rosy apple aphid
Quick Summary
The rosy apple aphid (Dysaphis plantaginea) is a pinkish or purplish aphid that feeds on apple foliage and fruit. Aphids, in general, are small, soft-bodied insects that suck sap from plants. They can cause significant damage by stunting growth, creating galls, and transmitting plant diseases.12
The life cycle of aphids is complex, often involving wingless females reproducing without fertilization (parthenogenesis) and giving birth to live young. When populations become crowded, winged adults develop and fly to new plants. In cooler climates, aphids lay eggs that survive the winter, while in warmer regions, reproduction may be continuous.2
Natural enemies like ladybird beetles and lacewings help control aphid populations. However, when infestations are severe, insecticidal soaps, horticultural oils, and other insecticides may be necessary. The rosy apple aphid specifically can deform fruit, creating what are known as "aphis apples". Its life cycle includes alternate hosts like plantain, and it returns to apple trees to lay eggs in the fall.2
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