Etiology and Control of Seedling Blight ofBrassaia actinophyllaCaused byPythium splendensin Hawaii
- 1 January 1983
- journal article
- research article
- Published by Scientific Societies in Plant Disease
- Vol. 67 (4) , 396-398
- https://doi.org/10.1094/pd-67-396
Abstract
P. splendens was consistently associated with grayish water-soaked lesions on seedling hypocotyls of B. actinophylla. Six isolates of P. splendens from brassaia and single isolates from schefflera, anthurium and papaya caused preemergence and postemergence damping-off of brassaia seedlings. Chlorotic leaves and reduced growth rates were symptoms of both root rot and stem canker on inoculated 4-mo.-old plants. Metalyxyl at 25 ppm a.i. [active ingredient]and etridiazole at 500 ppm a.i. were effective in controlling the disease. Metalaxyl at 500 ppm a.i. and etridiazole at 1000 ppm a.i. or higher were phytotoxic.Keywords
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