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hemlock poison

http://budurl.com/YouTubeDownloader - Poison hemlock (Conium maculatum) is another poisonous plant that is increasing along roadsides and more common in no-till fields. The lacy leaves lead many to mistake this with Queen Annes Lace, but the leaves of the biennial species are fuller and more toothed. The stem is smooth and hollow with purplish spots or blotches. Other weeds you might find this time of year are dandelion, prickly lettuce, buttercup, speedwells, annual bluegrass, catchweed bedstraw and plantains. Early spring annuals can compete directly with the crop and we recommend farmers take steps to control existing vegetation prior to planting. Selection of a burndown herbicide should be based on a evaluation of the field and growth habit of the particular weeds, Hager says. Fields with dense infestations of aggressive weed species may warrant burndown applications several weeks ahead of planting to reduce the potential for planting delays. Control in early/mid-April is often more consistent than later in the season. Another advantage of early application is a reduction in weed seed production, therefore possibly reducing infestations in subsequent years. http://budurl.com/YouTubeDownloader