| Table 8. Fungicides for Controlling Common Diseases of Ornamental Plants. | |
|---|---|
| Disease | Chemical for Control |
| Water mold root rots | Etridiazole (Truban, Terrazole) Etridiazole + Thiophanate-methyl (Banrot) Fosetyl-AL (Aliette) Metalaxyl (Subdue) Propamocarb (Banol) |
| Other root- and stem-rotting fungi | Etridiazole+Thiophanate-methyl (Banrot) Iprodione (Chipco 26019) Thiophanate-methyl + Iprodione (Benefit) Quintozene (Terraclor, PCNB) Thiophanate-methyl (Clearys 3336, Domain) Triflumizole (Terraguard) |
| Botrytis blights and spots | Chlorothalonil (Daconil) Fixed copper or Bordeaux mixture (Kocide, Bordo-mix) Iprodione (Chipco 26019) Mancozeb (Dithane) Thiophanate-methyl (Cleary's 3336, Domain) Thiophanate-methyl + Iprodione (Benefit) Vinclozolin (Curalan, Ornalin) |
| Other leaf-spotting and leaf-blighting fungi | Chlorothalonil (Daconil) Fixed copper or Bordeaux mixture (Kocide, Bordo-mix) Iprodione (Chipco 26019) Mancozeb (Dithane) Propiconazole (Banner) Thiophanate-methyl (Cleary's 3336, Domain) Thiophanate-methyl + Mancozeb (Duosan, Zyban) Triadimefon (Bayleton) Triforine (Funginex, Triforine) Vinclozolin (Curalan, Ornalin) |
| Rust | Mancozeb (Dithane) Propiconazole (Banner) Thiophanate-methyl + Mancozeb (Duosan, Zyban) Thiophanate-methyl + Iprodione (Benefit) Triadimefon (Bayleton) Triforine (Funginex, Triforine) |
| Powdery mildews | Antitranspirants (Vapor Gard, Folicote, Wilt Pruf, etc.) Copper sulfate (Phyton 27) Fenarimol (Rubigan) Mancozeb (Dithane) Piperalin (Pipron) Sulfur (Sulfur, Thiolux) Propiconazole (Banner) Thiophanate-methyl (Cleary's 3336, Domain) Thiophanate-methyl + Mancozeb (Duosan, Zyban) Thiophanate-methyl + Iprodione (Benefit) Triadimefon (Bayleton) Triforine (Funginex, Triforine) |
| Bacterial diseases | Copper sulfate (Phyton 27) Fixed copper or Bordeaux mixture (Kocide, Bordo-mix) |
| Please note that all references to specific rates have been removed. Before use for a disease on a specific host plant, users should refer to the product label directions. Please direct questions about these listings to your county office of Ohio State University Extension. | |