Plant Parasites of Europe

leafminers, galls and fungi

ambrosia beetle

The larvae of ambrosia beetles feed on specialised fungi that develop in galleries made by the maternal insect in the sapwood (rarely the hardwood) of a branch. Generally the host plant is already dead, but some species live in healthy or weakened trees. Ambrosia beetles do not comprise a taxonomic entity, but rather an ecological guild. Often the fungi cause a bluish-black discolouration of the wood.

references

Gebhardt, Begerow & Oberwinkler (2004a).