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Ostrinia nubi lalis pupation nearly complete in southern half of State. Egg laying 

 • found mo st often in taller corn. Egg masses per 100 plants averaged by district 

 as follows: Southwest 22.5, southeast 6.6, west-central 16, central 5,5. Heaviest 

 counts observed in Redwood and Renville Counties, ranged 144-300 borers per 100 

 plants but only in few widely separated fields. Expect egg masses and borers to 

 increase next 14 days. (Minn. Pest Rpt . ) . IOWA - Moth flights peaked in southern 

 third of State. Infestation 100 percent in western areas, borers 10-30 per plant 

 in some fields. Controls applied. (Iowa Ins. Sur.). MISSOURI - Pupation and 

 second- brood emergence occurring throughout extreme southeast area. (Munson) . 

 ILLINOIS - Threat of first generation about past; only few unhatched eggs found, 

 mostly in northern section. Check of 100+ most advanced fields showed 15 percent 

 of plants infested; ranged 0-55 in individual fields. In most areas, 50-80 per- 

 cent of corn acreage attractive to moths and suitable for good larval survival. 

 (Sur. Bull.). INDIANA - Percent shothole feeding in corn checked by districts: 

 Northwest 0-5 (average 2.3), north-central 0'^36 (average 8.7), northeast 0-23 

 (average 6). Generally first or second instars; occasional midrib feeding 

 observed. Oviposition probably incomplete as adults in many fields. Egg masses 

 more common in northeast district than elsewhere. Only corn suitable for 

 oviposition was examined. (Meyer). OHIO - Moth collections in blacklight traps 

 increased slightly over last reporting period. (Blair). 



WISCONSIN - O. nubilalis moth flights still heavy. First and second instars in 

 scattered fields in southern counties and as far north as Jackson County. Eggs 

 dominant, 4-8 masses per 50 plants in some fields. Potential high for serious 

 infestations On earliest sweet corn. (Wis. Ins. Sur.). MICHIGAN - First-brood 

 moth emergence peaked June 12-14 in Lenawee County; smaller peak occurred June 

 19-20. Larvae feeding on corn, also found on snap beans, peppers, and potatoes. 

 Larval activity should have peaked by June 22-24. First brood appeared heavier 

 than average for past 5 years. (Sauer) . DELAWARE - Adults averaged 3 per night 

 in Sussex County in blacklight traps. Larvae averaged 260 per 100 plants in early 

 planted, untreated sweet corn in one area of county. (Burburis, Lesiewicz) . 

 MARYLAND - Damage levels increasing rapidly on Eastern Shore. Heaviest damage 

 ranged 20-40 percent in about 10 percent of acreage in Dorchester, Wicomico, 

 Worcester, and Somerset Counties. Most fields on Eastern Shore east of Cecil 

 County averaged less than 10 percent damage with first through third instars 

 present. Corn in Montgomery, Frederick, Washington, Carroll, Harford, and 

 Baltimore Counties ranged less than 5 percent damage with first instars present. 

 Egg laying continues Statewide. (U. Md . , Ent . Dept.). KENTUCKY - Larvae infested 

 5 percent of corn in Fayette County field. (Barnett) . ALABAMA - Late instars 

 heavy in 50-75 percent of cornstalks in 25-acre field of pretassel to tasseling 

 corn in Chilton County. F*upation occurred June 19. Moth flights for second 

 generation should be occurring in central and northern areas, (Barnett et al.), 



SOUTHWESTERN CORN BORER (Diatraea grandiosella ) - MISSOURI - Pupation of first 

 generation underway in southeast area. No emergence noted, (Munson), 



STALK BORER ( Papaipema nebris ) - MARYLAND - Third instars continue to infest no- 

 till corn in Frederick, Howard, Carroll, and Montgomery Counties, (U, Md., Ent, 

 Dept.). OHIO - Damaging field corn in Madison County. (Blair). 



WESTERN CORN ROOTWORM ( Diabrotica virgifera ) - MISSOURI - Larval infestations 

 caused severe lodging of corn in Barton County. All stages present, (Fairchild) , 



SORGHUM MIDGE ( Contarinia sorghicola ) - TEXAS - Populations reported from late 

 plantings of grain sorghum in Goliad County. Generally light in central areas 

 from Brazos, Robertson, and Burleson Counties. One heavy, but localized, infes'ta- 

 tion detected in isolated field of grain sorghum near Hearne, Robertson County. 

 (Cole et al.). ARKANSAS - Light in 5 of 13 sorghum fields in bloom in Hempstead, 

 Lafayette, Little River, and Miller Counties. Heaviest counts 3-4 per head in one 

 field in which 10 percent of heads blooming. Few fields in east-central area with 

 1-2 per head. (Boyer) . 



