Bruchid (Callosobruchus chinensis L) is the most important insect pest of pulses in store. Loss assessment study due to Bruchids in store on chickpea was conducted from October 2004 to March 2005 under laboratory conditions (25-27°C and 61% RH) in the College of Agriculture Asmara University. The treatments used were: Control, (with no treatment), mixture of sand, taff, ash, Malathox 1% and sesame oil. Monthly data were collected on number of damaged and undamaged grains, weight loss and germination percent. The highest mean grain damage was recorded in treatments of control, mixture of sand, and taff with a mean count of 16.97, 15.37 and 8.02 g respectively. The corresponding weight grain damage for mixtures of taff, sand and control were 5.46, 14.53 and 20.07 g, respectively. The most effective treatments were malathox, sesame oil and ash with a mean grain damage loss of 0.93, 0.11 and 0.21, respectively. The germination percentage of the damaged grains decreased with the increase population of the pest and period of storage.
Key words: Callosobruchus chinensis, storage, Ash, sand, taff, sesame oil, germination percent.