Document Type
Peer-Review Article
Abstract
Diprion similis (Hartig) cocoons were collected at 24 sites in 14 counties in north and central Minnesota in 1975 to determine the current status of the parasite complex. The ichneumon Exenterus amictorius (Panzer) was by far the most abundant of the 16 parasites, with parasitization in excess of 44% in both sawfly generations. Parasitization by E. amictorius did not decrease substantially in the second generation, as was anticipated from previous studies. Monodontomerus dentipes (Dalman) (Torymidae) and Delomerista japonica diprionis Cushman (Ichneumonidae) were common only in the second generation. One specimen of Perilampus hyalinus Say (Perilampidae) was reared for the fust time from a D. similis cocoon. It was hyperparasitic through E. amictorius.
Recommended Citation
Thompson, L. C.; Kulman, H. M.; and Valovage, W. D.
1977.
"Survey For Parasites Of The Introduced Pine Sawfly, Dlprlon Slmllls (Hymenoptera: Diprionidae), In Minnesota,"
The Great Lakes Entomologist, vol 10
(3)
: 127-130
DOI: https://doi.org/10.22543/0090-0222.2594
Available at:
https://scholar.valpo.edu/tgle/vol10/iss3/7