**Acknowledgements**

This study was financed in part by the Sarawak State Government under the Ministry of Natural Resources and Urban Development (Rancangan Malaysia Ke-11) under the project titled 'Centre of Excellence for Planted Forest'. We acknowledge the support received from Datu Hamden Bin Haji Mohammad, Director of Forest Sarawak, and as well the assistance rendered by members of the Forest Health Unit (Erica Hadari, Lily Encharang, Jonnidi Suib and Jaies Chankul) throughout this study, and especially, the surveys and collection of diseased samples are highly appreciated.
