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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]
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 ...
Rhopalosiphum oxyacanthae, commonly known as the apple-grass aphid (and sometimes referred to as the apple-grain aphid [2]) is a species of aphid in the phylum Arthropoda. This species is considered a pest in agriculture and has a wide distribution around the world. These aphids can be commonly found on the fruits of apples and other such ...
Aphids do best when amino acids are actively translocated in the phloem. In spring, the leaves grow and import amino acids via the phloem; in summer leaves are mature and export mainly sugars. In autumn, the leaves senesce and export amino acids and other nutrients. Thus on trees the leaves are most suitable for aphids in spring and autumn.
Aphids adopting a characteristic stance when feeding on a broad bean stalk. The black bean aphid can feed on a wide variety of host plants. Its primary hosts on which the eggs overwinter are shrubs such as the spindle tree (Euonymus europaeus), Viburnum species, or the mock-orange (Philadelphus species).
Tuberolachnus salignus, or the giant willow aphid, is a species of aphid, in the genus Tuberolachnus. They are reputed to be the largest aphids, with a body length of up to 5.8mm. [1] [2] First described by Johann Friedrich Gmelin in 1790, it feeds on many species of willow (Salix species), and has one known host-specific parasite, Pauesia ...
Euceraphis betulae, the birch aphid or silver birch aphid, is a species of aphid in the order Hemiptera.It is a tiny green insect with a soft body and wings. It is found living on the European silver birch tree (Betula pendula) where it feeds and multiplies on the buds and leaves by sucking sap.
Cerataphis lataniae, commonly known as the palm aphid, is an aphid known to infest palm species as well as a variety of leafy plants. It is one the most common pests that causes damage to agriculture and human health.