Plant Diagnostic Clinic
573-882-3019
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
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
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
Updated
3/31/05
