Invasive gall‐forming wasps that threaten non‐native plantation‐grown Eucalyptus: diversity and invasion patterns

Gall‐forming hymenopterans of Eucalyptus species are highly successful invaders causing significant damage in non‐native plantation forests. To date, at least 16 of these species have been recorded as invasive eucalypt gall formers, of which less than half are known from Australia where they are thought to be native. About 80% of the species have become invasive only in the last two decades,