stored commodities are reliable to attack by stored pests that cause significant losses to the stored grains in quantity and quality estimated by 40%. Control measures of the stored pests depend mainly on the use of conventional pesticides which cause many serious problems in the environment, include: contamination of the biosphere, toxicity to man, animals and etc. These problems had drawn the attention to adopt new pest management strategies. Laboratory experiments were carried out in Faculty of Agriculture, niversity of Khartoum, Sudan to evaluate friendly alternatives to synthetic pesticides, namely the use of garlic fumigant action to safe and protect stored products. Test insects included the red flour beetle, Tribolium castaneum (Herbst)(adult); the lesser grain borer, Rhyzopertha dominica (F.)(adult); the khapra beetle Trogoderma granarium (Everts)(adult) put all together in one storage (Air- tight glass fumigation chambers (161616 cm3)). Fumigation was carried out in small jute sacs (storage materials for grains in Sudan) contained 100 g sorghum grains and the test insects put all together at garlic vapor concentrations ranging between 1- 0.001% (V/V) for several exposure periods 15 - 60 days. Results revealed that garlic oil vapor was able to penetrate through jute sacs and affect the insects inside the sacs . Results also indicated that fumigation with garlic volatile oil caused progressive reduction in percentage weight loss, percentage damage seeds, weight of cast skin and other depress and significant increase in weight of dead insects as compared to the control. The level of protection is negatively related to the dose and exposure periods in most cases.