Zobrazeno 1 - 4
of 4
pro vyhledávání: '"Neodiprion tsugae"'
Autor:
R. L. Furniss, Philip B. Dowden
Publikováno v:
Journal of Economic Entomology. 34:46-52
Autor:
Geo. R. Hopping, H. B. Leech
Publikováno v:
The Canadian Entomologist. 68:71-79
The western hemlock sawfly, Neodiprion tsugae Middleron, first came to our notice from the Queen Charlotte Islands, British Columbia. In 1931, reports of the dying of hemlocks over large areas came from rangers and timber operators of this region. A
Autor:
Torolf R. Torgersen
Publikováno v:
Annals of the Entomological Society of America. 61:1155-1158
The primary parasites of Neodiprian tsugae Middleton in coastal Alaska are hymenopterous species representing 8 genera. The commonest primary parasites are Opidnus tsugae tsugae (Cushman ), Delomerista japonica diprianis Cushman, and Itoplectis quadr
Autor:
Harry C. Coppel, Michael G. Klein
Publikováno v:
Annals of the Entomological Society of America. 66:1178-1180
Entomophthora tenthredinis Fresenius was first recorded from a sawfly in 1858 (Fresenius 1858), and subsequent reports have been rare. It was reported infrequently on several members of the Tenthredinidae from Europe (Gustafsson 1965, Leatherdale 197