Soil Testing and Plant Diagnostic Services


Fungicides for leaf spot diseases

This is a general listing of active ingredients labeled for use for control of leaf spot diseases on woody ornamentals and trees. Always consult the label to make sure both the host and disease are listed.

Azoxystrobin

  • Tradenames
    Heritage
  • Remarks
    Certain varieties of apple, cherry and crabapples are susceptible to injury by sprays. See label for details.

Bordeaux mixture

  • Tradenames
    Bordeaux Mixture (various manufacturers)
  • Remarks
    Some fungicides containing copper may cause plant injury. Damage is most likely to occur in cool, humid weather.

Captan

  • Tradenames
    Captan

Chlorothalonil

  • Tradenames
    Bravo
    Daconil
    Manicure
    Thalonil
  • Homeowner
    Many trade name including Daconil

Fenarimol

  • Tradenames
    Rubigan
  • Remarks
    Commercial use only

Fixed coppers

  • Tradenames
    Kocide
    Phyton 27
  • Homeowner
    Many trade names
  • Remarks
    Some fungicides containing copper may cause plant injury. Damage is most likely to occur in cool, humid weather.

Iprodione

  • Tradenames
    Chipco 26019
  • Remarks
    Commerical use only

Maneb

  • Tradenames
    Pentathlon
  • Remarks
    Not intended for use on fruit trees by homeowners. Do not use treated plants for food or feed.

Mancozeb

  • Tradenames
    Mancozeb, Dithane, Protect
  • Homeowner
    Many trade names including Mancozeb
  • Not intended for use on fruit trees by homeowners. Do not use treated plants for food or feed.

Mancozeb + copper hydroxide

  • Tradenames
    Junction
  • Remarks
    Not intended for use on fruit trees by homeowners. Do not use treated plants for food or feed.

Myclobutanil

  • Tradenames
    Eagle
    Systhane
  • Homeowner
    Immunox

Propiconizole

  • Tradenames
    Banner Maxx

Quaternary ammonium compounds

  • Tradenames
    Physan 20
    Triathlon
  • Remarks
    For greenhouse and plant propagation areas.

Thiophanate-methy

  • Tradenames
    Cleary's 3336
    Fungo 50
    Homeowner
    GreenLight Systemic Fungicide, Fertilome Halt

Triforine

  • Tradenames
    Funginex

Updated 6/9/09