120 



IOWA ACADE.MY OF SCIENCE 



Vol. XXV, 191S 



three days were spent in a county. This work is beinu carried 

 on in cooperation with the Agricultural Extension Department 

 at Anaes. 



Mr. E. V. Walter, the government extension entomologist, 

 talked at 33 meetings in this campaign, with an average attend- 

 ance of 65 persons to a meeting, and a total of 2,155. The meet- 

 ings were held from March 19 to April 10, 1918. 



In this instance the entomologist has been able to give specific 

 recommendations in advance. By holding these meetings in 

 small communities in the white grub district the essential infor- 

 mation is put directly into the hands of those people. to whom 

 it is of most value. Working through the county agricultural 

 agent he also becomes better informed on the subject and will 

 be better equipped to fill his position as farm advisor. 



In the summer of 1918 a second man, Professor H. E. Jaques, 

 head of the Department of Biology, Iowa Wesleyan College, is 

 also engaged in this work. 



Grasshoppers in 1917 caused much injury in Iowa, especially 

 in the southern portion of the state, where clover was badly 

 damaged. In certain counties clover was practically a failure. 



^ra ishc 



reals s 



poer 

 Fi^rure 8. 

 Fig. 8 shows the localities where grasshoppers were reported to 

 the experiment station in 1917. 



While damage is likely to occur in Iowa in 1918. its extent is 

 difficult to foretell. Several reports of ''cabbage snakes "" (.Mer- 



