"Although grasshoppers are not usually noticed by the farmer until they have reached a considerable size, they begin to injure his crops immediately upon hatching from the egg. They should be detected and combated, therefore, while young and small so that time, labor, and material, as well as crops may be saved. The destruction of grasshopper eggs by fall plowing, disking, or harrowing is recommended where practicable. Hopperdozers or other grasshopper traps are sometimes partially effective where the law of the fields and other infested areas will permit their use, but these appliances are seldom entirely satisfactory. The best results can be obtained when all the farmers in a community cooperate. The most practicable means of controlling grasshoppers is by the application of the poisoned baits described in pages 15 and 16 of this bulletin. In the semiarid parts of the country, as in California and the Southwest, the poisoned baits should have water added to them to counteract the rapid drying and should be applied during the late afternoon. When the climate is moist as in the Eastern and southern States, the baits may be prepared without the water and applied during the early morning hours."--Page [2].