Isolation of Cryptoporus volvatus and Fomes pinicola from Dendroctonus pseudotsugae

Publisher Website
Google Scholar
Abstract
C. volvatus [Polyporus volvatus] and F. pinicola were isolated from Douglas-fir beetles (D. pseudotsugae) trapped in flight (24% and 37%, respectively). D. pseudotsugae is not an inhabitant of sporophores; consequently, mycelial fragments are considered to be the propagules disseminated. F. pinicola also was isolated from beetles removed from galleries in Pseudotsuga menziesii. Upon entering the tree after flight, the beetles probably dislodge mycelial fragments during their tunneling activities. Difco malt agar (4.5%) containing benomyl at 30 .mu.g/ml, streptomycin sulfate at 100 .mu.g/ml, and 85% lactic acid at 4000 .mu.g/ml provided a selective medium for isolation of C. volvatus and F. pinicola. D. pseudotsugae is a major vector of C. volvatus on P. menziesii in northern Idaho [USA]; it is an effective vector of F. pinicola.

This publication has 1 reference indexed in Scilit: