Control of bertam (Eugeissona tristis), a forest weed, by chemical means
1987
Mohamad All Haji Hawaii | N. Manokaran
A trial was carried out totest the efficacy of various chemicals in controlling the bertam palm (Eugeissonatristis), considered a weed in the hill forests of Peninsular Malaysia. Tordon 101,Dowpon MS, 2,4,5-T butyl ester, Velpar-L and sodium arsenite were applied to thegrowing points of bertam clumps cut to ground level. With the exception of sodiumarsenite, they were also applied into the soil at the base of uncut clumps. At twoyears after treatment, Tordon 101, 2,4,5-T butyl ester and sodium arsenite showedsatisfactory control of the cut clumps. However, this method of control isdeemed impracticable on a large scale because of the high cost of labour. In the caseof uncut clumps, only Velpar-L showed effective control and is consideredpromising for the control of bertam. However, an unfortunate side-effect ofsoil injection of Velpar-L was that trees in close proximity to the treated clumpseither died or were almost killed. Further investigations are necessary to determineat lower dosages of the chemical to bring about satisfactory control without affectingneighbouring vegetation.
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