plant pests - Page 2 of 3

A B C D E F G H I J K L M N O P Q R S T V W X Y Z

Wa Wh Wi Wo

Willow

Willow, deciduous tree or shrub belonging to the willow family (Salicaceae). The willow family has + three hundred species plus numerous hybrids. Continue reading

Willow sawfly

Willow sawfly. Adult sawflies are 5 to 7.5 mm long, copper-colored insects with two pairs of wings.
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Wilt disease

Wilt disease is caused by soil fungi:
Fusarium wilt
Verticillium wilt

Winter moth

Winter moth, this inconspicuous moth also flies in winter. Then the female lays eggs on the leaf buds of deciduous trees, including fruit trees.
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Wireworm

Wireworms are the larvae of click beetles.
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Wisteria

Wisteria, belongs to the woody twining vines, and are native to the United States and (South) Asia.
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Witch’s broom

Witch’s broom is a deformity on a tree branch due to infestation by a fungus.
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Witches’ butter

Witches’ butter, this fungus lives on dead branches of deciduous trees, either still on the tree or on the ground.
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Woodlice

Woodlice belong to the crustaceans and, unlike the vast majority of crustaceans, do not live in water but on land.
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Woolly apple aphid

Woolly apple aphid is an approximately 2 mm large aphid that lives on plant sap that is sucked from young twigs and pruning wounds.
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