The influence of temperature on development of Plodia interpunctella (Lepidoptera : Pyralidae) on dried vegetable commodities

The development of the immature stages of Plodia interpunctella (Hubner) in six dried vegetable commodities was studied at five temperatures ranging f rom 17 to 32 +/- 0.5 degrees C. The rate of development was not significant ly affected by diet at 17 degrees C but at the higher temperatures was fast est on green onion and generally was slowest on onion. The rate of developm ent increased with temperature on all diets. Immature survival was highest on green onion, followed by green paak ts'oi and then carrot, pepper, cabba ge and onion. (C) 2000 Elsevier Science Ltd. All rights reserved.