. Cooperative economic insect report. Insect pests Control United States Periodicals. Numbers = Moths trapped Larval infestations * Three traps at Tallulah, La. \J CORN EARWORM (Heliothis zea) - KANSAS - Twenty to 40 percent of corn plants show whorl feeding in south central area. Moths and eggs in all fields examined. (Matthew). OKLAHOMA - Corn plants showing whorl and/or tassel damage: Hughes County 44 percent, Bryan 44 percent; Pittsburg 12 percent. (Coppock). TEXAS - Heavy widespread populations on field corn in Denton County. (Chada). SOUTH CAROLINA - Serious damage in Horry, Sumter and A
. Cooperative economic insect report. Insect pests Control United States Periodicals. Numbers = Moths trapped Larval infestations * Three traps at Tallulah, La. \J CORN EARWORM (Heliothis zea) - KANSAS - Twenty to 40 percent of corn plants show whorl feeding in south central area. Moths and eggs in all fields examined. (Matthew). OKLAHOMA - Corn plants showing whorl and/or tassel damage: Hughes County 44 percent, Bryan 44 percent; Pittsburg 12 percent. (Coppock). TEXAS - Heavy widespread populations on field corn in Denton County. (Chada). SOUTH CAROLINA - Serious damage in Horry, Sumter and Anderson Counties. (Nettles et al. ). ALA- BAMA - Heavy damage in whorls of early corn in northern area. ("Eden). PEA APHID (Macrosiphum pisi) - WASHINGTON - Nymphs increasing on alfalfa in Grant and Yakima Counties. (Brannon, Kamal). COLORADO - Alfalfa and peas in northern area still carrying very high populations. Damage to first-cutting alfalfa apparent in Larimer, Boulder and Weld Counties. (Exp. Sta.). NEBRASKA - Increasing in southeastern area, 90-125 per sweep on alfalfa. (Andersen). ILLINOIS - Found on new growth of alfalfa but infestation subsiding rapidly. (111. Ins. Rept. ). CONNECTICUT - Ten to 15 per sweep on alfalfa in Tolland and Windham Counties June 7. (Tunis). DELAWARE - Moderately abundant on alfalfa. (Milliron). PENNSYLVANIA - Moderate in most alfalfa fields but-para- sitism heavy. (Udine). YELLOW CLOVER APHID (Pterocallidium trifolii) - NEBRASKA - In- creasing on red clover in southeast area, 20-25 per 10 sweeps. (Ander- sen). SWEETCLOVER APHID (Myzocallidium riehmi) - MINNESOTA - Severe infestation of seedling sweetclover in Red River Valley. Eighty percent of plants infested June 13. (Minn. Ins. Rept. ). POTATO LEAFHOPPER (Empoasca fabae) - OKLAHOMA - Increased to 223 nymphs and adults per 100 sweeps in Payne County alfalfa compared with 60 last week. (Fenton). DELAWARE - Increased on alfalfa in some areas, but not abundant enough to cause perceptible
Size: 1882px × 1327px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity