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Oil Palms and Ganoderma II - Infection and Spread
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In an earlier article on the incidence of Ganoderma infection of oil palms in Malaya (Planter, May 1965), high disease levels in postwar plantings were shown to be associated closely with the type of previous stand. Very little loss was recorded as arule in fields which were formerly rubber stands or which had been cleared - from jungle, but frequently following coconuts and sometimes after oil palms disease reached serious proportions. In such cases there was an apparent relationship between infection of the young palms and stumps left in the ground after felling, and buried coconut trunks were also implicated. In older plantings age alone seemed to influence the susceptibility of the palms to infection.
P D TURNER
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Harrisons & Crosfield (Malaysia) Ltd., Oil Palm Research Station, Banting, Selangor
NSTL
