TROPICAL PLANTS COMMONLY SUSCEPTIBLE TO RUST
MANAGEMENT RECOMMENDATION
Puccinia thaliae
Canna
Puccinia horiana, P. chrysanthemi
Chrysanthemum
Cerotelium fici
Fig
Uredo dianellae
Flax lily
Puccinia pelargonii
Geranium
+ R ust diseases can be very hard to control since their spores are very easily spread via wind
Uromyces transversaalis
Gladiolus
Uromyces triquetrus
Hypericum
Phakopsora jatrophicola
currents on asymptomatic cuttings with rainfall and
Jatropha
Puccinia nakanishikii
Lemongrass
splashing irrigation water and they can last for years in the dry state. Do not allow condensation overnight. Do not spray fungicides more than once a week and be sure to rotate FRAC groups.
Puccinia menthae
Mint
Pseudocerradoa paullula
Monstera
Puccinia psidii
Myrtle, guava, eucalyptus
Coleosporium
Plumeria
Phragmidium
Rose
Puccinia antirrhini
Snapdragon
Coleosporium
Solidago
+ Using infected seedlings or cuttings and liners.
Uredo manilensis
Tabernaemontana
Puccinia tillandsiae
Tillandsia
Prospodium appendiculatum
Yellow Elder
FUNGICIDES FOR CONTROLLING RUST DISEASES
Common Name
Tradename
FRAC Group
1
thiophanate methyl
3336, OHP-6672®, T-methyl
3
DMI
Avelyo®, Terraguard®, Torque TM , Tourney®
11
strobilurin
Compass®, Heritage®, Empress® Intrinsic®, Fame®
Reach out to your Harrell’s rep for more information.
3 + 7
DMI + SDHI
Postiva TM
Broadform®, Orkestra® Intrinsic®, Pageant® Intrinsic®, Mural®
7 + 11
strobilurin + SDHI
M03
mancozeb
Mancozeb, Manzate®, Protect TM DF *
M05 + 3
chlorothalonil + DMI
Concert® II **
Follow the product label and rotate between FRAC groups to reduce resistanace development * Mancozeb is best applied preventatively or as a tank mix ** Outdoor use only and avoid drench applications as root damage is possible with chlorothalonil
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