Skip to Main Content
First report of Amylostereum areolatum in pines in the United StatesAuthor(s): A. D. Wilson; N.M. Schiff; D. A. Haugen; E. R. Hoebeke
Source: Plant Disease, Vol. 93(1):108.
Publication Series: Scientific Journal (JRNL)
PDF: View PDF (654.68 KB)
DescriptionThe wood decay fungus Amylostereum areolatum (Fr.) Boidin, native to Eurasia and North Africa (4), is the mycosymbiont of several siricid woodwasps including Sirex noctilio Fabricius, a major pest of pines in New Zealand, Australia, South America, and South Africa where it has been introduced. Adult females of S. noctilio are effective vectors of arthrospores (hyphal fragments) of the fungus, stored internally within mycangia in the abdomen, which are injected with the eggs and a phytotoxic mucus into the outer sapwood of coniferous tree hosts during oviposition. The toxin is translocated upward into the foliage causing needle wilting, necrOSiS, and crown dieback. The fungus decays the wood (white rot) and provides food for hatching larvae that form borer galleries. Extensive damage to the host via wood decay, galleries, and toxin effects cause mortality in heavily infested trees. S. noctilio adults have been intercepted from several locations in North America prior to 2003, but there has been no evidence of an established population in any native forests until recently.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationWilson, A. D.; N. M. Schiff; D. A. Haugen, and E. R. Hoebeke. 2009. First report of Amylostereum areolatum in pines in the United States. Plant Disease 93(1):108.
- North American host tree response to Amylostereum areolatum, the fungal symbiont of the woodwasp Sirex noctilio
- History and management of sirex wood wasp in Australia
- An update on the status and management of the Sirex woodwasp in South Africa
XML: View XML