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Summary: 374 Florida Entomologist 92(2) June 2009
THE EFFECT OF LARVAL DIET AND SEX ON NECTAR NICOTINE FEEDING
PREFERENCES IN MANDUCA SEXTA (LEPIDOPTERA: SPHINGIDAE)
DAVID N. SHARP1
, AMANDA J. LENTZ-RONNING1
, JOHANNA BARRON1
AND LYNN S. ADLER2
1
Department of Biology, Virginia Polytechnic Institute and State University, Blacksburg VA
2
Department of Plant, Soil, and Insect Science, University of Massachusetts, Amherst MA
Many Lepidoptera interact with the same
plant species as both herbivorous larvae and nec-
tar-feeding adults (Adler & Bronstein 2004), pro-
viding the potential for plant secondary com-
pounds to influence both pollination and her-
bivory through expression in floral and foliar tis-
sue. Secondary compounds in nectar may be
costly to plants if they deter pollinators, but ben-
eficial if they deter oviposition of herbivorous off-
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