North American host tree response to Amylostereum areolatum, the fungal symbiont of the woodwasp Sirex noctilioThis article is part of a larger document. View the larger document here.
Sirex noctilio Fabricus (Hymenoptera: Siricidae), a wood boring wasp native to Europe, western Asia, and northern Africa, is now considered established in New York, Pennsylvania, Michigan, New Hampshire, and southern Quebec. A single S. noctilio adult was found in Vermont in 2007. S. noctilio, together with its obligate symbiotic fungi, Amylostereum areolatum, will likely negatively affect populations of North American pines, because these species are the preferred hosts of the wasp.