290 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 14 



at the rate of 2 quarts to each 25 pounds of wheat bran. The mixtures 

 were placed on cards in an infested field and run similar to the experi- 

 ments explained above. The following table shows the syrups used, 

 the total number of counts made, and the total number of hoppers at- 

 tracted to each. 



Table VIII - Experiment 1968 Performed on August 26, 1919 on Infested Land Grown 

 TO Weeds. 



Syrup Total counts made. Total ntmiber hoppers attracted. 



Black Strap Molasses 60 831 



Dark Karo Corn Syrup 60 490 



Light Karo Corn Syrup 60 510 



Sorghum 60 476 



New Orleans Molasses 60 439 



Check (wet bran) 60 435 



Totals 300 3181 



The syrups were run in duplicate, 30 coimts being made from each, 

 the combined results of which are shown in the above table. These 

 data show that black strap molasses attracted by far more hoppers 

 than any of the other syrups, which were very little better than the 

 check (wet bran). 



Experiments on Body Materials 



The recent advance in the price of wheat bran has made its use in 

 grasshopper baits almost prohibitive in certain localities. Not only 

 this but it has been impossible to secure wheat bran at any price in cer- 

 tain regions. Accordingly an experiment was planned whereby var- 

 ious body materials were run side by side, as shown in the above ex- 

 periments and records made of the number of hoppers attracted to each. 

 In all of these combinations black strap molasses was used at the rate 

 of 2 quarts to each 25 pounds of body material. 



Table IX - Experiment 1946, Performed on August 11, I9l9 on Infested Land Grown 

 TO Weeds. 



Body Material Total number counts Total number hoppers attracted. 



Hickory sawdust 48 1571 



Hickory sawdust & 



bran 50-50 48 2891 



Red gum sawdust 48 1975 



Red gum sawdust & 



bran 50 50 48 220/ 



Hardwood sawdust 48 . 1430 



Hardwood sawdust & 



bran 50-50 48 2201 



Soft pine sawdust 48 1303 



Soft pine sawdust & 



bran 50-50 48 2046 



Horse manure 48 1214 



Bran alone 48 2522 



Totals 480 19.040 



