The Effects of Fungicides onEutypa lataGermination, Growth, and Infection of Grapevines

The fungicides benomyl, fenarimol, flusilazole, iprodione, myclobutanil, triadimefon, and vinclozolin were evaluated for their efficacy in vitro against Eutypa lata. For inhibition of ascospore germination, flusilazole was most effective, with an EC 50 value of 0.06 μg a.i./ml. Fenarimol and myclobutanil were somewhat less effective, with EC 50 values near 1 μg/ml. Benomyl, iprodione, triadimefon, and vinclozolin did not effectively inhibit germination. Flusilazole was also the most effective fungicide for inhibition of mycelial growth (.)