Citrus black spot control in Taiwan

Tsai, Y.P.

Proceedings of the International Society of Citriculture I: 344-346


The effectiveness of fungicides and of fungicide-oil mixes against Guignardia citricarpa on ponkan (Citrus reticulata), tankan (C. tankan) and sweet orange (cv. Liu-cheng) was evaluated in 3-year trials. Two sprays of benomyl-oil (Orchex 796) or 2 sprays of mancozeb-oil followed by 2 sprays of benomyl-oil gave good control. Sweet orange was the most susceptible to black spot and tankan the least susceptible.