Vol. 4, No, 10 
Page 5 
7• Wildlife-Insecticide Relationships 
R, W, Lutz 
The Plant Pest Control Branch of the U, S, Department of Agriculture and the 
Division of Plant Industry of the Illinois Department of Agriculture are planning 
to treat approximately 12,000 acres south of Sheldon with 2 lbs. per acre of 
aldrin during early November. Questionnaires designed to provide information on 
mortality were distributed to the 56 farmsteads on this area. 
Fifty-six farmyards on each of the Donovan and Iroquois areas, treated with 
2 lbs. per acre of aldrin during the spring of 1960 and 1961, were checked for 
mole activity during October. An equal number of farmyards were checked on the 
untreated Beaverville and South Sheldon areas. The data (Table 5) suggest mole 
populations were reduced on treated areas. 
Table 5. —Mole occurrence on 112 treated and 112 untreated farmyards during 
October, 1961. 
Treated 
Untreated 
Iroquois Donovan 
Beaverville South Sheldon 
I.lole Occurrence 
(Per Cent) 
42.9 
30.0 
89.3 
73.7 
