Serious infestations of sorghum midge are relatively uncommon in Tennessee, but they can be very damaging. Sorghum midge is a small, gnat-like insect that is reddish-orange and about 1/10-inch long. Female sorghum midges lay eggs only during the bloom stage. Eggs are laid in the spikelets between the glumes of a floret. The larvae feed on the developing seeds, causing them to dry up and die.