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Disease Development and Buildup of Resistance to Oxadixyl in Potato Crops Inoculated with Phytophthora infestans as Affected by Oxadixyl and Oxadixyl Mixtures: Experimental and Simulation Studies
Author(s) -
Levy Y.,
Cohen Y.,
Benderly M.
Publication year - 1991
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/j.1439-0434.1991.tb00114.x
Subject(s) - phytophthora infestans , mancozeb , blight , fungicide , biology , inoculation , crop , agronomy , horticulture , disease control , microbiology and biotechnology
Abstract Simulator predictions for the effect of oxadixyl and oxadixyl mixtures on the control of late blight in potato crops inoculated with Phytophthora infestans and the buildup of fungal resistance to oxadixyl were compared with data obtained in field experiments. The simulator, which considered fungus, fungicides and crop variables, predicted accurately the effect of fungicide sprays (oxadixyl, oxadixyl mixed with mancozeb, and oxadixyl mixed with mancozeb and cymoxanil) on blight development. The model predicted accurately both resistance buildup and infection in non‐treated crops and in crops treated with oxadixyl alone or in a mixture with mancozeb (SAN 518F), but overestimated the control efficacy of the three‐way mixture Pulsan.