INSECT PEST SURVEY BULLETIN^ 
V<T/ 
Vol. 13 August 1, 1933 No. 6 
. .THE MORE IMPORTANT RECORDS FOR JULY, 1933 
In addition to reports of generally severe grasshopper infestation occur- 
ring in the Great Plains we have reports of very heavy infestation in the upper 
and lower peninsulas of Michigan, the northeastern one third of Wisconsin and 
two outbreaks in California, one in the Imperial Valley and the other in the 
San Francisco Bay district. The infestation in the Mississippi Delta continued 
severe during July and several carloads of bait were distributed in that dis- 
trict. In northeastern Nebraska 18 carloads were used. We -do not have defi- 
nite figures for the quantity of bait used in the Dakotas and Minnesota where 
the heaviest control campaign is under way. 
Serious_ chinch- bug outbreaks arc under way in eastern Kansas, northern 
Missouri, southern Iowa, central Illinois and Indiana, southern Michigan, and 
western Ohio. In Illinois and Ohio infestations are reported as more severe 
than they have been in years. 
The green June beetle is unusually prevalent this year in Ohio, Missouri, 
and Tennessee. 
Very heavy infestations of the Colorado potato beetle- are reoorted from 
New England, Wisconsin, Minnesota, North Dakota, eastern Tennessee, and east- 
ern Wyoming. In the West these beetles are decidedly more numerous than they 
have been before in the Yakima Valley of Washington and an infestation cover- 
ing a few square miles near the Weber- Davis County line has been discovered in 
northern Utah. 
Very heavy infestations of the potato leafhopper with the resulting hop- 
per-burn injuryaie reported from the Middle Atlantic States from Connecticut 
to Virginia and westward to Iowa and Minnesota. 
The potato tuber worm has been found in a number of potato fields in 
central Iowa. This is the first record we have for the State of Iowa and the 
first record of its being established in potatoes in the Central States. 
The Mexican bean beetle was found far to the northwest of its known dis- 
tribution in the St. Paul - Minneapolis district of Minnesota. This is be- 
lieved to be a commercial jump and extermination is being attempted. 
The gladiolus thrips was reported for the first time during July in eas- 
tern Iowa and Delaware. 
-187- LIBRARY 
STATE PLANT BOARE 
