- 616 - 



County field with 50 percent lodging. In Goodhue County field, D. longicornis 66 

 and D. virgifera 3 on 10 plants with 30 percent lodging. (Minn. Pest Rpt.) . 



SORGHUM WEBWORM (Celama sorghiella ) - ALABAMA - During period ending August 13, 

 surveys indicated larvae heavy, 1-4 per grain head in sorghum in large Coffee 

 County field. Some controls needed. (Cassady et al.). This period larvae ranged 

 1-10 in grain sorghum heads on several thousand acres throughout Houston, Henry, 

 Geneva, Covington, Crenshaw, Coffee, and other counties. All ages present in 

 mixed populations with Heliothis zea (corn earworm) . Control efforts general. 

 (McQueen). KENTUCKY - C. sorghiella larvae ranged 3-4 per grain sorghum head in 

 fields in Todd County. Controls applied. (Barnett) . 



LESSER CORNSTALK BORER (Elasmopalpus lignosellus ) - ALABAMA - Larvae completely 

 destroyed acre of 10 acre grain sorghum field and damaged noted throughout field 

 at Hodgesville in Houston County. (Stephenson et al.). 



SOUTHWESTERN CORN BORER ( Diatraea grandiosella ) - MARYLAND - Larval infestations 

 ranged light to heavy on corn in Marion and Fayette Counties. One 3 acre field 

 of corn in Fayette County, 25 to 30 percent stalk infestation. Larvae attacking 

 40 to 50 percent stalks and ears in 18-acre field at Guin in Marion County. 

 (Pigott). 



SORGHUM MIDGE (Contarinia sorghicola) - MISSISSIPPI - Infesting sorghum for grain 

 or ensilage throughout State. Sorghum planted late and that still in bloom should 

 be watched closely. (Robinson). 



BANKS GRASS MITE ( Oligonychus pratensis ) - WYOMING - Corn plants ranged 0-30 

 percent infested in 6 Park County fields. Heavy, damage severe to lower 4-8 

 leaves and in some cases 10-12 leaves near Thermopolis, Hot Springs County. 

 (Burkhardt) . COLORADO - Light to heavy throughout Arkansas Valley corn. Most 

 damage in Otero County. (Schweissing) . OKLAHOMA - Continues to build up in 

 scattered cornfields in panhandle counties. (Okla. Coop. Sur.). TEXAS - Heavy 

 in El Paso County on grain sorghum. Plants in heavily infested fields show 0.75 

 of total leaves completely dessicated. Light in Dell City area of Hedspeth 

 County on grain sorghum. Light in Pecos and Reeves Counties. Several grain sorghum 

 fields in Dallam County show light to moderate infestations. Cool, damp weather 

 helped to keep mites below economic level. Mite populations in the South Plains 

 near Lubbock, decreased greatly during cool, wet weather. (Neeb et al.). 



SPIDER MITES - UTAH - Populations of Tetranychus urticae (twospotted spider mite) 

 and Oligonychus pratensis (Banks grass mite) caused moderate to severe discolora- 

 tion and drying of corn foliage in Washington County (Huber) , also in portions of 

 Sanpete, Sevier, Emery, Utah, Salt Lake, and Kane Counties (Knowlton) ; field corn 

 being aerially treated. (Home) . 



TURF, PASTURES, RANGELAND 



A LEAFHOPPER ( Euscelis ohausi (Wagner)) - OREGON - Collected fourth and fifth 

 instar nymphs on Scotch broom (Cytisus scoparius ) on June 28, 1970, near Corvallis, 

 Benton County, by P. Oman. Determined by P. Oman. This is a new North American 

 record. Distribution Europe. (Oman). 



A TREEHOPPER (Gargara genitsae ) - OREGON - Collected adults on Scotch broom 

 (Cytisus scoparius ) on July 27, 1970 near Corvallis, Benton County, by P. Oman. 

 Determined by P. Oman. This is a new State record. (Oman). Recorded from 

 Washington, Connecticut, New Jersey, Italy, Spain, Austria, Germany, France, and 

 England. (PPD) . 



CHINCH BUGS ( Blissus spp.) - MAINE - B. leucopterus leucopterus (chinch bug) 

 reported from southern and western areas . Two lawns severely damaged but concern 

 with invasion of homes. (Gall). PENNSYLVANIA - B. leucopterus hirtus and B. 

 leucopterus leucopterus moderate on many lawns, nympns ana aaults caused up to 80 

 percent damage in Centre County. (Gesell) . OHIO - B. leucopterus hirtus (hairy 



