The Indianmeal moth, Plodia interpunctella (Hübner) (Lepidoptera: Pyralidae), is a serious insect pest of stored products, and its late-instar larvae diapause as pre-pupae. Diapause induction in P. interpunctella was investigated for four populations obtained from Modesto, California, U.S.A.; Vancouver, British Columbia, Canada; and two locations from Winnipeg, Manitoba, Canada. Insects were re...

The morphogenesis of ovaries and the organization of germ cells within them were visualized during the larval stages of the moth, Plodia interpunctella. The germ cells were observed by utilizing confocal microscopy coupled with immuno-fluorescent staining for the alpha-crystallin protein 25 (alphaCP25). The alphaCP25 was previously shown to be specific to germ cells of pupae and adults, and thi...

Heat treatments have been suggested as alternatives to chemical fumigants for control of postharvest insects in dried fruits and nuts. Conventional forced hot air treatments heat product too slowly to be practical, but radio frequency treatments are capable of more rapid product heating. While developing radio frequency heat treatments for dried fruits and nuts, the heat tolerance of nondiapaus...

alpha-Crystallin protein cognates were found in germ cells of the Indianmeal moth, Plodia interpunctella (Shirk and Zimowska, 1997). A cDNA clone of 674 bp with a single open reading frame was isolated for a 25,000 molecular weight polypeptide member of this family, alpha CP25, and a single transcript of approximately 700 bp was found in the ovary of vitellogenic females. Both the DNA sequence ...