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Giant willow aphid

Giant willow aphid

Tuberolachnus salignus

A species of Tuberolachnus

As its name suggests, the giant willow aphid lives inside of various willow and sallow trees. Giant willow aphid colonies attract jet black ants and Southern wood ants in search of honeydew to eat. These aphids are particularly active during the summer when they tend to cluster in large numbers.

General Info About Giant willow aphid
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Attributes of Giant willow aphid
Colors
Brown
Black
Gray
Habitat
willow
Adult Food Sources
Willow tree sap (salix spp.)
Larva Food Source
Willow tree sap (salix spp.)
Biting/stinging
Not reported
Allergy-causing
Not reported
Defensive attack
Not reported
Venomous
Not reported
Non-poisonous
Not reported
Borer
Not reported
Biting animal or pet
Not reported
Mouthparts Type
Piercing-sucking mouthparts
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Life Cycle of Giant willow aphid
Egg The eggs of giant willow aphid are often laid on the host plant and are small in size. Initial development occurs within the egg, and hatchlings resemble miniature versions of adults.
Nymph Newly emerged nymphs, also called instars, gradually grow, shedding their exoskeleton multiple times. They develop wing pads and gain pigmentation, but lack fully formed wings and reproductive structures.
Adult In the final molt, adults emerge with characteristic features such as a developed proboscis for feeding. While size and color may vary, they now have functional wings and reproductive organs, are mobile, and participate in reproduction.
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Predators of Giant willow aphid Larvae
Frogs and toads, birds, larval lacewings, lady beetles, hoverfly larvae, parasitic wasps
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Predators of Adult Giant willow aphid
Frogs and toads, birds, lacewings, lady beetles, hoverflies, dragonflies, parasitic wasps
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Interesting Facts About Giant willow aphid
Giant willow aphid can produce a sweet, sticky substance known as honeydew, which may attract other insect species and sometimes even leads to sooty mold growth on plants.
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Scientific Classification of Giant willow aphid
Tips for Finding Giant willow aphid
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Adult Habitat of Giant willow aphid
Forests and Woodlands
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Habitat Preferences of Giant willow aphid Through Different Life Stages
The giant willow aphid, is predominantly found on willow trees. The eggs overwinter on twigs and branches, nestled in crevices. Nymphs, upon hatching, feed on the sap from these branches. As giant willow aphid matures, it tends to cluster on the lower sides of leaves and around the stem, seeking out tender bark and foliage. For someone seeking to observe giant willow aphid, the search would commence by examining willow trees from the trunk, progressing along the branches, and inspecting both the twigs and the undersides of leaves, particularly during the active growing season.
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Harmful Effects of Giant willow aphid
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Agricultural Pests

Giant willow aphid, poses a mild to severe threat, with both nymphs and adults sucking sap from leaves. Light infestations weaken willows, while heavy populations lead to defoliation, reduced growth, and dieback. Honeydew excreted can attract sooty mold, negatively impacting plant and human health.

More Effects of Giant willow aphid

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