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The Seasonal Development of a Species of Conophthorus (Hopkins) (Coleoptera: Scolytidae) in the Shoots of Jack Pine, Pinus banksiana (Lamb.), in Ontario1

Published online by Cambridge University Press:  31 May 2012

H. Herdy  and
J. B. Thomas
H. Herdy
Affiliation:
Forest Insect Laboratory, Sault Ste. Marie, Ontario
J. B. Thomas
Affiliation:
Forest Insect Laboratory, Sault Ste. Marie, Ontario
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Extract

Two publications dealing with the seasonal development of species of Conophthorus have appeared in recent years. Lyons (1956) reported on a study of C. resinosae Hopk. in red pine, Pinus resinosa Ait., in Ontario, whereas Ruckes (1958) gave the details of his observations on C. radiatae Hopk. in Monterey pine, Pinus radiata D. Don, in California. Both species attack the developing cones of the host tree, although Lyons found that C. resinosae would develop in the shoots of red pine, and occasionally attacked the second-year cones of jack pine as well. The jack pine-inhabiting species, however, has been found almost exclusively in the shoots; only seven second-year cones that had been mined were collectcd during two years of investigation.

Type
Articles
Information
The Canadian Entomologist , Volume 93 , Issue 10 , October 1961 , pp. 936 - 940
Copyright
Copyright © Entomological Society of Canada 1961

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References

Lyons, L. A. 1956. Insects affecting seed production in red pine. Part I. Conophthorus resinosae Hopk. (Coleoptera: Scolytidae). Can. Ent. 88: 599–608.CrossRefGoogle Scholar
Ruckes, H. 1958. Some observations on the Monterey pine cone beetle, Conophthorus radiatae Hopk. (Coleoptera: Scolytidae). Ann. Ent. Soc. Amer. 51: 214–215.CrossRefGoogle Scholar
Thomas, J. B. and Lindquist, O. H.. 1956. Notes on bark beetles and associated insects feeding in pine shoots. Car. Dept. Agr. For. Biol. Div. Bi-Mon. Frog. Rept. 12(4).Google Scholar