Entomophthora canadensis n.sp., a fungus pathogenic on the woolly pine needle aphid, Schizolachnus piniradiatae

Publisher Website
Google Scholar
Abstract
E. canadensis sp. nov. is described and illustrated, and its morphological development traced. The new species differs from all other species of the genus, by its distinctively shaped conidia, long-elliptical to nearly cylindrical, average 25.0 .mu.m .times. 10.0 .mu.m, and its ornamented azygospores, verruculose to lightly rugulose, average 34.0 .mu.m diameter. It is compared with E. aphidis, within which it has been included and E. sphaerosperma, the species it most closely resembles. E. canadensis is currently known only from populations of the aphid S. piniradiatae, in red pine (Pinus resinosa) plantations in Ontario, Canada.