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SMALL GRAINS 



HESSIAN FLY ( Mayetiola destructor ) - PENNSYLVANIA - About 30 percent infestation 

 on wheat stems in Lancaster County. (Tetrault) . 



FORAGE LEGUMES 



ALFALFA WEEVIL (Hypera postica ) - NEVADA - Damaging larval populations in alfalfa 

 seed fields at Orovada, Humboldt County. Subsequent adverse weather conditions, 

 introduction and emergence of pollenators complicated control measures. (Nev. 

 Coop, Rpt.). IDAHO - Populations nearing pupation, damage more severe than in 

 1970 in Twin Falls County. (Sutherland, Youtz) . Larvae severe in numerous 

 untreated alfalfa hayfields at Ada (June 23) and Canyon (June 24) Counties. 

 (Peterson et al.). UTAH - Larvae developed more rapidly since weather became 

 warmer. Stubble spray applied in many areas to protect second crop. (Knowlton) • 

 Damage to first crop lighter than normal in Duchesne and Uintah Counties. 

 (Mathis) . WYOMING - Larvae ranged 28-69 per sweep in 2 alfalfa fields in Powell 

 area, Park County, June 18. (Burkhardt) . Currently, larvae ranged 35-500 per 10 

 sweeps of alfalfa in Laramie, Goshen, Niobrara, Converse, and Platte Counties. 

 Heavy damage in Platte and Converse Counties. About 75 percent of first cutting 

 mowed. (Parshall) . NEBRASKA - Averaged 1.2 adults and 46.3 larvae per 100 sweeps 

 in 24 Dawson County fields. (Manglitz, Stevens). SOUTH DAKOTA - Larvae very heavy 

 in Lawrence and western Meade County alfalfa around northern Black Hills. In 

 untreated fields larval populations of 5,000 per 100 sweeps common. Adults 175- 

 225 per 100 sweeps. Most larvae second and third instar. First cutting of alfalfa 

 well underway; regrowth in harvested fields could bfe held back, particularly in 

 untreated fields. (Jones), NORTH DAKOTA - Larval counts in dryland alfalfa in 

 Oliver County averaged 40 per 100 sweeps. Alfalfa in full bloom. Larvae 1 per 

 100 sweeps in alfalfa north of Bismarck, Burleigh County. This is a new county 

 record. (Brandvik) . WISCONSIN - New adults averaged 50 per sweep in uncut alfalfa 

 in western Dane County field. Larval counts 1-2 per 10 sweeps in uncut dense 

 stands in Sheboygan, Manitowoc, and Calumet Counties. Counts about same in 

 regrowth alfalfa in Grant, Rock, Iowa, Green, and Dane Counties. (Wis. Ins. Sur.), 

 INDIANA - Much of alfalfa in northern districts recently harvested. Larvae 

 ranged up to 3 per sweep in few fields available in northeast district. (Meyer). 



OHIO - H. postica oviposition ceased. Larval populations still heavy for time of 

 year in certain fields. Larvae per sweep by county: Washington less than 1, 

 Wayne 5. New adults found throughout State. (Flessel) . NEW YORK - Populations 

 near or at peak in most areas. Graying noted in many fields. Pupation underway 

 in some areas, (N.Y. Wkly. Rpt., June 21). MASSACHUSETTS - Count per 100 sweeps: 

 Adults 8, larvae 896 in Berkshire County alfalfa. (Miller). 



ALFALFA PLANT BUG ( Adelphocoris lineolatus ) - WYOMING - Adults and nymphs ranged 

 1-6 per 10 sweeps in 5 alfalfa fields in Goshen, Converse, and Platte Counties. 

 (Parshall) . NORTH DAKOTA - Adults and nymphs of this species and Lygus lineolaris 

 (tarnished plant bug) heavy and damaging flower buds on alfalfa in Oliver and 

 Burleigh Counties. Ranged 250-1,000 (averaged 600) per 100 sweeps. Alfalfa will 

 be cut for hay. (Brandvik) , 



MEADOW SPITTLEBUG ( Philaenus spumarius ) - IDAHO - Adults in alfalfa at Meridian, 

 Ada County, and mint at New Plymouth, Payette County. This is a new record for 

 Ada County, (Peterson et al,), 



PEA APHID ( Acyrthosiphon pisum ) - WYOMING - Averaged 2-3 per sweep in 2 alfalfa 

 fields in Powell area. Park County, Counts low, (Burkhardt), Ranged 6-160 per 

 10 sweeps in alfalfa of Laramie, Goshen, Niobrara, Converse, and Platte Counties, 

 (Parshall), UTAH - Moderate in Iron County alfalfa, (Knowlton), 



LEAFMINER FLIES - NEW YORK - Undetermined species caused heavy damage to alfalfa 

 in southeastern area, centered around Dutchess County, Leafminer flies continue 

 more important than alfalfa weevil in these areas, (N,Y, Wkly, Rpt,, June 21). 



