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15 feet acetic acid bacteria advisable Agriculture allowed attack banana branches brown cacao cultivation canker cassava catch crop Ceylon Ceylon and Java chupon coco-nuts cocoa coffee colour copra Criollo damage Demonstration Plantation drying economic Erythrina essential Establish the cacao factors fermentation fertility fungal fungus Gazelle Peninsula green manure growing growth Guinea beans Guinea cacao hole inches infection interplanting Java kaffir corn Keravat Kunai labourers land leaf leaves leguminous leguminous shade Leucaena glauca maize Mandated Territory microporus moisture mucilage mycelium native food necessary nursery nutrient Peltophorum period permanent shade pests planter planting distance Plate production pruning Rabaul removed Root Disease rows Samoa seed seedlings selection soil species stakes stem stumps suitable surface temperature temporary shade Territory of Papua Thread Blights tissue tree Trinidad Trinitario Tropical twigs weeding whilst windbreaks writer Xew Guinea yield young cacao