Metabolism of Nicotine by Tobacco-feeding Insects

RECENT experiments in this laboratory have indicated that the green peach aphid, Myzus persicae (Sulz.), avoids the nicotine in tobacco plants by selective feeding in the phloem1, whereas the tobacco hornworm, Protoparce sexta (Johan.), excretes nicotine and other ingested alkaloids before a toxic dose can accumulate2. The present communication presents… CONTINUE READING