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in some early fields in central counties. Lady beetle adults, larvae, and eggs 

 evident in some heavily infested fields. (Wis. Ins. Sur.). MARYLAND - Few heavy 

 infestations near Romancoke and Old Point areas of Queen Annes County. Ranged 

 80-100 percent infested in 200 acres. Most fields on Eastern Shore negative. 

 (U. Md., Ent. Dept.). WEST VIRGINIA - Caused stunting to one field of sweet corn 

 in Boone County. (W. Va . Ins. Sur.). 



GREENBUG ( Schizaphis graminum ) - IOWA - Heavy parasitism reported from Adams, 

 Ida, and Pottawattamie Counties. Late-planted sorghum and sorghum-sudan 

 critically damaged in Crawford, Page, and Taylor Counties. (Iowa Ins. Sur.). 

 NEBRASKA - Ranged 500-5,000 per plant on heading milo in eastern areas. 

 Parasites developing rapidly in heading fields. Many late-planted forage sorghum 

 fields destroyed. (Roselle) . KANSAS - Populations may increase rapidly soon in 

 western and southern districts, where lady beetles and parasites now light. 

 Parasitic wasps continue to aid in greenbug control in sorghum in northeast and 

 east-central districts. Treating of heavily infested late-planted sorghum 

 reported in Butler County. One field of 4-inch late-planted sorghum in Shawnee 

 County killed after being treated once. (Bell). OKLAHOMA - Heavy on sorghum in 

 Perkins area, Payne County. Controls planned. Scattered fields sprayed in 

 Cimarron County. Light in Beaver and Tillman Counties. (Okla. Coop. Sur.). 

 TEXAS - Infestations light to heavy across northern Panhandle. Light, with 

 localized heavy outbreaks, in Hutchinson, Carson, Castro, Moore, Deaf Smith, and 

 Parmer Counties. Beneficial insects moderate to heavy; parasitized aphids 

 increasing. Greenbug generally light in South Plains compared to previous years. 

 Surveys in South Plains counties show population very spotted; economic in only 

 few fields in each county. Parasite activity continues to increase. Based upon 

 trends noted past 3 years, greenbug should decrease next 10 days. Surveys in 16 

 panhandle counties indicate infestations lighter than usual by mid- July. Counts 

 per plant variable; ranged 0-10 in Oldham County to 0-8,000 in Castro County. 

 Less than 300 per plant on grain sorghum in boot-stage in Coyanosa area of Pecos 

 County. (Neeb et al.). COLORADO - Controls underway on sorghum in northeastern 

 areas. (Pilcher, Hantsbarger) . ARIZONA - Population buildup starting in Avra 

 Valley, Pima County. (Ariz. Coop. Sur.). WASHINGTON - This species and 

 Rhopalosiphum padi in 2 barleyfields near Pullman. All forms except winged 

 adult greenbug noted. Damage to barley heads severe due to frost, aphids, or 

 weed killer. (Retan, Johansen) . 



POTATO LEAFHOPPER (Empoasca fabae ) - VIRGINIA - Population heavier than for past 

 few years in Nansemond County ; growers treating. (Smith). MARYLAND - Ranged up 

 to 50-60 per sweep in alfalfa in Kent County. Averaged 8 per sweep in most fields 

 throughout Eastern Shore. Heaviest in Frederick, Baltimore, Carroll, and Howard 

 Counties; 30-50 per sweep with most fields averaging 15 per sweep. Yellowing of 

 foliage noticeable in heaviest infested alfalfa. (U. Md., Ent. Dept.). VERMONT - 

 Building up on legumes, little evidence of yellows in margins of fields. 

 (Nielsen). WISCONSIN - Some yellowing in scattered alfalfa. Nymphs ranged 10-15 

 per sweep in such fields; 1-5 per sweep in other fields. (Wis. Ins. Sur.). 



SPOTTED ALFALFA APHID ( Therioaphis maculata ) - KANSAS - Ranged 6-20 per 10 

 sweeps in 2 fields in Barber County, and 50 per 10 sweeps in field in Graham 

 County. (Bell). INDIANA - Alatae and apterae 20 per sweep in alfalfa field in 

 Vigo County. Negative in other fields surveyed. (Meyer). WISCONSIN - Some increase 

 noted, especially in new alfalfa seedings. (Wis. Ins. Sur.). 



TOBACCO HORNWORM ( Manduca sexta ) - KENTUCKY - Found 2 larvae in 3-acre tobacco 

 plot in Scott County. (Barnett) . 



TOMATO HORNWORM (Manduca quinquemaculata ) - OHIO - Averaged 1 per 15 plants in 

 Muskingum County. (Andress) . 



