New York 
Indiana 
Iowa 
Nebraska 
Nebraska 
-322- 
CEREAL AND FORAGE-CROP INSECTS 
WHEAT 
HESSIAN FLY ( Phytophaga destructor Say) 
C. R. Crosby (August 1): Hessian fly survey for 1930: 
County Number of samples Average per cent 
of infestation 
2.0 
13.0 
8.0 
9i3 
2.7 
2.0 
5.3 
2.5 
3.2 
2.6 
2.7 
5.6 
3.2 
2.4 
Niagara 
28 
Erie 
4 
Cayuga 
12 
Genesee 
12 
Livingston 
40 
Monroe 
20 
Onondaga 
6 
Ontario 
35 
Orleans . 
15 
Seneca 
6 
Tompkins 
3 
Wayne 
17 
Wyoming 
24 
Yates 
10 
Total L'ot 1 
Weighted average 
232 
3.7 
North Dakota 
J. J. Davis (August 19): The Hessian fly is moderately 
abundant in southwestern Indiana. 
H. E. Jaques (August 20): The Hessian fly is moderately 
abundant in Des Moines County; also reported present, but 
scarce, • in the western part of the State. 
M. H. Swenk (July 15-August 15): The month of July was 
extremely hot and dry, and these severe weather conditions had 
a very adverse effect upon the puparia in the wheat stubble 
fields of southeastern Nebraska. Preliminary counts made in 
Case and Clay Counties indicated that only about 20 per cent 
of the fly puparia were still viable the last of July. 
WHEAT STRAW WORM ( Harmolita grandis Riley) 
M. H. Swenk (July 15-August 15): The wheat straw worm 
was quite prevalent in the wheat fields of southern Dundy 
County during July, but no apparent commercial damage resulted 
from the infestation. 
GREEN BUG ( Toxoptera graminun Rond. ) 
H. W. Riddle (August 14): The green bug has caused serious 
