Wilt disease of angsana (Pterocarpus indicus) in Peninsular Malaysia and its possible control
1999
Philip, E. (Forest Research Institute Malaysia, 52109 Kepong, Kuala Lumpur (Malaysia))
Wilt disease of angsana (Pterocarpus indicius) in Peninsular Malaysia and its possible control. The study was conducted to investigate the cause of death of angsana trees in and around Kuantan, which is located in the east coast of Peninsular Malaysia. Four sites were monitored for a period of 15 months to understand the epidemiology of the disease. Typical symptoms of the disease are yellowing of leaves in the early stages and appearance of bare branches and infestation by pin hole borers at later stages and eventually tree death. Fusarium oxysporium and F. solani were isolated from infected trees but results obtained from the pathogenicity test indicated that F. oxysporium caused death of the trees. Preliminary fungicidal screening was also conducted and initial results suggested that Thiabendazole was effective agains this disease.
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