. Cooperative economic insect report. Beneficial insects; Insect pests. - 556 - FORAGE LEGUMES. YELLOW CLOVER APHID (Therioaphis trlfolii) - NORTH DAKOTA - All forms present, 1,000 per 100 sweeps, in red clover near Abercrombie, Richland County. (Brandvik). LYGUS BUGS (Lygus spp.) - IDAHO - Averaged 8 per sweep in alfalfa seed field at Gooding, Gooding County. (Koester, Sutherland). NEVADA - Averaged up to 21 per sweep in several alfalfa seed fields in Reese River Valley, Lander County. (Hilbig). Ranged 1-3 adults and nymphs per sweep in Lovelock, Pershing County, alfalfa seed fields. (Martine
. Cooperative economic insect report. Beneficial insects; Insect pests. - 556 - FORAGE LEGUMES. YELLOW CLOVER APHID (Therioaphis trlfolii) - NORTH DAKOTA - All forms present, 1,000 per 100 sweeps, in red clover near Abercrombie, Richland County. (Brandvik). LYGUS BUGS (Lygus spp.) - IDAHO - Averaged 8 per sweep in alfalfa seed field at Gooding, Gooding County. (Koester, Sutherland). NEVADA - Averaged up to 21 per sweep in several alfalfa seed fields in Reese River Valley, Lander County. (Hilbig). Ranged 1-3 adults and nymphs per sweep in Lovelock, Pershing County, alfalfa seed fields. (Martinelli). UTAH - Averaged 3 adults and 4 nymphs per 10 sweeps of alfalfa at Sraithfield, Cache County. (Knowlton). COLORADO - Heavy on alfalfa throughout eastern area. Ranged 50-500 per 100 sweeps in northeastern area. (Johnson, Burchett). ARIZONA - Ranged 120-600 per 100 sweeps of alfalfa in Gila and Yuma Valleys, Yuma County. Averaged 100 adults and 200 nymphs per 100 sweeps on westside of Salt River Valley, Maricopa County. (Ariz. Coop. Sur.). WYOMING - Ranged 6-184 (average 65) per 10 sweeps of alfalfa in Goshen, Niobrara, and Platte Counties. (Burkhardt). MICHIGAN - Moderate, 100-240 per 100 sweeps, in Lenawee and Monroe Counties July 24. (Newman). MASSACHUSETTS - L. lineolaris (tarnished plant bug) averaged 49 adults per 100 sweeps in Hampshire County field July 31. (Miller). ALFALFA PLANT BUG (Adelphocoris lineolatus) - MASSACHUSETTS - Averaged 68 adults and 43 nymphs per 100 sweeps in Hampshire County field July 31. (Miller). CLOVER LEAFHOPPER (Aceratagallia sanguinolenta) - FLORIDA - Nymphs 25 and adults 10 in 100 sweeps of 12-inch alfalfa at Gainesville, Alachua County. (Mead). ALFALFA CATERPILLAR (Colias eurytheme) - ARIZONA - Larvae ranged 50-100 per 100 sweeps of alfalfa in 5 fields on westside of Salt River Valley, Maricopa County. (Ariz. Coop. Sur.). NEW MEXICO - Light on Eddy County alfalfa. (Mathews). ALFALFA WEEVIL (Hypera postica) - WYOMING - Diminished to less t
Size: 3595px × 695px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect
