. Cooperative economic insect report. Insect pests Control United States Periodicals. - 978 - Corn Insect Survey in Iowa, Fall 1959 - The percentage of corn ears damaged by corn earworm and corn rootworms during the fall of 1959 averaged and , respectively. The above line figures in the districts on the map below are the percentages of corn earworm damage and those figures below the line represent the percentages of corn rootworm damage. (Harris).. GRASSHOPPERS - NORTH DAKOTA - Data from completed egg survey generally supports that recorded in an adult grasshopper survey. Evidence show
. Cooperative economic insect report. Insect pests Control United States Periodicals. - 978 - Corn Insect Survey in Iowa, Fall 1959 - The percentage of corn ears damaged by corn earworm and corn rootworms during the fall of 1959 averaged and , respectively. The above line figures in the districts on the map below are the percentages of corn earworm damage and those figures below the line represent the percentages of corn rootworm damage. (Harris).. GRASSHOPPERS - NORTH DAKOTA - Data from completed egg survey generally supports that recorded in an adult grasshopper survey. Evidence shows grasshoppers may be potential problem over a wider area in 1960 than was the case in 1959. (N. D. Ins. Rpt.). TEXAS - Several species feeding on heads of second-growth rice in Fort Bend and Wharton Counties. Damage mostly light. (Hawkins). RHODES-GRASS SCALE (Antonina graminis) - CALIFORNIA - Heavy on St. Augustine grass lawns in El Centro, Imperial County. (G. D. Peterson). ALFALFA CATERPILLAR (Colias philodice eurytheme) - MARYLAND - Larvae averaged one per sweep in alfalfa at 2 localities in Montgomery County. (U. Md., Ent. Dept.). OKLAHOMA - Counts averaged , 1 and per sweep in 3 alfalfa fields checked in Choctaw County (Goin) and in one of 2 fields checked in Bryan County (Vinson). UTAH - Present but not numerous in Box Elder and Cache County fields. (Knowlton). GREEN CLOVERWORM (Plathypena scabra) - OKLAHOMA - Averaged , 1 and per sweep in 3 Choctaw County alfalfa fields checked. (Goin). SALT-MARSH CATERPILLAR (Estigmene acrea) - ARIZONA - Infestations along edges of central area alfalfa fields have been reduced by a disease which has hit the larvae heavily. (Ariz. Coop. Sur.). VELVETBEAN CATERPILLAR (Anticarsia gemmatalis) - DELAWARE - Larvae on alfalfa in New Castle and Kent Counties; averaged 5 per 10 sweeps in one Sussex County field. Larvae averaged 4 per 10 sweeps in a late planting of soybeans in Kent County. (Burbutis, Mason). YELLOW-STRIPED AR
Size: 1939px × 1289px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
