HE SEVERE grasshopper infestations of recent 
years have made it urgently necessary to put 
before the farming population in many communities 
the most practical and efficient methods of destroy- 
ing these pests. In the Pacific Coast States condi- 
tions are such that the grasshoppers are able to de- 
velop in the immense uncultivated areas and migrate 
to the irrigated districts, attacking the cultivated 
crops and doing extensive damage. 
The use of the hopperdozer, the use of fire, the 
destruction of the eggs in the soil, driving the wing- 
less species and nymphs into pits, and the use of 
poisoned bran mixture are some of the control meas- 
ures that have proved efficient under western con- 
ditions. The most successful of these has been the 
poisoned bran mixture, which is discussed in detail 
on pages 8 to 11. 
The following pages also outline a program for 
organized community action; describe the common 
species of grasshoppers; and discuss control-on the 
ranges, in alfalfa fields, in orchards, vineyards, 
and mountain meadows, and in corn, grain, and 
bean fields. 
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