INSECT PEST SURVEY BULLETIN 
Vol. 21 
August 1, 194l 
No. 6 
THE MORE IMPORTANT RECORDS EOR JULY 
In general throughout the West grasshopper infestations are lighter 
than they have hecn for several years. Early in July heavy infestations 
occurred in southeastern Arizona, the dominant species "being Molanoplus 
mcxicanus . It is estimated that a million acres of range and desert lands 
are infested. Similar infestation occurred in west-central Now Mexico, 
hut in these infestations the dominant species is M. differentialis . Dur- 
ing the middle of the month migrations of grasshoppers into grain was re- 
ported from northeastern Colora,do. Oviposition hy grasshoppers was gen- 
eral in western Kansas during the third week in July. I 11 the two western 
tiers of counties in that State damage was decidedly on the increase. 
Heavy infestations of M. hivittatus and M. packar&ii oocurred in scattered 
localities in Utah. Considerable damage hy grasshoppers occurred in the 
central part of South Dakota, and lighter infestations were scattered over 
the southern part of the State. Local infestations occurred throughout 
the Plains States and eastward to Ohio and Kentucky. 
Mormon cricket infestations are reduced and largely localized. The 
most severe infestation is in range land in the tristatc area of Idaho, 
Nevada, and Oregon. Several large hands wore moving from Idaho County 
into Beaverhead County, Mont. Localized infestations are present in 
eastern Sheridan County, Wyo., and similar migrations of these insects 
are also reported from Clark, Bingham, Fremont, Jefferson, and'Madison 
Counties, Idaho. Washington and Oregon also reported migrations under 
way hut reduced to noneconomic importance. 
European earwig is generally abundant in eastern Massachusetts, 
Rhode Island, and southeastern New York. Considerable damage to garden 
crops hy those insects wa,s reported from southwest Washington State. 
Damage to turf hy white grubs and some defoliation of elms and fruit 
trees hy June beetles is reported from southern Maryland and southeastern 
Virginia. 
Japanese beetle was generally abundant and in parts of New England 
and in the northern half of Maryland and on the Eastern Shore of Maryland 
and Virginia and the Norfolk, -Fa., . area was more abundant than last sea- 
son. 
Heavy infestations of alfalfa hy the variegated cutworm are report- 
ed in the Uinta Basin of Utah. 
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