1.Any of various cereal plants or grains, especially the principalcrop cultivated in a particular region, such as wheat in England or oats in Scotland.
2.Ninety one species of principal insect pests of the grassland and forage crop field were recorded from Gansu. These included 63 species of Orthoptera, 16 species of Homoptera, 2 species of Hymenoptera, 5 species of Thy sanoptera, 4 species of Diptera, and 1 species of Acarina
