GRASSHOPPERS AND OTHER INJURIOUS INSECTS OF 1911 AND 1912. 



were so favorable for their multiplication that in 1910 they were 

 much more numerous. In that year about two-thirds of our flax 

 crop was sacrificed to locusts. In 1911 we experienced the culmina- 

 tion of their destructiveness, — the result of the increase of the 

 three preceding years under conditions favorable to these insects. 



teP:t R.secx. 



= n7.lrL{/ittatus 

 -m aticL/ics 



Fig. 4. Showing portions of State where M. tiflanix and .1/. hi ri/laltia were most 

 abundant in 1911. Somes. 



In that year grasshoppers were very bad in various localities in the 

 western third of Minnesota from the Canadian border to the Iowa 

 line. Many farmers lost from 25 per cent to 95 per cent of their 

 crops. During the year 1911 they were also bad in Iowa, Wiscon- 

 sin and other states, and in that year, too, many complaints were 



