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Increase of Alternaria Blight in Two Ornamental Foliage Plant Species Treated with Benomyl. R. A. Atilano, Assistant Professor, University of Florida Agricultural Research and Education Center, Fort Lauderdale 33314. Plant Dis. 67:804-805. Accepted for publication 29 December 1982. Copyright 1983 American Phytopathological Society. DOI: 10.1094/PD-67-804.

Benomyl (0.6 g/L) applied as a soil drench (5.2 L/m2) and again 1 wk later as a foliar spray significantly increased the number of leaf spots in Brassaia actinophylla after inoculation with Alternaria panax. Two foliar sprays 1 wk apart and a benomyl drench alone resulted in similar responses in both B. actinophylla and Schefflera arboricola.

Keyword(s): fungicides, nontarget effects.