jALEOUG H grasshoppers are not usually noticed 
by the farmer until they have reached a con- 
siderable size, they begin to injure his crops imme- 
diately 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 lay of the 
fields and other infested areas will permit their use, 
but these appliances are seldom entirely satisfac- 
tory. 
The best results can be obtained when all the 
farmers in a community cooperate. 
The most practicable means of controlling grass- 
hoppers is by the application of the poisoned baits 
described on pages 15 and 16 of this bulletin. 
In the semiarid parts of the country, as in Cali- 
fornia and the Southwest, the poisoned baits should 
have water added to them to counteract the rapid 
drying and should be applied during the late after- 
noon. 
Where 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. 
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