Chemical Controls for Turfgrass Diseases

Algal scum

  • chlorothalonil
  • mancozeb
  • quartenary ammonium compounds

Anthracnose

  • azoxystrobin
  • chlorothalonil
  • propiconazole
  • pyraclostrobin
  • thiophanate-methyl
  • thiophanate-methyl + mancozeb
  • triadimefon

Brown patch

  • azoxystrobin
  • captan
  • chloroneb
  • chloroneb + thiophanate-methyl
  • chlorothalonil
  • chlorothalonil + fenarimol
  • cyproconazole
  • fenarimol
  • flutolanil
  • iprodione
  • mancozeb
  • maneb
  • myclobutanil
  • PCNB
  • propiconazole
  • pyraclostrobin
  • thiophanate-methyl
  • thiophanate-methyl + iprodione
  • thiophanate-methyl + mancozeb
  • vinclozolin

Bipolaris, Dreschlera, Exserohilum, Curvularia (Helminthosporium Diseases, Melting Out, Leaf Spots)

Curvularia leaf spot

  • chlorothalonil

Helminthosporium leaf spot and melting out

  • azoxystrobin
  • chlorothalonil
  • iprodione
  • mancozeb
  • myclobutanil
  • propiconazole
  • PCNB
  • pyraclostrobin
  • thiophanate-methyl
  • vinclozolin

Leaf spot

  • mancozeb
  • myclobutanil

Dollar spot

  • boscalid
  • chloroneb + thiophanate-methyl
  • chlorothalonil
  • chlorothalonil + fenarimol
  • iprodione
  • mancozeb
  • maneb
  • myclobutanil
  • PCNB
  • thiophanate-methyl
  • thiophanate-methyl + iprodione
  • thiophanate-methyl + mancozeb
  • triadimefon
  • triadimefon + thiram
  • vinclozolin

Downy mildew, Yellow tuft

  • fosetyl-Al
  • mancozeb + metalaxyl
  • metalaxyl

Fairy rings

  • azoxystrobin
  • flutolanil

Gray leaf spot

  • azoxystrobin
  • chlorothalonil
  • chlorothalonil + fenarimol
  • thiophanate-methyl + mancozeb
  • propiconazole
  • pyraclostrobin

Necrotic ring spot

  • azoxystrobin
  • iprodione
  • myclobutanil
  • thiophanate-methyl

Pink snow mold (Fusarium, Microdochium)

  • chloroneb + thiophanate-methyl
  • chlorothalonil
  • iprodione
  • mancozeb
  • PCNB
  • propiconazole
  • thiophanate-methyl
  • thiophanate-methyl + mancozeb
  • triadimefon
  • vinclozolin

Powdery mildew

  • azoxystrobin
  • myclobutanil
  • propiconazole
  • pyraclostrobin
  • triadimefon

Pythium diseases–blight (cottony blight), damping off, root & crown rot, grease spot

Pythium blight

  • azoxystrobin
  • chloroneb
  • chloroneb + thiophanate-methyl
  • etridiazole
  • fosetyl-Al
  • mancozeb
  • mancozeb + metalaxyl
  • propamocarb
  • pyraclostrobin

Pythium blight and damping-off

  • etridiazole
  • metalaxyl
  • triadimefon + metalaxyl

Pythium damping-off (seed treatment)

  • metalaxyl

Rust

  • chlorothalonil
  • mancozeb
  • maneb
  • myclobutanil
  • PCNB
  • propiconazole
  • pyraclostrobin
  • thiophanate-methyl + mancozeb
  • triadimefon
  • triadimefon + thiram

Seedling Disease

  • captan

Spring dead spot

  • azoxystrobin
  • myclobutanil

Stripe smut

  • propiconazole
  • thiophanate-methyl
  • triadimefon

Summer patch (Magnaporthe)

  • myclobutanil
  • propiconazole
  • thiophanate-methyl
  • triadimefon

Take all patch

  • azoxystrobin
  • propiconazole
  • pyraclostrobin
  • triadimefon
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