Nov. 5. 1921 Pale Western Cutworm 309 



TESTS AT WILSALt 



On June 8, 19 19, a similar test was conducted at Wilsall. The follow- 

 ing formula was used : 



Shorts pounds. . 25 



Paris green do .... ^ 



Salt :':v^...v;?..';:.:;v.r. : do % 



Molasses quarts . . 2 



Water. gallon . . i 



After mixing, the mash was spread out to dry, which with a hot sun 

 and a fair breeze was accomplished in half a day. The mixture was 

 distributed over 25 acres of infested wheat at the rate of 12 pounds of 

 the dry mash to the acre. Sixteen acres were sown with all the spouts 

 of the drill working and 9 acres with every other one closed. The drill 

 was run across the old grain rows. The greatest difficulty encountered 

 was the same as in the test at Havre — the mixture was too light to feed 

 evenly through the drill. This was overcome by using two men on 

 the drill, one to drive and one to keep the bran shaken down where it 

 would come in contact with the disks of the drill. This was done by 

 frequently pounding the seeder box with a padded hammer and punch- 

 ing out packed masses with a small stick. Dead and dying worms were 

 found the second day after the poisoned bran was drilled in, and on the 

 third day a careful examination was made and it was estimated that 

 from 50 to 60 per cent of the worms had been killed. The field was 

 examined two weeks later, and there was a very noticeable difference in 

 the number of worms found in the treated and untreated areas, but this 

 did not prevent total destruction of the crop. 



TEST AT WIL1.0W CREEK 



During May, 1920, poisoned bran mash was distributed with a grain 

 drill over a very badly infested field at Willow Creek. Cutworms were 

 uniformly scattered over a 40-acre field of spring wheat, and at the time 

 the poisoned bran mash was applied had destroyed about half the plants. 

 Conditions were ideal for a good test of control methods. The following 

 mixtures were used : 



FORMUI,A NO. I 



Shorts pounds. . 25 



Paris green do ... . i 



Molasses quarts.. 2 



Salt pound. . i 



Water gallon . . i 



After mixing, this was thoroughly dried out and was then seeded 2 

 inches deep through a Van Brunt drill at the rate of 20 pounds to the 

 acre. Two acres were sown. This mixture did not feed uniformly 

 through the drill unless constantly agitated. 



