Category: OLI
Minimum Life Cycle: 25 days to four years in diapause.
Distribution: The most important pest of stored products, attacking principally cereals and oil seeds.
Biology:
Eggs - Up to 80 per female.
Larvae - May enter diapause under favorable conditions when it becomes difficult to control with insecticides.
Pupae - Found in cracks and crevices.
Adults - Short lived; do not feed or fly.
Khapra Beetle (Trogoderma granarium). The Khapra beetle is under strict quarantine from the United States. It is a member of the dermestid family and is a voracious feeder of grain products. The insect is capable of hiding in cracks and staying in diapause for years. It is a particularly difficult insect to control with insecticides. Pheromones and traps are used to detect and monitor these insects. The adults of this species do not fly, in contrast to most other dermestids (Figure 17).
(Slide and top caption courtesy of ICI Americas, Inc.)