Reports by William G. Johnson

	Cropping System and Winter Weed Management Effects on Weed Seedbank Dynamics and Soybean Cyst Nematode Population Density.
	Fall and Spring Development of Soybean Cyst Nematode on Winter Annual Weeds in the Eastern Corn Belt.
	Influence of Glyphosate Resistance and Cropping System on Horseweed Seed Persistance.
	Influence of Integrated Weed Management Practices on Glyphosate Resistant Horseweed Population Dynamics.
	Management of Problematic Populations of Common Lambsquarters in Glyphosate-Resistant Soybean in the Eastern Cornbelt: Part I.
	Management of Problematic Populations of Giant Ragweed in Glyphosate-Resistant Soybean in the Eastern Corn Belt: Part II.
	Soybean Cyst Nematode Response to Purple Deadnettle, Annual Rygrass, and Soybean Mixtures.