Systemic Fungicides for Home Use: Effective but Resistance-Prone

Systemic fungicides (myclobutanil, tebuconazole, propiconazole, thiophanate-methyl, triadimefon) move inside plants but fungi develop resistance faster than to contact fungicides (chlorothalonil, copper). Some are foliar sprays, others soil drenches. Long-term, planting disease-resistant varieties and good cultural practices outperform chemical reliance.