METHOD: Test Diet CONDITIONS: Green House - 14h light at 18-29C METHOD NARR: Leaflets from one side of a leaf were sampled and pooled for SGA analysis. Larvae were allowed to feed on leaf disks cut from leaves opposite those sam consumed was measured. Hybrids of phu and chc were also evaluated. The predominant SGAs, solanine and chaconine, leptine and leptinine, were extracted and hydrolyzed to their corresponding aglycons, solanidine, leptinidinentified using capillary gas chromatography. RESULTS NARR: Chc contained solanidine (confirming presence of solanine/chaconine) leptinidine and acetylleptinidine (indicating presence of leptinidines and leptines respectively).ly lower feeding rates on chc in both experiments. AUTHOR EXPLANATION: Concentrations of ALD, the aglycon of leptines, were significantly correlated to feeding supression by CPB, indicating leptines were more important than other SGtent in predicting feeding rates.