Gall-inducing insects

Have you ever noticed strange lumps and bumps on the leaves and stems of native plants? Galls are especially common on gum trees and wattles, and they are abnormal plant growths that form in response to invasion of plant tissue by a variety of organisms. Galls can be caused by certain species of wasps, flies, beetles, psyllids, coccids, thrips, moths and aphids, as well as by nematodes, mites, bacteria or fungi. This post concentrates on some common gall-inducing insects found in Australia. Continue reading Gall-inducing insects

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