. Cooperative economic insect report. Beneficial insects; Insect pests. 324 SPOTTED ALFALFA APHID - UTAH - Damaging over much of Washing- ton County, moderate to numerous in Kane County. About 1000 acres of alfalfa sprayed in Washington County. (Knowlton, Hucrhes). NEW MEXICO- Medium to heavy in Rio Grande Valley from Hatch to Albuquerque. Med- ium to heavy also in areas of De Baca, Chaves and Eddy Counties. Heavy infestations in Pecos Valley of Guadalupe and San Miguel Counties. Fall- planted alfalfa severely damaged in areas of Dona Ana, De Baca and Valencia Counties. ( Durkin). TEXAS - Heav
. Cooperative economic insect report. Beneficial insects; Insect pests. 324 SPOTTED ALFALFA APHID - UTAH - Damaging over much of Washing- ton County, moderate to numerous in Kane County. About 1000 acres of alfalfa sprayed in Washington County. (Knowlton, Hucrhes). NEW MEXICO- Medium to heavy in Rio Grande Valley from Hatch to Albuquerque. Med- ium to heavy also in areas of De Baca, Chaves and Eddy Counties. Heavy infestations in Pecos Valley of Guadalupe and San Miguel Counties. Fall- planted alfalfa severely damaged in areas of Dona Ana, De Baca and Valencia Counties. ( Durkin). TEXAS - Heavy widespread on alfalfa in Denton County (Chada) and Grayson County (Owen). Medium to heavy widespread on alfalfa in Kaufman County. (Hawkins). Heavy on alfalfa in Brazos and Burleson Counties. (Randolph). OKLAHOMA - Rains have reduced populations in most fields in northeastern area. Former damage severe in many fields and future damage expected. Many winged forms. (Coppock). KANSAS -Number one insect pest in southeastern alfalfa fields. Many fields threatened by heavy populations up to several hundred per plant. Scattered severe populations in Cowley, Chautauqua, Mont- gomery, Labette and Cherokee Counties where counts range from few to over 3000 per sweep. First evidence of spring migration, numerous winged aphids in heavily infested fields in southern tier of southeastern counties. Few aphids north of second tier of counties in the southeast. Lady beetle larval population higher than last week. Controls applied. (Matthew, Painter). No spotted alfalfa aphid foimd north of Kansas River, northeast Kansas. (Burkhardt). NEBRASKA - No infestation found in Platte Valley area. (Andersen). MISSOURI - Light to heavy infestations in conjunction with pea aphid damaging alfalfa over much of southwest area with heavier numbers confined to extreme southwest counties. Many fields 50 to 95 percent destroyed by counts of 35 to over 500 aphids per sweep. Light numbers of 1 to 5 per sweep scatt
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