Hostname: page-component-848d4c4894-wzw2p Total loading time: 0 Render date: 2024-04-30T10:36:38.306Z Has data issue: false hasContentIssue false
  • English
  • Français

PERFORMANCE OF A WILLOW-FEEDING BEETLE, CHRYSOMELA KNABI BROWN, AS AFFECTED BY HOST SPECIES AND DIETARY MOISTURE

Published online by Cambridge University Press:  31 May 2012

David R. Horton
David R. Horton
Affiliation:
Mountain Lake Biological Station, University of Virginia, Charlottesville, Virginia, USA22901
Get access Rights & Permissions [Opens in a new window]

Abstract

Larval performance and adult size of Chrysomela knabi Brown varied with host quality and species. Beetles reared on a low moisture diet of Salix humilis Marsh. or a novel host, S. nigra Marsh., showed reduced growth rates, survival, and adult size compared with performance on the local host, S. humilis, at high moisture. For all performance variables, beetles were least successful on the novel host. Development (hatch to pupation) was 1.2 and 3.9 days faster on the high moisture diet than on the low moisture diet or novel host, respectively. Survival (hatch to pupation) was 8 and 20% higher on the local host (high moisture) than on the low moisture diet and novel host, respectively. Weight and elytral length of newly eclosed adults showed these same trends.

Résumé

On a démontré que la performance larvaire et la taille adulte de Chrysomela knabi varient selon l’espèce et la qualité de la plante hôte. Des individus nourris d’une diète constituée de l’hôte local Salix humilis Marsh, partiellement desséché, ou d’un nouvel hôte, S. nigra Marsh., ont montré un taux de croissance, une incidence de survie et une taille plus faibles que ceux qui étaient nourris du S. humilis non desséché. Pour l’ensemble des mesures effectuées, la performance la plus faible a été observée sur le nouvel hôte. Le développement, de l’éclosion jusqu’à la pupaison, s’est avéré 1,2 ou 3,9 jours plus rapide sur l’hôte local non desséché, que sur ce même hôte desséché ou le nouvel hôte, respectivement. Durant la même période, la survie a été de 8 ou 20% meilleure sur l’hôte local non desséché, que sur ce même hôte desséché ou le nouvel hôte, respectivement. Le poids et la longueur élytrale d’adultes nouvellement éclos montraient ces mêmes tendances.

Type
Articles
Information
The Canadian Entomologist , Volume 121 , Issue 9 , September 1989 , pp. 777 - 780
Copyright
Copyright © Entomological Society of Canada 1989

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

Beckwith, R.C. 1970. Influence of host on larval survival and adult fecundity of Choristoneura conflictana (Lepidoptera: Tortricidae). Can. Ent. 102: 1474–1480.CrossRefGoogle Scholar
Berenbaum, M. 1986. Postingestive effects of phytochemicals on insects: on Paracelsus and plant products. pp. 121–153in Miller, J.R., and Miller, T.A. (Eds.), Insect–Plant Interactions. Springer-Verlag, New York.CrossRefGoogle Scholar
Blau, P.A., Feeny, P., Contardo, L., and Robson, D.S.. 1978. Allylglucosinolate and herbivorous caterpillars: a contrast in toxicity and tolerance. Science 200: 1296–1298.CrossRefGoogle ScholarPubMed
Brown, W.J. 1956. The new world species of Chrysomela L. (Coleoptera: Chrysomelidae). Can. Ent. 88: Supplement III. 54 pp.Google Scholar
Morris, R.F. 1967. Influence of parental food quality on the survival of Hyphantria cunea. Can. Ent. 99: 24–33.CrossRefGoogle Scholar
Palo, R.T. 1984. Distribution of birch (Betula spp.), willow (Salix spp.), and poplar (Populus spp.) secondary metabolites and their potential role as chemical defense against herbivores. J. Chem. Ecol. 10: 499–520.CrossRefGoogle ScholarPubMed
Preszler, R.W., and Price, P.W.. 1988. Host quality and sawfly populations: a new approach to life table analysis. Ecology 69: 2012–2020.CrossRefGoogle Scholar
Raupp, M.J., and Denno, R.F.. 1984. The suitability of damaged willow leaves as food for the leaf beetle, Plagiodera versicolora. Ecol. Ent. 9: 443–448.CrossRefGoogle Scholar
Reese, J.C. 1978. Chronic effects of plant allelochemics on insect nutritional physiology. Ent. exp. appl. 24: 625–631.CrossRefGoogle Scholar
Rowell-Rahier, M. 1984. The presence or absence of phenolglycosides in Salix (Salicaceae) leaves and the level of dietary specialisation of some of their herbivorous insects. Oecologia (Berlin) 62: 26–30.CrossRefGoogle ScholarPubMed
Scriber, J.M. 1979. Effects of leaf-water supplementation upon post-ingestive nutritional indices of forb-, shrub-, vine-, and tree-feeding Lepidoptera. Ent. exp. appl. 25: 240–252.CrossRefGoogle Scholar
Southwood, T.R.E. 1961. The number of species of insect associated with various trees. J. Anim. Ecol. 30: 1–8.CrossRefGoogle Scholar
Waldbauer, G.P. 1962. The growth and reproduction of maxillectomized tobacco hornworms feeding on normally rejected non-solanaceous plants. Ent. exp. appl. 5: 147–158.CrossRefGoogle Scholar