. Cooperative economic insect report. Beneficial insects; Insect pests. 993 - Spotted Alfalfa Aphid as Reported Week Ending 10/12. Heavy or damaging Lighter infestation Increasing New county records SPOTTED ALFALFA APHID' - CALIFORNIA - Infestation found at lone in Amador County. New county record. (Cal. Coop. Rept., Oct. 5). COLORADO - Average per 100 sweeps by county: Sedgwick 200; Weld (Eaton) 150, (Greeley) 200; Morgan (Wiggins) 200; Larimer (Fort Collins) 1. (Exp. Sta.). NEW MEXICO - Moderate to severe damage to seedling stands of alfalfa in Rio Grande and Pecos River Valleys. Infestation
. Cooperative economic insect report. Beneficial insects; Insect pests. 993 - Spotted Alfalfa Aphid as Reported Week Ending 10/12. Heavy or damaging Lighter infestation Increasing New county records SPOTTED ALFALFA APHID' - CALIFORNIA - Infestation found at lone in Amador County. New county record. (Cal. Coop. Rept., Oct. 5). COLORADO - Average per 100 sweeps by county: Sedgwick 200; Weld (Eaton) 150, (Greeley) 200; Morgan (Wiggins) 200; Larimer (Fort Collins) 1. (Exp. Sta.). NEW MEXICO - Moderate to severe damage to seedling stands of alfalfa in Rio Grande and Pecos River Valleys. Infestations on established stands generally light to medium with heavy infestations spotted throughout Dona Ana County. (Durkin, Oct. 5). UTAH - Damagingly abundant in alfalfa as far north as Salt Lake and Davis Counties. Often associated with high populations of pea aphid. (Knowlton). KANSAS - Activity continues v>/ith great range of population intensities over most of State. Survey in 14 southeast counties showed 20 to estimated 800 aphids per sweep, but no honeydew. From 3-17 lady beetles and lacewings per sweep. Spotted alfalfa aphid on fall seedlings vary from light to heavy in Kansas River Valley. Destructive populations in southeast Pottawatomie County. Some alfalfa seedlings in pre-irrigated fields in Cloud County reported destroyed. (Matthew). OKLAHOMA - Increasing in Choctaw County. (Vick). From 135-300 per 10 sweeps in several fields in Logan, Kingfisher and Garfield Counties. (Coppock). TEXAS - Medium infestation in Deaf Smith County. (Clearman). MISSOURI - Damage continues to increase and further increase expected. Some fields involved in nearly all sections of State. (Kyd, Thomas). SOUTH DAKOTA - Still averages over 20 per sweep in southeastern coun- ties. No new areas of infestation. ("Hantsbarger). NEBRASKA - No new areas of infestation found during week. Economic damage still. Please note that these images are extracted from scanned page images that may have been
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