236 
JOURNAL OF ECONOMIC ENTOMOLOGY 
[Vol. 13 
two ounces Paris green and one ounce salt. These papers were sown 
between 5:00 and 6:00 a. m. over a clover field containing about 25 
grasshoppers to the square yard. An adjoining strip in the same field 
was treated with the standard poison bran mash at the rate of about 10 
pounds per acre. The papers were sown as evenly as possible over the 
field in such a manner as to leave the bits of paper about six inches 
apart. Counts made the second day from the time of application 
showed nearly four times as many dead hoppers per square yard in the 
area where the papers had been used as in that sown with the poison 
bran mash. At this time grasshoppers were still feeding in consider¬ 
able numbers upon the papers, although they fed very little upon the 
poison bran except during the first few hours after it was applied. In 
fact, several later visits to this field showed that the hoppers continued 
to feed upon the poisoned papers until they were almost entirely con¬ 
sumed. The results of two other tests conducted in the same manner 
showed a much higher number of grasshoppers killed in parts of the 
field where the poisoned papers were scattered than in that treated 
with the poison bran mash. 
While sufficient tests have not been carried out to proye that greater 
numbers of grasshoppers can be killed by the use of poisoned papers 
than with the poison bran bait, it seems advisable to mention this 
method, as it has several distinct advantages. If later experimental 
work proves that such a method is more, or equally, effective, the prep¬ 
aration of such papers might be taken up by some of the insecticide 
companies. It seems that such a paper could be manufactured, con¬ 
taining the poison and some substance rendering it attractive to the 
grasshoppers, and could be sold in bulk. To prepare it for use one 
would merely have to soak this paper in water and distribute it on the 
infested fields. Such a material could probably be sold much cheaper 
than the homemade poison bran mash could be prepared, and if dis¬ 
tributed through the usual trade channels, would be used more readily 
by the average farmer than is the case where he has to mix the 
materials himself. 
Mr. Stewart Lockwood: I would like to ask if any count was 
kept of the grasshoppers feeding on the poisoned paper when it was 
damp and when it was dry. Did they eat more of the damp paper 
than of the dry paper? 
Mr. W. P. Flint : The papers seem to work in much the same man¬ 
ner as the bran. When the paper was distributed it was damp and 
the grasshoppers came to it from quite a distance, although quite a 
few were found feeding on the paper in mid-afternoon of a bright day 
when it was thoroughly dried up. 
