Distribution of Cocoon Parasites of the European Pine Sawfly, Neodiprion sertifer (Geoffroy), in Southern Ontario
- 1 January 1966
- journal article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 98 (1), 40-45
- https://doi.org/10.4039/ent9840-1
Abstract
Cocoons of the European pine sawfly were exposed in rodent-proof trays to determine what parasites attack this pest in southern Ontario. Exposures at 17 localities showed that two introduced parasites, Dahlbominus fuscipennis (Zetterstedt) and Pleolophus (= Aptesis) basizonus (Gravenhorst), are firmly established throughout the distribution of the host. The former parasite has spread more than 30 miles and the latter at least 70 miles in approximately 20 years. The number of trays found by each species varied considerably with locality. In general, the number of native parasitic species obtained tended to increase with age of infestation, with Mastrus aciculatus (Provancher) being the most prevalent.Keywords
This publication has 4 references indexed in Scilit:
- PARASITISM OF NEODIPRION LECONTEI (FITCH) (HYMENOPTERA: DIPRIONIDAE) IN TWO INFESTATIONS IN ONTARIO IN 1961Canadian Journal of Zoology, 1963
- The Life History of Aptesis basizona (Grav.) on Neodiprion sertifer (Geoff.) in Southern OntarioThe Canadian Entomologist, 1961
- Observations on the European Pine Sawfly, Neodiprion sertifer (Geoff.), and its Parasites in Southern OntarioThe Canadian Entomologist, 1959
- Parasitism of the European Pine Sawfly, Neodiprion sertifer (Geoff.) (Hymenoptera: Diprionidae), in Southwestern OntarioThe Canadian Entomologist, 1958