Farm Pests cause great damage estimated at about 50% of the world agricultural production, forcing states to spend much on pests control using different methods mainly chemical pesticides. Despite quality and quantity improvement of agricultural produce resulting from modern technolog ies such as high yielding varieties and genetic mutations, crops are still attacked by pests. Latest scientific efforts to protect crops are represented by using biotechnologies such as tissue culture and genetic engineering . Production of genetically modified crops began commercially in 2003 in some countries. This techno logy focuses on developing pest­ resistance varieties for three crops; Cotton , Maize and Soybean . Some tests have already been executed on safety of genetically modified crops to human and animal health. It is, however, early to formulate final judgment of technology. Yemen is afflicted with traditional agriculture, existence of growing food gap due to escalating population growth, and widespread of farm pests attacking crops. Therefore , this requires introduction and utilization of biotechnologies in a manner consistent with prevailing problems of crops.

Key Words :Crop protection. biotechnologies, bio-safetv. Vernen.