CHEMICAL CONTROL OF SIAM WEED (<I>CHROMOLAENA ODORATA</I>)
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Abstract
The experiments were conducted to study the efficacy of certain postemergence herbicides on siam weed (Chromolaena odorata) in southern Thailand. The herbicides were treated as foliage applied to siam weed of 1.5-2.0 m in heigh with knapsack speayer in the spray volume of 500 L / h. Vissual assesment was undertaken to evaluate percentage control after application. It was found that both Fluroxypyr (4-amino-3,5-dichloro-6-fluoro-2-pyridyloxyacetic acid) and Triclopyr (3,5,6-trichloro-2-pyridyloxyloxyacetic acid) gave a quite good control of siam weed. Fluroxypyr showed faster and better effect on siam weed than Triclopyr. The optimum rate of Fluroxypyr for acceptable siam weed control was 175-200 g (ae) / ha. Triclopyr was found to be effective when applied at the rate of 300-350 g (ae) / ha.
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References
Baba, A.B. and Ali, S.M. (1985). Fluroxypyr, picloram, triclopyr and chlopyralid for broadleaf weed control in Malaysia plantation. Proc. 10 th Asian-Pacific Weed Sci. Soc. Conf., 2: 601-607.
Webb, K.R. and Feez, A.M. (1987). Control of broadleaf weeds with fluroxypyr in sugarcane and grain sorghum in northern new south wales and queensland, Australia. Proc. 11 th Asian-Pacific weed Sci. Soc. Conf., 1: 211-217.
