1983 corn rootworm control
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"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). Northern and western corn rootworm larval and adult numbers were even lower in 1982 than the low numbers of 1981. Southern corn rootworm adults showed a much higher increase and comprised 55 percent of the total number of corn rootworm adult beetles at the research plots in northwest Missouri. The potential for economic damage from northern and western species is also confined to the northwestern counties, extending from Buchanan County northeastward to Harrison County. If, in 1983 an early planting is followed by below normal temperatures and above normal rainfall, you can expect some state-wide increase in southern corn rootworm larval damage to seedling roots and underground stalks."--First page.
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This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License.
Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.
Provided for historical documentation only. Check Missouri Extension and Agricultural Experiment Station websites for current information.