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activity noted in York, Platte, and Seward Counties (Staples) and in Lincoln 

 County (Campbell). IOWA - Controls needed in several areas on grain sorghum in 

 southern areas. (Iowa Ins. Sur . ) . SOUTH DAKOTA - Infestations on sorghum 

 approaching economic levels in many fields; some spraying underway. (Jones). 



HORNWORMS ( Manduca spp.) - WISCONSIN - Second and third instars noted defoliating 

 tobacco in southern Dane County field in which cutworm damage appeared to be 

 subsiding. Adults of M. quinquemaculata (tomato hornworm) appearing in larger 

 numbers than normal in blacklight traps. (Wis. Ins. Sur.). MICHIGAN - Moth 

 collections heavier than normal as far north as Montcalm County. Growers should 

 remain alert next 3-4 weeks. (Newman). MARYLAND - Larvae infested 2-5 percent of 

 tobacco plants in St. Marys, Charles, Prince Georges, and Calvert Counties. 

 (U. Md., Ent. Dept . ) . VIRGINIA - Appearing in some tomato fields in Westmoreland 

 County. (Ptucha) . 



POTATO LEAFHOPPER ( Empoasca fabae ) - NEW YORK - Building up in central areas, 

 expect trouble on beans. (N.Y. Wkly. Rpt . , July 19). PENNSYLVANIA - Populations 

 variable in alfalfa. Some untreated fields show moderate to severe stunting and 

 yellowing. (Gesell) . MARYLAND - Heavy but spotty in alfalfa throughout central 

 counties. Ranged 0-10 per sweep in most alfalfa in Baltimore, Carroll, Frederick, 

 and Howard Counties. Heaviest counts ranged 30-100 per sweep. Ranged 0-25 per 

 sweep in alfalfa on Eastern Shore in Queen Annes , Kent, Talbot, and Caroline 

 Counties, with no heavy infestations. (U. Md . , Ent. Dept.). VIRGINIA - Nymphs 

 and adults 80-100 per 100 sweeps on soybeans in Westmoreland County. Ranged 

 25-40 per 100 sweeps in Essex and King and Queen Counties. (Allen). Nymphs and 

 adults 75 per sweep in Augusta County field. (Hendrick, July 15). Nymphs averaged 

 20 per 100 sweeps in Rockbridge County. (Allen). OHIO - Adults, 6 per leaf, 

 damaged soybeans in Wayne County. (Flessel) . WISCONSIN - Nymphs common on Norway 

 maple in Kenosha County nurseries July 20. Most larger nurseries treating for 

 this insect regularly. Damaging populations scattered, apparently more prevalent 

 in early cut and regrowth to blossom alfalfa. Nymphs ranged 15-30 per sweep and 

 yellowing appearing more slowly than normal. Damage appearing in Kewaunee County. 

 (Wis. Ins. Sur.). MISSOURI - Light on alfalfa in central and southeast areas. 

 Ranged up to 120 per 10 sweeps. (Munson) . 



POTATO PSYLLID ( Paratrioza cockerelli ) - COLORADO - Psyllid yellows damage 

 reported on tomatoes in Weld County. (Rothman) . 



TOBACCO BUDWORM ( Heliothis virescens) - MARYLAND - Immatures continue to cause 

 light damage to tobacco in Anne Arundel, St. Marys, Charles, and Prince Georges 

 Counties. Infested plants ranged 2-6 per 50 plants surveyed. (U. Md., Ent. Dept.). 

 TENNESSEE - Very light on tobacco in Robertson and Sumner Counties. Most larvae 

 sick and dying. Damage to date very light. (Gordon). 



TOBACCO HORNWORM (Manduca sexta ) - UTAH - Some damage to tomato foliage at 

 Brigham City, Box Elder County. (Knowlton). KENTUCKY - Light and scattered on 

 tobacco throughout Warren County; larvae averaged 2 per 100 plants at one 

 location. Very light to nonexistant on tobacco in Christian, Logan, Graves, and 

 Todd Counties. (Barnett). NORTH CAROLINA - Larvae noneconomic in most fields 

 statewide. Populations in Columbus County and Bladen County area averaged about 

 3 percent. Less than 1 percent of plants infested in Lenoir and Surry Counties. 

 (Hunt) . 



CORN, SORGHUM, SUGARCANE 



EUROPEAN CORN BORER (Ostrinla nubilalis ) - DELAWARE - Adults averaged 68 per night 

 in blacklight trap at Bridgeville, Sussex County. (Burbutis, Lesiewicz). MARYLAND - 

 Percent infestation ranged 20-100 statewide, heavy infestations found in every 

 county. Moths averaged 10 per night at blacklight stations in Queen Annes and 

 Dorchester Counties. First-brood pupation expected to peak within 10 days in 

 Frederick, Carroll, Baltimore, and Howard Counties. (U. Md., Ent. Dept.). 

 VIRGINIA - Generally lighter than 1970 in Piedmont and Tidewater areas. Infesta- 

 tions of 5-10 percent in Hanover, King and Queen, and Botetourt Counties. 



