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Multiple ant species are attracted, gleaning honeydew beneath aphid feeding areas at beech trees and tending aphids at the cypress tree sites. [1] The aphids do not usually cause much damage to overall tree health, but dieback is occasionally seen on very heavily infested branches. If infestations are heavy, twigs may die, but damage to the ...
Brachycaudus helichrysi is a species of aphid first described by the German naturalist Johann Heinrich Kaltenbach in 1843. [3] Its common names include leaf curl plum aphid, [4] and leaf-curling plum aphid, and it is a serious pest of plum and damson trees. [5] [6]
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.
As the beneficials find a way to stay warm in the dormant plants and soil of your ornamental gardens throughout the winter, insect pests can do the same in your vegetable garden.
repels aphids, the cabbage looper, and the Colorado potato beetle [3] Fennel: repels aphids, slugs, and snails [3] Fever tea: repels mosquitoes [1] Four o'clocks: attract and poison the Japanese beetle [2] French marigold: repels whiteflies, kills nematodes [2] Garlic: repels root maggots, [2] cabbage looper, Mexican bean beetle, and peach tree ...
Viral infections, which can be extremely harmful to aphids, can also lead to the production of winged offspring. [64] For example, Densovirus infection has a negative impact on rosy apple aphid (Dysaphis plantaginea) reproduction, but contributes to the development of aphids with wings, which can transmit the virus more easily to new host ...
Most aphid species can reproduce both asexually and sexually, with several parthenogenetic generations between each period of sexual reproduction. This is known as cyclical parthenogenesis and, in temperate regions, sexual reproduction occurs in autumn and results in the production of overwintering eggs, which hatch the following spring and ...
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
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