How Do You Treat Rusted Cannas?
How Do You Treat Rusted Cannas? During heavy infestations, a rotation with contact and systemic fungicides can be implemented. Contact materials for rust management include mancozeb, chlorothalonil or coppers. Systemic materials include myclobutanil, kresoxim-methyl, triadimefon, triflumizole, azoxystrobin, trifloxystrobin, or pyraclostrobin. How often should I water cannas? Once sprouted, water cannas at least once a week