Summary Insect screens are often used in tobacco facilities to exclude insect pests. Previous studies using laboratory cultures indicated that with openings smaller than 1.0 mm adequate prevent the passage of cigarette beetle, Lasioderma serricorne . The beetles from natural populations rather heterogeneous, and their body sizes may vary. Studies were conducted confirm relationship between mesh...

Stored-product insects are a perennial problem in retail stores, where they damage and contaminate susceptible merchandise such as food products and animal feed. Historically, pest management in these stores has relied heavily on chemical insecticides, but environmental and health issues have dictated use of safer methods, and these require better monitoring. A monitoring procedure that employs...

One of the first successful experiments to verify the effects of an ionizing radiation over an insect (Lasioderma serricorne F., the cigarette beetle) was performed by Runner in 1916. Soon afterwards, Muller demonstrated in 1927 that rays from radioactive substances could induce genetic damage and a larger number of dominant lethal mutations in Drosophila melanogaster Meigen, which were express...

The Indianmeal moth, Plodia interpunctella (Hübner), was selected as a representative stored-product moth to test the validity of contour mapping of trap catch for pest monitoring in warehouses and retail stores. Three experiments, each replicated five times, were conducted in a 3.2 by 9.0-m aluminum shed. Each experiment involved placing pupae at a single release point (source) and recording t...