- 600 - 



quinquemaculata (tomato hornworm) continue to cause moderate damage in most areas. 

 Controls delayed due to continuous rain, (Gordon). 



POTATO LEAFHOPPER ( Empoasca fabae ) - WISCONSIN - No noticeable increase of nymphs 

 and adults in alfalfa, some individual fields contain heavy numbers. Counts more 

 constant in soybeans, average of about 1 per sweep in southern counties. (Wis. 

 Ins. Sur.). MARYLAND - Moderate to heavy (5-47 per sweep) on alfalfa in southern 

 Frederick County. (U. Md., Ent . Dept.). 



TOMATO HORNWORM (Manduca quinquemaculata ) - NEW MEXICO - Variable in home gardens 

 and commercial tomato fields in Bernalillo County. Light to extensive foliage 

 damage, (Heninger) . MARYLAND - Below economic levels in most tobacco. (U. Md., 

 Ent. Dept.) . 



CORN, SORGHUM, SUGARCANE 



EUROPEAN CORN BORER (Ostrinia nubilalis ) - KANSAS - Most second-generation larvae 

 on corn surveyed in Brown and Doniphan Counties in first to third instars and had 

 not bored into stalks. Most eggs hatched. Larvae primarily feeding on leaves near 

 collar and behind leaf sheaths. In 4 Brown County fields, 30-60 percent of plants 

 infested and larvae averaged 0.2-2.1 per plant. Larvae up to 5 per plant in 

 Leavenworth and Anderson Counties. (Bell). NEBRASKA - Averaged 284 tunnels, 70 

 larvae, 90 pupae, and 7 egg masses per 100 corn plants on August 9 in 10 Dixon 

 County fields. Adults numerous in roadside ditches and grassy field margins. 

 Adult emergence estimated at about 15 percent complete on August 9. (Berogan) . 

 Light second brood activity in 6 fields examined in Sarpy County August 11. 

 Averaged about 1 egg mass per 25 plants. Based on present moth emergence, 

 estimate most optimum times for control of second-brood borers as August 11-17, 

 August 13-20, and August 16-23 in southeast, east, and northeast districts 

 respectively. (Keith). IOWA - Second-brood moth flight peaked at Ames, Story 

 County, on August 7 and at Kanawha, Handcock County^ (60 miles north) on August 8. 

 (Iowa Ins. Sur.). SOUTH DAKOTA - Larvae damaged corn in eastern Custer County. 

 Less than 0.5 percent of stalks damaged. This is a new county record. (Jones, 

 Rieckman) . WISCONSIN - Moth flights increased. Heaviest flights occurred on 

 nights of August 7-9. Egg masses ranged 1-10 per 25 sweet corn plants in Dane 

 and Columbia Counties, treatment planned. Egg hatch expected by August 13 or 14. 

 Few first instar larvae of second generation apparent in silks of early corn 

 near Spring Green in Sauk County, (Wis. Ins. Sur.). 



ILLINOIS - Emergence of second-brood O. nubilalis moths near 90+ percent in 

 northern section. Based on f irst-generation^expect heavy second generation in 

 south-central and western areas. Observations indicate egg laying will be spread 

 over next 2 or 3 weeks in central and northern areas. Egg masses and newly 

 hatched borers still light in southern areas. (Sur. Bui.). MICHIGAN - Collected 

 684 moths at Monroe blacklight station, August 3 and 370 on August 4. Second 

 brood much heavier than anticipated. (Newman). OHIO - Moth flights heavy. On 

 August 9, collected 92 moths from blacklight trap at Wooster, Wayne County. 

 (Rings) . MAINE - Infestations remain very light and sporadic in central area 

 corn. (Gall). NEW JERSEY - Second-generation populations increasing throughout 

 State. (Ins.-Dis. Newsltr.). DELAWARE - Moths averaged 22 per night in light trap 

 at Bridgeville, Sussex County. Infestation of untreated peppers localized, ranged 

 0-21 percent. (Burbutis, Lesiewicz) . MARYLAND - Moths averaged 14 per night in 

 blacklight trap at Hurlock, Dorchester County. Several heavy second-generation 

 infestations on corn in Frederick County. (U. Md., Ent, Dept,). SOUTH CAROLINA - 

 Damaged large acreage of corn at dairy in Richland County. Infestation averaged 

 30 percent. (Nettles). MISSISSIPPI - Infestation moderate in Marshall County. 

 Second-generation larvae present but some pupating. (Robinson). 



FALL ARMYWORM ( Spodoptera frugiperda) - TEXAS - Infestations light to heavy and 

 scattered throughout most South Plains counties. Larvae averaged 4 per 10 plants 

 in Lubbock, Hockley, Cochran, and Bailey Counties. Counts lighter in Parmer, 

 Deaf Smith, Randall, and Hale Counties, Continues to damage grain sorghum by 

 feeding in whorls in Knox, Baylor, and Fisher Counties. Moderate on sorghum in 



