TERMITICIDE TRIALS ON YOUNG INFESTED GMELINA ARBOREA TREES IN SEGALIUD-LOKAN, SABAH

Abstract

Five treatments (four chemicals: BHC, Chlordane, Dieldrin, Chlorpyrifos, and a control) were applied to 25 termite-infested Gmelina arborea trees (age: 2.5 years) grown in Segaliud-Lokan, near Sandakan, Sabah. Over a period of four years, both Chlorpyrifos and Chlordane registered no recurrence of termite attack, Dieldrin and BHC had low sporadic recurrence, while the untreated trees gave significantly higher infestation. The main primary pest termite was Coptotermes curvignathus. Tree growth was found to be not directly related to the type of termiticide used.