COBN INSECTS 



209 



191. Grasshoppers. — The usual means of combating 

 these consist in driving special catching devices, called 

 " hopper-dozers," through surrounding areas of meadow 

 or weeds, where the grasshoppers congregate. 



t 



Fig, 



102. — The Cokn Ear-wohm at Work in the Tip op an Eah 

 P OP Gbeen Coen. 



