Volume 21 August 20, 1971 Number 34 



COOPERATIVE ECONOMIC INSECT REPORT 



HIGHLIGHTS 



Current Conditions 



CORN LEAF APHID heavy on corn in Montana and Wyoming. GREENBUG economic on 

 sorghum in Kansas, (p. 599). 



EUROPEAN CORN BORER second generation heavier than expected in Michigan. Black- 

 light trap collections heavy in Iowa. (pp. 600, 608). 



WESTERN BEAN CUTWORM moth collections heavy in South Dakota. NORTHERN CORN ROOT- 

 WORM adults increasing in New Jersey and Maryland. WESTERN CORN ROOTWORM adults 

 damaged corn in South Dakota. BANKS GRASS MITE heavy on corn in Oklahoma, 

 (p. 601). 



COTTON LEAF PERFORATOR increased on cotton in California. Problem on treated 

 cotton in Arizona. LYGUS BUGS troublesome on cotton in Arizona, (p. 603). 



SUNFLOWER MOTH, SUNFLOWER MAGGOT, and a GALL MIDGE damaged sunflowers in North 

 Dakota, (p. 604). 



Total of 813,654 acres treated for GRASSHOPPER in California, Nevada, Washington, 

 Wyoming, and Idaho, (p. 606). 



GYPSY MOTH defoliation ranged 60-100 percent in eastern Pennsylvania, (p. 606). 

 Detection 



For new county and parish records see page 608. 



Special Reports 



Distribution of Tuber Flea Beetle. Map. (p. 610) 



Reports in this issue are for week ending August 13 unless otherwise indicated. 



- 597 



