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Disease Control and Pest Management

Induction and Chemical Control of Rot Caused by Ceratocystis paradoxa on Pineapples. J. J. Cho, Research Associate Plant Pathologist, University of Hawaii, Maui Agricultural Research Center, Kula, HI 96790; K. G. Rohrbach(2), and W. J. Apt(3). (2)(3)Associate Plant Pathologist and Plant Pathologist, respectively, Department of Plant Pathology, University of Hawaii, Honolulu, HI 96822. Phytopathology 67:700-703. Accepted for publication 29 November 1976. Copyright © 1977 The American Phytopathological Society, 3340 Pilot Knob Road, St. Paul, MN 55121. All rights reserved.. DOI: 10.1094/Phyto-67-700.

High levels of butt rot of pineapple propagative materials and fruit rot, both incited by the fungus Ceratocystis paradoxa, were induced by artificial inoculation and the infected plant material was used to screen fungicides for efficiency of control. Rot of vegetative propagative materials was controlled by dipping in benomyl, carbendazim (acidified), and thiabendazole. Thiabendazole and carbendazim dips resulted in increased plant weights. Benomyl was superior to thiabendazole in reducing fruit rot, but it reduced plant weights. Sodium-o-phenylphenol was not effective for the control of fruit rot.