Field Evaluation of Clyphosate, Asulam and Dalapon on African Couch Crass

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Date
1973
Authors
Terry, P.J.
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Abstract
Glyphosate, asulam and dalapon were applied to actively growing Digitaria sealarum in a northern Tanzania coffee plantation. Glyphosate at 2 and 4 kg/ha and at split applications of 1 + 1 and 2 + 2 kg /ha gave very good control of Digitaria sealarum foliage but 1 kg/ha was less effective. Rhizome fresh weights were substantially reduced by all glyphosate treatments. Asulam at 2, 4 and 8 kg/ha gave poor control of Digitaria sealarum. Dalapon at 5 kg /ha gave moderate control which was improved by 0.5 kg/ha paraquat applied 51 days after treatment with dalapon. Prolific growth of annual broad-leafed weeds occurred where Digitaria sealarum had been controlled with glyphosate and dalapon.
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East African Agricultural and Forestry Journal, XXXIX (No. 4), pp. 386-390
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