18 MONTANA EXPERIMENT STATION BULLETIN 366 



Stillwater, Sweet Grass, Toole, and Yellowstone.. Besides this, 

 three Federdal agencies participated on lands within the State 

 but under their jurisdiction. These were the Custer National 

 Forest, the Crow, and the Tongue River Indian Agencies. 



That the campaign was appreciated was evidenced in various 



parts of the State. In his final report for Cascade County, County 



Agent D. P. Thurber stated: 



"It is interesting to note that practically every farmer in the area 

 is fully convinced that the cricket program was directly responsible 

 for all of the crop that was harvested. In other words they said that if 

 there had been no program they would have had no crop. There was 

 not a single man who thought we should not continue with the program 

 next year." 



A wheat farmer with extensive holdings in Big Horn County 

 wrote as follows: 



"We believe on our job .... we have successfully battled crickets 

 this season, and we estimate our loss from crickets at less than one 

 per cent. Owing to the location of our farms .... it is generally con- 

 ceded that we have successfully combatted the crickets on an area 

 representing two hundred fifty to three thousand acres. In fact, the 

 farmers between our job and Hardin, representing many thousands of 

 acres, did not get into the campaign at all, as our barriers prevented 

 their (the crickets') progress." 



for 1938.— Control work in 1937 was almost entirely for the 

 protection of crops, and therefore most of the control opera- 

 tions were limited to crop land or areas immediately adjacent 

 to crop land. This affected control work in 1938 extensively, 

 for it was evident throughout the State that where crickets were 

 fought late in the season in 1937 there was a great reduction in 

 the 1938 population. In some areas where control work was not 

 extensive in 1937 there was a reduction from a moderately heavy 

 to a light infestation, indicating that other factors were also at 

 work. In Lake and Sanders counties there was an increase over 

 1937, and there is evidence of an increase in the extreme north- 

 east counties of the State. 



The increase in rainfall of 1938 over 1937 reduced the actual 

 time which could be spent in the fields by the crews, and may 

 have affected the movement of the crickets also. 



There were several important changes in the organization 

 and the prosecution of the 1938 campaign. Federal assistance 



