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FEEDING BEHAVIOUR OF THE PALES WEEVIL: II. RESPONSE TO SOME NEUTRAL LIPID FRACTIONS OF LOBLOLLY PINE PHLOEM

Published online by Cambridge University Press:  31 May 2012

H. A. Thomas
H. A. Thomas
Affiliation:
Forestry Sciences Laboratory, Southeastern Forest Experiment Station, Forest Service, Research Triangle Park, North Carolina
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Abstract

The lipids of loblolly pine phloem, particularly the neutral lipids, were fractionated and bioassayed for feeding stimulant activity with the pales weevil, Hylobius pales (Herbst). Activity was evidently reduced by the fractionation procedures. Significant feeding occurred in response to the fraction whose principal constituent was β-sitosterol. Also, evidence indicated that substances occurring with the sterols may play a part in inducing feeding.

Type
Articles
Information
The Canadian Entomologist , Volume 104 , Issue 3 , March 1972 , pp. 427 - 432
Copyright
Copyright © Entomological Society of Canada 1972

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References

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