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FOLIAGE CONSUMPTION BY THE VARIABLE OAK LEAF CATERPILLAR, HETEROCAMPA MANTEO (LEPIDOPTERA: NOTODONTIDAE), ITS USE IN DEFOLIATION PREDICTIONS1
Published online by Cambridge University Press: 31 May 2012
Abstract
Total foliage consumption per larva of Heterocampa manteo (Doubleday) was 334 ± 49.3 cm2 of leaf area. Approximately 85% of the consumption occurred during the fifth larval stadium. There was no significant difference in consumption by H. manteo when fed northern red oak, Quercus rubra L., or white oak, Quercus alba L. Foliage consumption at 27 °C, 24 °C, and 21 °C did not differ significantly; but larvae reared at 15.5 °C consumed 42.6% less foliage. Larvae parasitized by Diradops bethunei (Cresson) consumed 61.3% less foliage than non-parasitized larvae reared at the same temperature. Two methods of predicting defoliation are discussed based upon larval foliage consumption data.
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- Copyright © Entomological Society of Canada 1978
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