- 472 - 



holding larvae below economic levels. (McQueen). MISSISSIPPI - In delta counties, 

 eggs in 8 and larvae in 5 of 30 fields. Maximum per 100 terminals, 1.5 eggs and 

 1 larva. Injured squares averaged 2.23 percent in 8 of 11 fields. (Pfrimmer et 

 al.). LOUISIANA - In Madison Parish, Heliothis spp. eggs ranged 26-156 per acre 

 in 6 of 14 fields. (Cleveland et al.) . ARKANSAS - In areas surveyed 640 fields 

 infested. No problems in any area. (Boyer et al.). Moths on sugarlines (standard- 

 ized at 0.5 mile of row for each crop) totaled 217 on corn, sorghum, and soybeans 

 in Lonoke County. (Boyer). TEXAS - In McLennan and Falls Counties, eggs averaged 

 1.8 and larvae 0.4 per 100 terminals in 43 treated fields. Eggs averaged 0.8 and 

 larvae 0.6 in 10 untreated fields. Injured squares averaged 1.6 (maximum 12.5) 

 percent in 36 treated fields and averaged 1.6 (maximum 3.5) percent in 9 untreated 

 fields. Of 36 larvae collected from cotton 23 identified H. virescens . (Cowan et 

 al.). ARIZONA - One H. zea larvae and 11 eggs reported from 432 fields in Graham 

 County June 14-21. (Ariz. Coop. Sur.). 



TOBACCO 



TOBACCO FLEA BEETLE ( Epitrix hirtipennis ) - KENTUCKY - Caused light damage to 

 tobacco in Boone County. (Barnett) . 



SUGAR BEETS 



BEET WEBWORM ( Loxostege sticticalis ) - NORTH DAKOTA - Moths in most fields in 

 Oliver, Burleigh, Walsh, Pembina, and Grand Forks Counties. In Oliver County, 

 larvae completely defoliated 38-acre field, partially damaged additional 18 acres. 

 Moths ranged up to 5 per square yard in Burleigh and Oliver Counties. Egg masses 

 up to 4 per leaf. (Brandvik et al.). WYOMING - Moth counts decreased in Powell 

 area. Park County, by June 18. (Burkhardt) . Moths light in sugar beet fields of 

 Goshen and Platte Counties, few small larvae present. (Parshall) . 



SUGARBEET ROOT MAGGOT ( Tetanops myopaef ormis ) - WYOMING - Eggs in 7 fields 

 checked in Powell area. Park County, June 18; 30-100 percent of plants had eggs 

 around bases. Larvae found in several fields. Adult activity decreased. 

 (Burkhardt). NORTH DAKOTA - Adults in all fields surveyed in Grand Forks County. 

 Early eggs nonviable and drying up in Walsh and Pembina Counties. No hatch 

 occurred in these counties. (Kaatz) . MINNESOTA - Survey underway in Red River 

 Valley. In Clay County, some adults in most fields in lighter soil areas from 

 south of Moorhead north to county line; ranged trace to 1.4 per square foot. At 

 Robbin in Kittson County, infestation appears to cover oval area 4 miles long by 

 3 miles wide. Heavier soils elsewhere in Kittson County had none or an occasional 

 adult. (Minn. Pest Rpt.). 



SPINACH LEAF MINER ( Pegomyia hyoscyami ) - WYOMING - Percent of plants with eggs 

 ranged 40-100 at Powell, Park County, June 18. (Burkhardt). Larvae infested 0-30 

 percent of leaves per plant in Platte and Goshen Counties. (Parshall). 



MISCELLANEOUS FIELD CROPS 



SUNFLOWER MOTH ( Homoeosoma electellum ) - TEXAS - Remains light to moderate in 

 Reeves County. Moderate in El Paso County. (Neeb) . 



HOP APHID (Phorodon humuli ) - WASHINGTON - General buildup of nymphs and adults 

 in hop yards near Grandview, Yakima County. (Cone) . 



POTATOES, TOMATOES, PEPPERS 



COLORADO POTATO BEETLE ( Leptinotarsa decemlineata ) - MAINE - Eggs and some larvae 

 on potatoes in Lincoln area of Penobscot County. Infesting several fields of 

 table stock potatoes at Showhegan, Somerset County; 1 adult and 20 larvae per 20 

 plants. (Gall). COLORADO - Larvae ranged 80-85 per 100 sweeps in potatoes in 

 La Salle area of Weld County. (Urano) . 



