-367- 
"ndiana 
Illinois 
Colorado 
J. J. Davis (September 22): Adults of the northern corn 
root worm were reported damaging corn at Richmond August 23, 
but we have no specific information regarding the exact 
nature of the injury. 
J. H. Bigger (September 15): The northern corn root worm 
is scarce. It is appearing in smaller numbers than it has 
in at least five years. 
COLORADO CORN ROOT WORM ( Diabrotica virgifera Lee.) 
C. P. Gillette (September 19): The Colorado root v;orm is 
moderately abundant in northern Colorado and very abundant 
in some cases where corn followed corn. 
Louisiana 
SOYBEANS 
VELVET3EAN CATERPILLAR ( Anticarsia gemmatilis Hbn. ) 
•V. E. Hinds (August 29): This insect is now quite abundant 
in the district around New Iberia and Jeanerette and ragging 
of foliage has occurred in some fields. The outbreak is 
generally some two weeks later than that of 1929 and will 
be less severe. Moths and larvae occur in some numbers 
as far north as Baton Rouge, and probably farther than this. 
The soybean crop is being harvested for hay, or turned under, 
very generally regardless of worm occurrence, and in the 
southern section about 80 per cent of the crop is already 
safe from worm injury. I do not anticipate serious damage 
to the crop except in late-planted beans. 
Oklahoma 
C. F. Stiles (September 22): This insect and the corn 
ear worm ( Heliothis obsoleta Fa.b. ) have destroyed the soybean 
seed crop in most districts of Oklahoma. It first attacks 
the small beans and later the leaves. 
ALFALFA AND CLOVER 
PEA APHID ( Illinoia pisi Kalt.) 
V/isconsin J. E. Dudley, Jr. (September 24): Owing largely to 
parasites, predators, and possibly drought, the pea aphid 
practically disappeared from fields lite in August. Largest 
array of natural enemies ever observed, Nab is f erus L. 
being the most prevalent species. During the past 10 days 
infestation has developed until now from 20 to 50 are 
secured in 50 sweeps of a net. Accompanying the rise of the 
aphids, there is a falling off of the number of natural 
enemies taken. 
