INSECT PEST S"U R V E Y BULLETIN 
Vol. 19 
June 1, 1939 
No. 4 
THE MOHS IMPORTANT RECORDS EOR MAY 
By the fourth week in May egg hatching of tho migratory grasshopper and the 
two-striped grasshopper was almost completed in the ujrper Great Plains region. 
Complete destruction of some fields of crops had occurred in the western part of 
the Dakotas and Nebraska and in eastern Montana and Wyoming. In the Southern 
Plains region hatching of the migratory range grasshopper also was practically 
complete. East of the Great Plains migratory grasshoppers were advanced to second- 
stage nymphs during tho third week in the month in Michigan, central Wisconsin, and 
in parts of Minnesota and Iowa, and control operations are well under way at sev- 
eral points. In southern Missouri hatching was well advanced during the second 
week of Mav, In the Pacific Northwest the migratory grasshopper and the red- 
legged grasshopper were damaging wheat and alfalfa in Idaho during the first week 
in the month. 
The heaviest infestation by the Mormon cricket ever recorded in South Dakota 
was reported, during the second week in the month in Walworth County, This insect 
was also reported as very abundant in southern Tooele County, Utah, and in several 
counties in Nevada, 
Very heavy flights of June beetles are reported from the East Central States. 
Damage to pecans by these insects is reported from the lower Mississippi Valley. 
Damage by wireworms occurred very widely throughout the country. Heavy 
damage to tomatoes and watermelons by the sugar beet wireworn was reported from 
the San Joaquin Valley in California. 
Very heavy infestation by grubs of Japanese beetle was reported from south- 
eastern New York and northeastern Maryland, 
The first adults of white— fringed beetle were collected in northern Elorida 
on May 22, Larvae have caused serious damage to crops in limited areas this 
season. The first adult was taken in the Now Orleans area on May 11, The first 
pupa of Naupactus, sp. was found at Saucier, Miss., on April 29 and at Gulfport 
.Miss,, on May 1, ’ 
In general, cutworms were subnormal in abundance during the month; however, 
the pale western cxitworm appeared in outbreak numbers in western Kansas, where 
over 10,000 acres of wheat had been destroyed by the first week in May, 
In the East Central States there was a general infestation by hessian flv in 
northern Indiana and northwestern Ohio, 
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