Sweet potatoes Field Crops, (New March 2000) 2 Ipomoea batatas 2 Plant Pests, (New March 2000) 2 Plant pests 2 Root crops 2 Tropical crops 2 Alocasia macrorrhiza 1 Amorphophallus campanulatus 1 Ananas comosus 1 Arachis hypogaea 1 Bananas 1 Camellia sinensis 1 Cassava 1 Cereals 1 Chemical control 1 Citrus 1 Citrus fruits 1 Cocoa 1 Coconuts 1 Cocos nucifera 1 Coffea 1 Coffee 1 Colocasia esculenta 1 Cotton 1 Crop Produce 1 Cyrtosperma 1 Cyrtosperma merkusii 1 Detection 1 Dioscorea 1