Corn rootworm control (1986)

Abstract

"The three species of corn rootworms attacking corn in Missouri are commonly known as northern, southern and western corn rootworms. The northern and southern species are state-wide in their distribution. The western species is known to occur over the northern two-thirds of the state (Jasper to Perry Counties and northward). Western corn rootworm larval and adult numbers were on the increase in 1984 and comprised over 90 percent of the total rootworm population in the entomology research plots in northeast and northwest Missouri. The potential for economic damage from northern and western species is confined to the Missouri counties north of Interstate 70."--First page.