Grasshopper Control 
i5 
abundant and localized about the borders of the fields or else¬ 
where. The poisons used should be Paris green or arsenate of 
lead, the former at the rate of 2 pounds, and the latter at about 
3 pounds of powder or 6 pounds of paste, to 50 gallons of water. 
Care should be taken not to use these sprays on plants where do¬ 
mestic animals are likely to feed. Either of the above sprays can 
be used very effectively after cutting alfalfa. In these cases, nar¬ 
row swaths of alfalfa should be left standing at intervals thruout 
the field and thoroly sprayed with one of the above poisons. This 
green strip will act as a trap row and innumerable hoppers will 
be killed. After the hoppers are all killed, this trap-strip should 
be cut and burned, to eliminate the danger of feeding to domestic 
animals. 
There is one objection to the use of the spray method, and 
that is that it is rather hard to make the spray material adhere and 
spread on plants sprayed. This, however, can be partly overcome 
by adding about 3 pounds of common laundry soap to 100 gallons 
of the spray. 
Arsenic-bran Mash .—This can be used effectively, and it is one 
of the very best methods for controlling a grasshopper plague. 
Mix thoroly, 25 pounds of bran with 1 pound of white arsenic or 
Paris green, and enough water to moisten it so that the mixture 
will adhere. About 3 gallons of ivater will be sufficient. Add 2 
quarts of some common cheap syrup to keep the bran from drying- 
out too readily and make it more attractive to the hoppers. 
The above quanity of materials, properly strewn, is sufficient 
to sow around 5 or 6 acres and will completely cover 3 acres. This 
would cost about 30 cents per acre, figuring the cost of materials 
as they were the past season. 
The poison should be sown broadcast where the hoppers are 
the most abundant. Avoid dropping it in piles, as more hoppers 
are reached and better results are obtained where the particles 
are as small as possible. This mixture should be used with care 
where domestic fowls are apt to feed, as there is danger of poison¬ 
ing them. However, Dr. Morrill* reports that chickens will not 
eat this poison mash and that there is no danger to poultry when 
it is scattered broadcast. His report is as follows: 
“Experimentation has shown that there is no danger to poultry from 
eating the bran mash if it is scattered broadcast. The writer has seen no 
dead wild birds over ground that was treated. One season a pan of the 
prepared bran mash was exposed where chickens could get it if they 
♦“Grasshopper Control,” N. Mex. College of Agriculture and Exp. Sta. Bui. No. 102, 
1916, pp. 29-30. 
