Story: Apples and pears

Wasp parasite of woolly apple aphid

Wasp parasite of woolly apple aphid

A tiny North American wasp – Aphelinus mali – is a natural enemy of woolly apple aphids, and was introduced to New Zealand in 1921 to help control the pest. Female wasps lay a single egg into aphid nymphs. The nymph dies and the wasp develops into an adult inside the dead body over 20–50 days.

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How to cite this page:

John Palmer, 'Apples and pears - Rootstocks and tree management', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/en/photograph/17256/wasp-parasite-of-woolly-apple-aphid (accessed 17 November 2019)

Story by John Palmer, published 24 Nov 2008