EMODIN IN BUCKTHORN: A FEEDING DETERRENT TO PHYTOPHAGOUS INSECTS
- 1 February 1979
- journal article
- research article
- Published by Cambridge University Press (CUP) in The Canadian Entomologist
- Vol. 111 (2), 207-212
- https://doi.org/10.4039/ent111207-2
Abstract
Emodin, a mixture of anthraquinones, occurs in the Rhamnaceae and functions as a deterrent to foliage-feeding insects. There was little attack on foliage of Rhamnus alnifolia in wild stands compared with associated species of woody plants. Anthraquinones extracted from foliage of R. alnifolia were similar to purchased emodin in thin-layer chromatographic and infra-red spectroscopic analyses. Quantities of emodin in foliage samples were high in May, declining to low levels in August. Leaf powders, leaf extracts, and purchased emodin all showed feeding deterrent activity when mixed with artificial diets and assayed with gypsy moth larvae. Purchased emodin showed similar activity when sprayed on foliage of small cherry trees and assayed with eastern tent caterpillar larvae.This publication has 9 references indexed in Scilit:
- Chemotaxonomie der PflanzenTaxon, 1995
- Chemotaxonomie der PflanzenPublished by Springer Nature ,1973
- Chemical EcologyBird-Banding, 1972
- Allelochemics: Chemical Interactions between SpeciesScience, 1971
- Investigations on the possibilities of a biological control of Rhamnus cathartica L. in Canada: Host ranges, feeding sites, and phenology of insects associated with European RhamnaceaeZeitschrift für Angewandte Entomologie, 1970
- Chemical Interactions between Plants and InsectsPublished by Elsevier ,1970
- An Artificial Diet for the Gypsy Moth, Porthetria dispar (Lepidoptera: Lymantriidae)Annals of the Entomological Society of America, 1966
- Poisonous Plants of the United States and CanadaSoil Science, 1964
- FOOD PLANT RELATIONSHIPS OF THE DIAMOND‐BACK MOTH (PLUTELLA MACULIPENNIS (CURT.)): I. Gustation and Olfaction in Relation to Botanical Specificity of the LarvaEntomologia Experimentalis et Applicata, 1960