70 Bulletin UASVM Agriculture, 68(1)/2011 Print ISSN 1843-5246; Electronic ISSN 1843-5386 Survey of Insects Pest Stored and Biological Control of Trogoderma Granarium Everts in Setifian Region (North-East of Algeria) Mustapha BOUNECHADA 1) , Mohamed FENNI 2) , Farida BENIA 2) 1) University of Setif, Faculty SNV, Department of Animal Biology and Physiology, El Bez, Setif, Algeria, Bounechadam@yahoo.fr 2) University of Setif, Faculty SNV, Department of Agronomy, El Bez, Setif, Algeria Abstract. Cereal grains are the major source of food for humans and most domesticated animals. In many developing countries like Algeria, overall post-harvest losses of cereals and legums of about 10–15% are fairly common. The study was conducted in Setif high plains in the north east of Algeria. The Setif region is one of the important areas for the production of cereal crops. The objective of this work was to survey the insects pests stored in different stored products in Setifian region. Using different methods: manual samples, traps, and probes have been used to determine the presence of insects and manual inspection, sieving, cracking-floatation and Berlese funnels are used at present to detect insects in grain. We recorded seven species (6 Coleoptera: Trogoderma granarium, Tribolium castaneum, Rhyzopertha dominica, Tribolium confusum, Sitophilus granarius, Tenebrio molitor and 1 Lepidoptera: Ephestia kuehnielle). The relative abundance of the different species was discussed. Trogoderma granarium was the dominant species (82,10%) of insect pests recorded from cereals grains. So, biological control on Trogoderma granarium is described. The stored conditions for these species are also discussed. Keywords: botanical extract, cereal grains, Coleoptera, Lepidoptera, Ocimum basilicum, warehouses. INTRODUCTION Insects are a major cause of post-harvest losses of stored foods and food products the world over. Stored-product insect infestation can occur beginning at harvest and continuing through bulk storage (Mansoor-ul-Hasan et al., 2006). So a high risk for stored wheat and barley insect pests, which can cause significant damage and reduction in grain value. The protection of stored products is becoming increasingly important. To limit losses in stored grain, it is essential to find appropriate solutions. Fauna survey and biological control of insects associated with stored products have been carried out of many authors. The aim of the present work was is first time to survey, identify and determine the rate of infestation with insects associated with grain cereals stored in three storage cooperatives in Setifian region and in the second time we try to apply a leaf powder of botanical Ocimum basilicum at different doses against one of the most important insect pest stored Trogoderma granarium as a biological control. MATERIALS AND METHODS SURVEY INSECTS ON CEREALS GRAINS STORED Surveys were carried out in March to July, 2009 from 3 cooperatives cereals and dried vegetables stored cereals (CCLS) represented the commercial facilities of the region of Setif