Key Plants And Key Diseases Indoors
Gary W. Moorman, Professor of Plant Pathology
Selecting plants for placement in the interiorscape as well as monitoring them for diseases and planning appropriate disease management strategies can be simplified if the key plants used in the interior are known and if the key pathogens on those plants can be identified. KEY PLANTS are ones that frequently have diseases and should be monitored on a regular basis. In some locations, key plants should not be used if the amount of maintenance work required to assure the site looks well at all times must be minimized. KEY PATHOGENS/DISEASES (in bold) are those that frequently occur on the plants. The other pathogens listed sometimes occur. If conditions at the planting site tend to favor the key diseases, the key plant should not be established there.
| Aglaonema | Epipremnum (Pothos) |
|---|---|
| Colletotrichum | Colletotrichum |
| Pythium | Pythium |
| Erwinia chrysanthemi | Rhizoctonia |
| Pseudomonas cichorii | |
| Pseudomonas cichorii | |
| Begonia | Ficus |
| Botrytis | Cercospora |
| Powdery mildew |
Colletotrichum |
| Pythium | Phomopsis |
| Impatiens necrotic spot virus |
Glomerellla |
| foliar nematode |
|
| Brassaia (Schefflera) |
Pepperomia |
| Alternaria | Cercospora |
| Cercospora | Phytopthora |
| Phytopthora | Pythium |
| virus | |
| Chrysanthemum | Syngonium |
| Aschochyta, Alternaria, or Stemphyllium | Cephalosporium |
| Botrytis | Rhizoctronia |
| Powdery Mildew |
Erwinia chrysanthemi |
| Pythium | Xanthomonas vitians |
| Erwinia chrysanthemi | |
| Psuedomonas chicorii | |
| Cissus (Grape ivy) | Hedera (English ivy) |
| Downy Mildew |
Colletotrichum |
| Powdery Mildew |
Xanthomonas hederae |
| Cyclamen | Philodendron |
| Fusarium wilt |
Phytophthora |
| Impatiens necrotic spot virus |
Pythium |
| Rhizoctonia | |
| Erwinia chrysanthemi | |
| Xanthomonas dieffenbachiae |
|
| Pseudomonas cichorii | |
| Dasheen mosaic virus | |
| Dieffenbachia |
Schlumbergera (Holiday cacti) |
| Phytophthora | Fusarium |
| Erwinia chrysanthemi | Pythium |
| Xanthomonas dieffenbachiae | Impatiens necrotic spot virus |
| Dasheen mosaic virus |
|
| Dracaena | Saintpaulia (Aftican violet) |
| Colletotrichum | Phytophthora |
| Fusarium | Botrytis |
| Phyllosticta | Powdery Mildew |
| Rhizoctonia | |
| Erwinia chrysanthemi | |
| foliar nematode |
DISCLAIMER
Notice: The user of this information assumes all risks for personal injury or property damage.
Warning! Pesticides are poisonous. Read and follow all directions and safety precautions on labels. Handle carefully and store in original labeled containers out of the reach of children, pets, and livestock. Dispose of empty containers right away, in a safe manner and place. Do not contaminate forage, streams or ponds.
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