Abstract
Abstract Seed treatment of maize (Zea mays L.) with the fungicides captan, etridiazole, or thiram (1.5 g/kg seed), or combinations of captan + benodanil, captan + metalaxyl, or benomyl + fenaminosulf (0.75 + 0.75 g/kg) increased numbers of emerged seedlings in a field trial by 37–50%. In a rolled towel test, seedlings were protected from soil-borne pathogens by captan or captafol (0.5 g/kg seed), etridiazole (1.0 g/kg) or thiram (0.5 g/kg). Fusarium oxysporum Schlecht. and Trichoderma koningii Oudem were the pathogenic fungi most commonly isolated from field grown seedlings. Maize seedlings were more susceptible to these fungi when growing at 15°C than at higher temperatures. Isolates differed in their pathogenicity to seedlings, and some isolates of F. oxysporum and an isolate of Thanatephorus cucumeris (Frank) Donk increased seedling growth.
Published Version
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