INSECT PEST SURVEY BULLETIN 
Vol. 17 August 1, 1937 No. 6 
THE MORE IMPORTANT RECORDS FOR JULY 
Grasshoppers continued to be the most serious problem of the year. Rather 
heavy migrations were under way over much of. the infested area. In the southern 
part of this area — Nebraska and Colorado — the outbreak was probably as heavy and 
widespread as the outbreaks in the late 70' s. 
A slight outbreak of Mormon crickets occasioned considerable alarm in the' 
Dakotas during the month. In the western part of the range of this insect egg 
laying began the second week of July, 
The Japanese beetle was appearing in unprecedented numbers. Around the 
periphery of the infested area reports of heavy emergence have been received 
from the metropolitan area surrounding New York City, and from Connecticut, 
Rhode Island, DolaSare, and northeastern Maryland. 
The recently introduced weevil Naupactus leucoloma Boh. 'reached its peak 
of emergence the second week of July. In some fields in Florida it was emerging 
at the rate of about 500.000 beetles per acre. The insect was discovered at 
Laurel, Missi, on August 9* 
Another weevil but recently reported from this country, Calomycterus 
setarius Roelofs, again appeared in numbers in parts of Connecticut. 
A heavy outbreak of the variegated cutworm occurred in Wisconsin, Minne- 
sota, Nebraska, and South Dakota. In many places the outbreaks were unprece- 
dented. 
Unusual numbers of the sugar beet webworm were reported from North Dakota 
and the Groat Basin States. 
The white-lined sphinx appeared in startling numbers over a very wide area 
extending from Michigan westward to the Dakotas and Idaho. 
Serious armyworm outbreaks occurred over much of the United States, reports 
having been received from the New England, Middle Atlantic, East Central, West 
Central, and Great Basin States. 
The European corn borer was much more destructive than last year in the 
New England States and New York. 
Codling moth abundance was variable, New Jersey reporting the heaviest 
infestation since 1933 and Delaware the lowest since 1929» In general, in- 
festations appear to be about normal. 
The flatheaded apple tree borer is still destructive ^ver much of the 
area that has suffered severe drought during the last few years. 
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