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A LEAF BEETLE ( Colaspis spp,) 
Iowa* C, J, Drake (August 18); Herv^^ adult populations reported from the 
northea,stern and southea.stern parts of the State, In the area hetwoen 
these two sections the adult population was reported as much lighter, 
Kno\im larval dajnage to corn during the spring was reported from Black 
Hawk, Poweshiek, lo’.'ira, and Keokuk Counties, 
COMiOII RED SPID'^H ( Tetra^nychus telarius L.) 
Oregon, H, E, Morrison (Septenhor 15)i Severely attacked a 20-acrc field 
of hybrid field corn and sweet corn at CorvaAlis, Danage not great, 
as attack was late. Undersides of the leaves appeared pink because of 
abundance of spiders, and it vra.s estimated that there were 10,000 to 
the lea,f, 
^ALPA 
ALEALEA WEEYIL ( Hypera postica G^^ll,) 
California, A, E. Michelbacher (September 23); Very scarce on September 22, 
although in 1 field in the Spja Joaquin Ualley 2 o.dults and 6 larvae v/erc 
collected per 100 sx'reeps of the net, 
PEA APHID ( Macrosiphun pisi Kltb,) 
Uteh. G-, E, Knowlton (September 19)j Beginning to increase in abundance in 
some alfalfa fields in northern Utah, after a generally low population 
during August, 
A PLAITT BUG ( Lygus elisus Van D,). 
Utrh, G, E, Knowlton (September I7); Abundant in alfalfa at Riverton, 
ALEALEA CATERPILLAR ( Colias eurytheme Bdv, ) 
California, A, E, Michelbacher (September 23); Cpjasing very little damage 
to alfalfa in the northwestern portion of the San Joaquin Valley on 
September 12, In every field Apanteles f laviconchae Riley and in 
some places Apanteles in connection v;ith a wilt disease were holding 
the pest in check. On September 22 nearly all of the larvae were 
parasitized by Apanteles , In most fields 96 ]percent or more of the 
larvae were parasitized. So complete v/as pa-rasitization that seldom 
could a large larva be found, 
A TvElBWORii ( Tctralopha S]o,) 
Virginia, C, Heinrich (September I5); Cacoecia obsoletana Ualk, is causing 
some injury in Northumberland and Lancaster Counties, Additional in- 
jury by a webworm of the genus TetraAoplm and a soil-infesting Acrolo— 
phus . On September 5 it was found that a disea.se had killed most of 
the Tctralopha larvae, and Lespedeza serecia plants were putting out 
now foliage, 
LIBRARY! 
A’lfS 
