Daconil Fungicide Concentrate

Label in DropBox.

Daconil Action Fungicide Technical Bulletin

Purchased in 2019.

From the Label and other notes and info.

  • Tomatoes – 1 Tbsp/gallon to cover 200 SF or a 10′ x 20′ area. Apply every 7-10 days. PHI = 0. Spray both sides of the leaves.
  • Active Ingredient – Chlorothalonil (CAS No. 1897-45-6) . . . 29.6%
  • For Rose Black Spot use 1.25 fl. oz (2.5 Tbsp) per 4 gallons of water. From the Label page 10.
  • For Hydrangeas use 1.5 fl oz per 4 gallons.
  • Acibenzolar-S-methyl (the active ingredient making up the “Action” in Daconil Action). According to the Fungicide Resistance Committee (FRAC), Acibenzolar-S-methyl belongs to the product category called Host Plant Defense Induction (HPDI) in Group P. This category, which bridges the gap between genetic resistance and conventional disease control, activates the plant’s own defense genes via PR proteins to mimic the natural systemic activated resistance (SAR) response found in most plant species.
  • The label does not mention daylilies or daylily rust. It does cite lilies but not rust.
  • Not labeled for Peppers.
  • Label does not mention the use of a surfactant. But, a Garden Tech Techincal Bulletin says; “The built-in surfactant system in Daconil provides excellent spreading and sticking power for extended coverage on the crown and sheath of grass blades or ornamental plants for unsurpassed protection, even after heavy rains or watering. The surfactant provides residual control for 14 to 21 days when used at recommended rates.”
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