Bevel-helical gear box B3 ering data Dimensions in mm Gear unit sizeHigh sp B3VV-23-C

Flender/Flender Gear Units/Bevel-helical gear box B3

Oryzaephilus surinamensis Rice Grain beetles Crytolestes spp. Rice Moths Angoumois grain moth Sitotroga cerealella Paddy Almond moth Ephestia cautella Wheat, rice Rice moth Corcyra cephalonica Rice Indian meal moth Plodia interpunctella Wheat Psocids Booklice Liposcelis spp. Rice Grain Storage: Perspectives and Problems 1 present along with sound kernels. Psocids, commonly encountered in grain storage prem- ises, contribute to the contamination of grains as lth. They were once believed to be onlyscavengers and mold feeders. However, it has now been established that they do causevisible damage and loss of grain of about 3% in storage period of 6 months. Psocidabundance is an annoying problem to the godown managers and for the laborers who carry grain in bags (. The pest status of psocids has gained prominence in recent years. Among moths, . cerealella attacks newly harvested corn, sorghum, and paddy rice. Infes- tations are largely restricted to the peripheral layers. The other pests, Plodia interpunctella (Indian meal moth), Ephestia cautella (tropical warehouse moth), and Corcyra cephalon- ica(rice moth) complete their life cycle outside the grain itself. The signicance of grain insect pests and their biology have been discussed elsewhere (. Stored grain insects cause quantitative losses primarily by way of feeding and, in species such as Sitophilus spp., damage is done while depositing their eggs. Adults of . dominica andP. truncatus create lot of grain dust because of their innate behavior of boring. Insects such as . interpunctella andT. granarium preferentially feed on the grain embryo and cause germination losses. There is considerable loss of nonreducing, reduc-ing, and total sugars in the infested grains. Insects contaminate the grains with their excreta containing uric acid, exuviae, fragments of dead insects, and webbing (by pyralid moths). Insect contamination decreases the market value of the grains and frequently results in the rejection of the m