10-19 hairs (rarely less than 13). The body length of an adult aptera is 1.2-2.2 mm. The green apple aphid does not host alternate. It feeds in dense colonies on the young shoots and undersides of leaves of spp.) and related plants including pear ( ), hawthorn (, causing leaf curl. Colonies are often attended by ants. plant louse, greenfly, or ant cow See all related content → aphid, (family Aphididae), any of a group of sap-sucking, soft-bodied insects (order Homoptera) that are about the size of a pinhead, most species of which have a pair of tubelike projections (cornicles) on the abdomen.
