Limitations imposed by disease on oil palm cultivation and yield [esp. fungal diseases]
1982
Turner, P.D.
The major diseases of Elaeis guineensis have caused a wide range of yield and plant losses. Nursery diseases cause loss of planting material and sub-optimal early yield through retarding vegetative development, e.g., blast and Cercospora leaf spot. Severe crown disease is likely to reduce early yield. Leaf mottle, vascular wilt, dry basal rot, basal rot, basal stem rot, Pestalotiopsis attack and Marasmius bunch rot have all limited yield but not restricted planting, mainly because control is straightforward. Both sudden wither and fetal yellowing, diseases of uncertain etiology, have limited plantings in certain areas in South America, whilst this could occur through cadangcadang disease of oil palm in the Philippines. Constraints on yield can often be minimized through agronomic manipulation and chemotheraphy, and there is considerable scope for use of E. oleifera and its hybrids with E. guineensis. Restricting disease spread particularly from Central and South America and Africa to South-east Asia, together with elucidation of the etiology of some serious diseases, continues to be necessary
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