Effect of Different Storage Types on the Development of Sitophilus granarius (Coleoptera: Curculionidae)

In this study, it was investigated the effect of storage form (grain-spike), grain moisture content (12, 14, 16%), storage temperature (10, 20, 30 ˚c), storage period (3, 6 month) on the number of granary weevil, sitophilus granarius (l.) and rate of infestations in stored cereals. bezostaya and krik bread wheat varieties were used in the storage study as grain and spike. at the beginning of storage, five granary weevils were placed into per glass jar and reared on wheat under controlled environmental conditions. during storage, insect development and damaged grain were higher in storage media of krik variety than that of bezostaya variety. after storage period, the number of granary weevil and damaged grain were determined. the increase in the grain moisture content, storage temperature and time resulted in increase in the number of granary weevil and damaged grain. the amount of damaged grain and granary weevil of wheat stored in spike form was lower than wheat stored in grain form. for this reason, wheat stored in spike form was more tolerant than wheat stored in grain form to insect damage.