Abstract

Foliar applications of benomyl, chlorothalonil, iprodione, thiram, and triadimefon were assessed for possible nontarget effects on Acremonium loliae, plant-parasitic nematodes, thatch accumulation, and soil pH. Fungicides were applied monthly from April to September during 1983-1987 to field plots of Regal and Fiesta perennial ryegrass (Lolium perenne) and South Dakota, Merion, Sydsport, and Vantage Kentucky bluegrass (Poa pratensis). None of the fungicides significantly affected soil pH and only thiram enhanced thatch significantly when compared with untreated plots. Fungicides did not significantly affect population densities of plant-parasitic nematodes (...)

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