Methyl sulfanilylcarbamate (asulam) was effective for the selective control of several grassy weeds in established st. augustinegrass ( Stenotaphrum secundatum (Walt.) Kuntze), ‘Tifway’ bermudagrass ( Cynodon dactylon L.), and ‘Emerald’ zoysiagrass ( Zoysia matrella Merr.). Bahiagrass ( Paspalum notatum Flugge) and centipedegrass ( Eremochloa ophuroides (Munro) Hack.) were severely injured when asulam was used at a rate of 2.24 kg ai/ha. Thirty-six species of ornamental plants were relatively tolerant to foliage applications of asulam at rates of 2.24 and 4.48 kg ai/ha with growth normal on all but 4 ornamental species 22 weeks following treatment.
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Neel et al. (1979) studied this question.
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