June, '21] 



FORD AND LARRIMER: GRASSHOPPERS AND BAITS 



289 



bran mash for grasshoppers. The data show that the check total was 

 1941 hoppers while the black strap molasses totaled 2488, being 547 

 or slightly over 28% more than the check. Certainly one could well 

 afford to add black strap molasses at the rate of 2 quarts per each 25 

 pounds of bran to obtain a 28% increase in attractiveness 



In experiment 1960 (Table VI) it is seen that vinegar and black strap 

 molasses lead the list with 417 hoppers, cantelope and black strap be- 

 ing second with 400. Due to lack of time these two combinations were 

 run but once and showed up favorably. As soon as opportimity affords 

 further experimentation will be performed on these flavors. 



Next it was decided to determine whether or not the use of salt in 

 bran mash adds to its power to attract grasshoppers. Accordingly 

 an experiment was devised whereby four flavor combinations with 

 and without salt (enough to taste strongly) were run side by side as 

 were the experiments shown above. The following table shows the 

 flavors used, the total number of counts made, and the total number 

 of grasshoppers attracted to each. 



Table VII - Experiment 1942, Performed om August 7, 1919 of Infested Land Grown To 

 Weeds. 



Flavor 



Total number of counts 



Total number hoppers attracted 

 Without salt. With salt 



213 



Totals 



200 



1089 



The above table shows that a total of 3508 hoppers were recorded 

 in 200 separate counts. In every case the combinations without salt 

 attracted a greater number of hoppers, the total being over 23% more. 

 This would indicate that no benefits are derived from the use of salt 

 in bran mash for grasshoppers, in fact here it apparently repels rather 

 than attracts them. 



Syrup Experiments 



Having come to a definite conclusion concerning the attractiveness 

 of flavors in bran mash, next it was decided to make observations on 

 the attractive powers of various syrups. Several of the more common 

 syrups were secured and used in the mixing of small amounts of bait 



