204 THE CANADIAN ENTOMOLOGIST. 



The following are a few of the results selected from 18 experi- 

 ments and comprise those in which Kansas Grasshopper mixture, 

 and a modification of it in which Shorts were used, were compared: 



Poison was applied at the rate of 20 lbs. per acre. Examina- 

 tions were made 48 hours after application. This was necessary, 

 since dead worms are eaten readily by those still alive. 



Applied to moist soil, and moistened by a shower. 



20 lbs. Bran, 2 quarts Molasses, 1 lb. Paris Green, 3 Oranges, 

 33^2 gallons Water. — 26% dead. 



20 lbs. Shorts, 2 quarts Molasses, 1 lb. Paris Green, 3 Oranges, 

 1 gallon Water. — 56% dead. 



Applied dry two days after mixing. 



20 lbs. Bran, 2 quarts Molasses, 1 lb. Paris Green, 3 Oranges, 

 3M gallons Water.— 24%, dead. 



20 lbs. Shorts, 2 quarts Molasses, 1 lb. Paris Green, 3 Oranges, 

 1 gallon Water. — 76% dead. 



In the second case the weather was warmer, and more normal. 



We found that the fruit in these and other mixtures had a 

 slight beneficial effect, though the killing was as good with the 

 following mixture: Shorts, 50 lbs.; Molasses, 2 gallons; Paris Green, 

 1 lb., applied at the rate of 20 pounds per acre. In this case no 

 water was used, and we find that the benefit derived from using 

 Paris Green in greater quantities than one pound to fifty pounds 

 of Shorts (or Bran) does not warrant the extra cost. 



The only objection to Shorts is the difficulty of mixing, but 

 if lots of not more than 50 pounds are mixed at a time, and the 

 reduced quantity of water is added slowly during the mixing, the 

 difficulty is minimized. Strangely enough, the greater the propor- 

 tion of molasses to water the more readily the mixture is made. 



From the above figures, which represent very few of the 

 results obtainei from our numerous exp2riments, all pointing to 

 the same conclusions, it will be seen that we are having great 

 difficulty in poisoning worms under our dry conditions, but by 

 substituting bran with shorts the problem of control is brought 

 nearer to solution, and since this modification has proved beneficial 

 under a variety of conditions we believe that it will be found to be 

 of value wherever poisoning is practised for the control of cutworms. 



