INSECT PEST SURVEY BULLETIN 
Vol. 11 August 1, 1931 No. 6 
OUTSTANDING ENTOMOLOGICAL FEATURES IN THE UNITED STATES FOR JULY, 1931 
The paramount feature of the month is the devastating grasshopper out "break 
in the Great Plains which is said to "be the most serious of any since the early 
settlers were demoralized "by the invasion of the Rocky Mountain locust in the 
decade "between 1868 and 1880. Serious grasshopper outbreaks were quite general- 
ly reported from New York westward to Idaho, Nevada, and Arizona, and southward 
to Arkansas, Oklahoma, and Texas. 
The severe outbreak of the variegated cutworm which was reported during 
June in the VJest-Gentral States was followed in July by a similar outbreak of 
this same insect in the North-Central States. 
Late sweet corn on over one thousand acres of land in San Diego and Los 
Angeles Counties, Calif ., was practically ruined by an undetermined climbing cut- 
worm. 
The fall armyworm appeared in destructive numbers in the Everglades of Flor- 
ida and in the Mississippi delta of Louisiana during July. This is two months 
later than it appeared in, destructive numbers in the Gulf Region last year. 
The painted lady butterfly was quite generally reported from New England 
to the Dakotas, the larvae feeding on hollyhock and. burdock. 
The chinch bug seriously damaged corn in southern Illinois, central Mis- 
souri, and southern and central Kansas. It also did some damage to this crop 
in northern Ohio. This insect seems to be building up an abnormal population 
north of the normal chinch- bug belt in South Dakota and Iowa. 
The corn ear worm was more numerous during July in the North-Contral States 
than it has been for several years and in Nebraska is doing more damage during 
this July than any July in the past 30 years. 
An interesting account of the variegated fritillary ( Euotoieta Claudia 
Cram.) doing commercial damage to beans, sweetpotatoes, and melons in Tennessee 
was reported in late June. 
Correction: Outstanding Features, July 1 Bulletin, page 242, last -paragraph un- 
der Mexican £ruit worm. Damage referred to was in April instead of June as 
might be inferred. See same number of the Bulletin page 315. 
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