344 IOWA ACADEMY OF SCIENCE Voi,. XXVII, 1920 
at work. It was interesting to note that in a corner of the field, 
the entire heads were being eaten from a small patch of squirrel 
tail grass, Hordeum juhatum, which may be counted as one score 
for the Army worm. 
Fig. 58. Army worms beginning to destroy a hill of corn. 
Later the same day in company with the county agent of Henry 
county a corn field near Salem was visited. There again the 
worms were coming from an adjacent pasture. In this case 
a large percentage of the hills of corn were eaten to the ground 
or the plants were reduced to short stumps. 
A few weeks later representative fields thruout the infested 
areas were visited. The plan of work was to dig for pup«, note 
adults and study the natural enemies with a view to determining 
the probable seriousness of future broods. 
The Variegated cutworm {Peridromia saucia) while having 
a rather wide range of food plants seems to favor the leguminous 
crops and is so destructive to alfalfa as to be aptly termed the 
