Abstract
An account is given of the yard and field trials conducted at Cuttack which showed that ‘Gramoxone’ (20% paraquat) at 0·1 to 0·2 kg/ha. (a.i.) gave complete control ofPistia stratiotes in one to two weeks’ time. The cost of clearance by the weedicide worked out to Rs. 64–93/ha as against Rs. 168–178/ha. for manual clearance. Treatment in instalments is recommended to avoid oxygen depletion due to rotting of treated weed mass and consequent fish mortality.
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Communicated by Dr. B. S. Bhimachar,f.a.sc.
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Patnaik, S. Observations on control ofPistia stratiotes linn. In fish ponds by “Gramoxone”. Proc. Indian Acad. Sci. 75, 15–22 (1972). https://doi.org/10.1007/BF03045330
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DOI: https://doi.org/10.1007/BF03045330