| Summary: | The sandalwood seedling has been planted in the nursery of Balitbang Kehutanan NIT to experience the destruction is about 20%, seedling is attacked by damping-off. Biological control has been developed as alternate method against soil born diseases to eliminate damage on the environment. One of the biological agents having high antagonistic potential against soil born pathogen is Trichodenna spp. The direction of experiment to search the cause of lodoh on the sandalwood seedling and the application influences T. reesei on the controllodoh in the sandalwood seedling.
Methods of the experiment was (1) isolation the sandalwood seedling of painful and soil examplefrom NIT, (2) Postulat Koch test on the sandalwood seedling, (3) antagonistic test ofT. reesei in vitro and (4) effectiveness test ofT. reesei against developing patogen in vivo.
The result indicated that lodoh on the sandalwood seedling caused by Fusarium sp. T.
reesei in vitro inhibited Fusarium sp. at average of 100% accordingly. The application ofT. reesei as biological control agent against Fusarium sp. showed high effectivity. The attact percentage of lodoh on sandalwood seedlings showed that the lowest one was growth on compos formulated with T. reesei (5%), whereas seedlings growth on compos without T. reesei, unsteril sands and soil samples from NTTwere 30%,35% and 65%.
Key words: lodoh, sandalwood seedling, Trichoderma reesei
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