METHOD: Test Diet CONDITIONS: Green House - 16hr light at 20-26C with 60-90% RH METHOD NARR: Foliar glycoalkaloid content was determined. Foliar PPO content was measured. Neonate larvae were confined on plants and mortality ande determined at 2-day intervals. Resulting adults were assessed for fecundity. RESULTS NARR: No glycoalkaloids were detected in foliage of ber 437334. No significant differences were observed in fecal content. A highlyon was observed between larval weight and PPO. A significant positive correlation was found between PPO levels in the potato leaves and CPB larval mortality. A significant negative correlation was found between number of eggs. Total PPO in foliage was sttrongly negatively correlated with relative growth rate of larvae. AUTHOR EXPLANATION: This study suggests that PPO has a negative effect on CPB. Results also suggest that solasonine and solmargine dohe resistance shown here.