Grain sorghum production in the U.S.A. is somewhere around 500 – 700 million bushels annually. In most parts of the world grain sorghum is grown for human consumption. In the U.S.A. it is grown primarily for feeding livestock.The sorghum midge is the most destructive pest of grain sorghum. High populations of the sorghum midge are capable of reducing the production in a sorghum field from about 20 to 100 percent if proper control measures are not taken. Economic, effective control of the sorghum midge is dependent upon a thorough knowledge of its life cycle and habits, as well as its relation to the blooming pattern of the grain sorghum plant.