Dietary phenolics affects performance of the gypsy moth (Lepidoptera: Lymantriidae) and its parasitoid Cotesia melanoscela (Hymenoptera: Braconidae)

We examined the effects of dietary phenolic glycosides and tannic acid on performance of the gypsy moth. Lymantria dispar (L.), and its suitability as a host for the parasitoid Cotesia melanoscela (Ratzeburg). Gypsy moth growth was reduced on diets containing allelochemicals, and the magnitude of re...

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Bibliographic Details
Published in:Environmental entomology 1997-06, Vol.26 (3), p.668-671
Main Authors: Roth, S, Knorr, C, Lindroth, R.L
Format: Article
Language:English
Subjects:
ALELOQUIMICOS
ALLELOCHEMICALS
Biological and medical sciences
Biological control
BIOLOGICAL DEVELOPMENT
COMPOSE PHENOLIQUE
COMPUESTOS FENOLICOS
Control
CRECIMIENTO
CROISSANCE
DESARROLLO BIOLOGICO
DEVELOPPEMENT BIOLOGIQUE
DIET
DIETA
Fundamental and applied biological sciences. Psychology
GLICOSIDOS
GLYCOSIDE
GLYCOSIDES
GROWTH
HOST DIET
INSECTE NUISIBLE
INSECTOS DANINOS
LYMANTRIA DISPAR
MORTALIDAD
MORTALITE
MORTALITY
PARASITE
PARASITES
PARASITOIDE
PARASITOIDES
PARASITOIDS
PARASITOS
PEST INSECTS
PHENOLIC COMPOUNDS
PHENOLIC GLYCOSIDES
Phytopathology. Animal pests. Plant and forest protection
Protozoa. Invertebrates
REGIME ALIMENTAIRE
SUBSTANCE ALLELOCHIMIQUE
SYNTHETIC DIETS
TANINOS
TANNIN
TANNINS
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Summary:We examined the effects of dietary phenolic glycosides and tannic acid on performance of the gypsy moth. Lymantria dispar (L.), and its suitability as a host for the parasitoid Cotesia melanoscela (Ratzeburg). Gypsy moth growth was reduced on diets containing allelochemicals, and the magnitude of reduction was greater on diets supplemented with phenolic glycosides than on diets supplemented with tannic acid. Reductions in gypsy moth performance translated into prolonged development, reduced cocoon weight, and higher incidences of mortality for C. melanoscela. Overall, phenolic glycosides reduced C. melanoscela performance slightly more than did tannic acid. These results show that interactions of C. melanoscela with its host are influenced by the diet of the host, demonstrating that plant allelochemicals can have profound effects not only on plant-herbivore interactions but on herbivore-natural enemy interactions as well
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/26.3.668