Tob. Sci., 1976, 20-50, p. 165-166, ISSN.0082-4523

Cigarette beetle oviposition and egg hatch at selected temperatures

Tobacco Storage Insects Research Unit, Agricultural Research Service, USDA, Richmond, Virginia USA

Oviposition by female cigarette beetle, Lasioderma serricorne (F.) and egg hatch were studied in temperature-humidity cabinets within a temperature range of 7.2°C-26.7°C. Egg production increased with each rise in temperature. The percentage of females ovipositing was 2.2% at 7.2°C and 97.8% at 26.7°C with the percentage increasing significantly after 12.8°C. Percent of egg hatch at 15.6°C for eggs laid by females reared on whole wheat flour and tobacco medium was 1.0% and 1.1% respectively; percent of egg hatch at 18.3°C was 57.6% and 59.1%, respectively. The incubation period ranged from 23-30 days at 15.6°C and from 17-25 days at 18.3°C. These findings show that oviposition and egg hatch occur at temperatures lower than previously thought.

(Full article published with kind permission from "Tobacco International")