![Aphids](http://www.westag.co.nz/cdn/shop/articles/Lettuce_aphid_2_17ef21f9-8748-4ddf-b18f-71c2a27f2732_1000x667.jpg?v=1677579766)
Green aphids are the most common, but there are also black, white, and woolly aphids in NZ. They reproduce very fast in warmer months.
Aphids feed by sucking sap. In the process they weaken plants and spread disease. The honeydew they secrete attracts ants and wasps, and provides a growing medium for sooty mould.