Michelle M. Cram USDA Forest Service Southern Research Station 320 Green Street Athens, GA 30602-2044 Phone: 706-559-4233 Fax: 706-559-4245 Email: Cram_Michelle/srs_athens@fs.fed.us

Tyler Dreaden and Jason Smith2 Introduction Annosum root rot (previously referred to as Annosus root rot) is widely regarded as the most economically damaging forest pathogen in temperate forests

Heterobasidion annosum (Fr.:Fr.) Bref. (= Fomes annosus (Fr.:Fr.) Cooke) (anamorph = Spiniger meineckellum (A. Olson) Stalpers) Basidiomycotina, Aphyllophorales, Polyporaceae Hosts:Heterobasid

caused by Heterobasidion annosum Importance. - Annosus root and butt rot is a commercially important disease of conifers. All southern pines are susceptible, but loblolly and slash pine are most seve

Latin name: Heterobasidion annosum (Fr.:Fr.) Bref. French name: Maladie du rond Division: Basidiomycota Class: Aphyllophorales Synonym(s): Fomes annosus (Fr.:Fr.) Cooke, Fomitopsis annosa (Fr.