TROPICAL PLANTS COMMONLY AFFLICTED BY PYTHIUM DISEASES
MANAGEMENT RECOMMENDATION
Host
Disease
Host
Disease
African violet
Root and stem rot
Leatherleaf fern
Root rot
Aglaonema
Root and stem rot
Peperomia
Root rot
Aloe
Root and stem rot
Philodendron
Root rot
Areca palm
Root rot
Poinsettia
Root rot
+ M onitor irrigation to avoid saturated conditions.
Begonia
Root rot
Pothos
Cutting rot
Caladium
Root and corm rot
Rosemary
Root rot
Thoroughly clean and disinfest pots and avoid reusing potting medium. Get an accurate diagnosis as many root and stem rot diseases can look alike and not all fungicides will be effective against Pythium. + Some cuttings may be infected with Pythium without showing symptoms.
Dieffenbachia
Root rot
Snapdragon
Crown rot
Echeveria
Root and crown rot
Umbrella tree
Damping-off
Fatsia
Root rot
Zebra plant
Root rot
FUNGICIDES FOR CONTROLLING DISEASES OF PYTHIUM
Common Name
Tradename
FRAC Group
mefenoxam
4
Subdue Maxx ®
phosphonates
P07
Aliette ® , TitlePhyte ®
fenamidone
11
FenStop ®
strobilurin
11
Fame ® , Empress ® , Heritage ®
etridiazole
14
Terrazole ® , Truban ®
cyazofamid
21
Cyazo, Segway ® O
fluopicolide
43
Adorn ®
Follow the product label and rotate between FRAC groups to reduce resistanace development
Reach out to your Harrell’s rep for more information.
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