1. Production, issues, and prospects of economic fruit trees in Taiwan 2. Current status, varieties, cultivation management, and future of citrus, lychee, longan, and other sapindaceae, mango, anacardiaceae, guava, myrtaceae, wx apple, and other fruit trees.(Diseases of economic fruit trees (I) (II)、Pests affecting economic fruit trees (I) (II)、Marketing of economic fruit trees)