in recent years a large number of pesticides used in the warehouses fumigation have been abandoned, and only methyl bromide and phostoxine are widely used for fumigation of foodstuffs and storage spaces. due to possibility of health impairment, environmental contamination and resistance enhancement of insects, the use of these two fumigants is under scrutiny and restriction. under such circumst...

This study was carried out to determine the post-treatment efficacy of three local Beauveria bassiana isolates by applying them against adults common stored-product pests, Sitophilus oryzae L. (Coleoptera: Curculionidae) Rhyzopertha dominica F. (Col.: Bostrichidae) and Oryzaephilus surinamensis Silvanidae). 
 For biological tests, wheat grains were mixed with fungal spores at 1000 ppm (w/w...

The relationship between number of holes in a grain probe trap body and capture of stored-grain pests was determined in laboratory tests using adults of the rice weevil, Sitophilus oryzae (L.), the sawtoothed grain beetle, Oryzaephilus surinamensis (L.), and the red flour beetle, Tribolium castaneum (Herbst). Polyvinylchloride (PVC) probe bodies were attached to electronic sensor heads, and ins...

Source of diatomaceous earth (DE), insect species, grain moisture content, temperature, method of application and duration of exposure were all factors that in ̄uenced the mortality of stored-product insects. In all tests, regardless of the insect species, or source of DE, the lower the moisture content of grain, the greater the mortality. DEs from di€erent geographical locations had di€erent e...