Hostname: page-component-77c89778f8-vpsfw Total loading time: 0 Render date: 2024-07-18T10:04:17.107Z Has data issue: false hasContentIssue false
  • English
  • Français

HOST DERIVED CHEMICALS: THE BASIS FOR PREFERENTIAL FEEDING BEHAVIOR OF THE LARCH SAWFLY, PRISTIPHORA ERICHSONII (HYMENOPTERA: TENTHREDINIDAE), ON TAMARACK, LARIX LARICINA1

Published online by Cambridge University Press:  31 May 2012

M. R. Wagner ,
T. Ikeda ,
D. M. Benjamin  and
F. Matsumura
M. R. Wagner
Affiliation:
Department of Entomology, University of Wisconsin, Madison, Wisconsin 53706
T. Ikeda
Affiliation:
Department of Entomology, University of Wisconsin, Madison, Wisconsin 53706
D. M. Benjamin
Affiliation:
Department of Entomology, University of Wisconsin, Madison, Wisconsin 53706
F. Matsumura
Affiliation:
Department of Entomology, University of Wisconsin, Madison, Wisconsin 53706
Get access Rights & Permissions [Opens in a new window]

Abstract

Larch sawfly larvae, Pristiphora erichsonii (Hartig), naturally reject single needles of newly elongated shoots and consume only tufted foliage from 1 year or older short shoots of tamarack, Larix laricina (Du Roi) K. Koch. Forest entomologists have recognized this unusual feeding behavior for over a century, but not until now has the mechanism been understood. In the bioassasy of unpurified single needle methanol extracts (concn. 1 g needle/ml), 88.5% of the larvae were feeding on the control end of the bioassay twig (solvent only) after 4 h. This was significantly different from a similar bioassay of tufted foliage extract (t-value significant at 0.02 level) and a non-treated control bioassay (distilled water on both ends of bioassay twig) (t-value significant at 0.01 level). In the bioassay of a purified extract of single tamarack needles (TLC fraction 7), 81% of larvae were feeding on the untreated end (t-value significant 0.02). Thin-layer chromatography fraction 7, of eight fractions delineated, alone induced significant feeding inhibition.

Type
Articles
Information
The Canadian Entomologist , Volume 111 , Issue 2 , February 1979 , pp. 165 - 169
Copyright
Copyright © Entomological Society of Canada 1979

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

All, J. N. and Benjamin, D. M.. 1975 a. A feeding preference bioassay for Neodiprion sawflies on jack pine, Pinus banksiana. Ann. ent. Soc. Am. 68: 553–556.CrossRefGoogle Scholar
All, J. N. and Benjamin, D. M.. 1975 b. Deterrent(s) in jack pine, Pinus banksiana, influencing larval feeding behavior of Neodiprion swainei and N. rugifrons. Ann. ent. Soc. Am. 68: 495–499.CrossRefGoogle Scholar
Drooz, A. T. 1960. The larch sawfly, its biology and control. Tech. Bull. U.S. Dep. Agric. Forest Serv. 1212.Google Scholar
Harman, D. M. and Brown, M. L.. 1970. Feeding habits of the larch sawfly, Pristiphora erichsonii, (Hymenoptera: Tenthredinidae) on Japanese larch in Maryland. Chesapeake Sci. 11: 183–190.CrossRefGoogle Scholar
Heron, R. J. 1951. Notes on the feeding of larvae of the larch sawfly, Pristiphora erichsonii (Htg.) (Hymenoptera: Tenthredinidae). 82nd A. Rep. ent. Soc. Ont.: 67–70.Google Scholar
Heron, R. J. and Drouin, J. A.. 1969. Methods of collecting, rearing and handling the larch sawfly for experimental studies. For. Res. Lab., Winnipeg, Manitoba, Inf. Rep. Forest Res. Lab. (Winnipeg, Man.) MS-X-15.Google Scholar
Ikeda, T., Matsumura, F., and Benjamin, D. M., 1977. Mechanism of feeding discrimination between matured and juvenile foliage by two species of pine sawflies. J. Chem. Ecol. 3: 677–694.CrossRefGoogle Scholar
Ives, W. G. H. 1963. Effects of defoliation on survival of larvae of the larch sawfly, Pristiphora erichsonii (Htg.). Can. Ent. 95: 887–892.CrossRefGoogle Scholar
Ives, W. G. H. 1976. The dynamics of larch sawfly (Hymenoptera: Tenthredinidae) populations in southeastern Manitoba. Can. Ent. 108: 701–730.CrossRefGoogle Scholar
Packard, A. S. 1890. Insects injurious to forest and shade trees. Fifth Report of the U.S. Ent. Comm., USDA, Bull. 7: 881.Google Scholar