Crop Knowledge Master


Rhizoctonia Primer

General Information



Authors

Andrew K. Gonsalves, Educational Specialist

Stephen A. Ferreira, Extension Plant Pathologist

Department of Plant Pathology, CTAHR

University of Hawaii at Manoa


Pathogens & Hosts

Numerous Rhizoctonia species have been reported to occur in Hawaii on many hosts (Raabe, et al., 1981). The following is a list of the reported pathogens from this genus (Rhizoctonia) and the hosts they infect. The list is organized by the scientific name of the pathogen species (CAPITAL LETTERS), followed by the symptom or disease a given pathogen causes on the listed hosts.

RHIZOCTONIA SP.

Basal Rot:

  • bread vine or black-eyed susan (Abrus precatorius)

Brown Patch:

  • St. Augustine grass (Stenotaphrum secundatum)

Crown and Root Rot:

  • Adenium coetaneum
  • aechmea (Aechmea fasciata)
  • cultivated asparagus (Asparagus officinalis var. altilis)
  • Biserrula pelecinus
  • coriander (Coriandrum sativum)
  • Gardenia sp.
  • hydrangea (Hydrangea macrophylla)
  • Christmas cactus (Schlumbergera bridgesii)
  • spinach (Spinacia oleracea)
  • pathos (Scindapsus aureus)
  • Spathiphyllum sp.
  • stephanotis (Stephanotis floribunda)
  • Tabebuia impetigensa
  • African marigold (Tagetes erecta)
  • cape honeysuckle (Tecomaria capensis)
  • Vanda sp.

Damping-Off:

  • garden beet (Beta vulgaris)

Root Rot:

  • Formosan kow (Acacia koa)
  • koa (Acacia koa var. koa)
  • Ageratum sp.
  • Chinese evergreen (Aglaonema commutatum)
  • Aglaonema sp.
  • seaside bentgrass (Agrostis palustris)
  • shallot (Allium ascalonicum)
  • Chinese chives (Allium tuberosum)
  • red ginger (Alpinia purpurata)
  • joy weed (Alternanthera amoena)
  • slender amaranth, pakai (Amaranthus gracilis)
  • Amaryllis sp.
  • pineapple (Ananas comosus)
  • dill (Anethum graveolens)
  • anthurium (Anthurium andraeanum)
  • Mexican creeper (Antigonon leptopus)
  • celery (Apium graveolens var. dulce)
  • aster (Aster sp.)
  • Begonia sp.
  • snow bush (Breynia nivosa)
  • pigeon pea (Cajanus cajan)
  • Calathea sp.
  • China aster (Callistephus chinensis)
  • Callistephus sp.
  • sweet pepper (Capsicum frutescens)
  • papaya (Carica papaya)
  • Natal plum (Carissa grandiflora)
  • cockscomb (Celosia argentea var. cristata)
  • golden-fruited palm (Chrysalidocarpus lutescens)
  • florist's chrysanthemum (Chrysanthemum morifolium)
  • watermelon (Citrullus vulgaris)
  • croton (Codiaeum variegatum)
  • tickwood (Coreopsis lanceolata)
  • crown vetch (Coronilla varia)
  • ctenanthe (Ctenanthe oppenheimiana)
  • cantaloupe (Cucumis melo var. cantalupensis)
  • cucumber (Cucumis sativus)
  • pumpkin (Cucurbita pepo)
  • Italian cypress (Cupressus sempervirens)
  • carrot (Daucus carota var. sativa)
  • sweet william (Dianthus barbatus)
  • carnation (Dianthus caryophyllus)
  • lawn leaf (Dichondra repens)
  • Dracaena deremensis
  • centipede grass (Eremochloa ophiuroides)
  • poinsettia (Euphorbia pulcherrima)
  • Chinese banyan (Ficus retusa)
  • fern tree (Filicium decipiens)
  • strawberry (Fragaria chiloensis var. ananasa)
  • galinsoga (Galinsoga parviflora)
  • gazania (Gazania rigens)
  • soybean (Glycine max)
  • globe amaranth (Gomphrena globosa)
  • baby's breath (Gypsophila paniculata)
  • Hedera sp.
  • white ginger (Hedychium coronarium)
  • kahili ginger (Hedychium garderianum)
  • sunflower (Helianthus annuus)
  • garden balsam (Impatiens balsamina)
  • sweet potato (Ipomoea batatas)
  • Arabian jasmine (Jasminum sambae)
  • head lettuce (Lactuca sativa var. capitata)
  • 'akulikuli' (Lampranthus glomeratus)
  • lantana (Lantana camara)
  • Hawaiian holly (Leea coccinea)
  • pincushion protea (Leucospermum cordifolium)
  • farfugium (Ligularia kaemperi)
  • statice (Limonium sinuatum)
  • birds-foot trefoil (Lotus corniculatus)
  • European blue lupine (Lupinus angustifolius)
  • macadamia (Macadamia integrifolia)
  • alfalfa (Medicago sativa)
  • tree heliotrope (Messerschmidia argentea)
  • crested fern (Microsorum punctatum)
  • naio (Myoporum lacteum)
  • Nephrolepis sp.
  • oleander (Nerium oleander)
  • Ocimum gratissimum
  • lily turf or mondo grass (Ophiopogon japonicus)
  • yam bean (Pachyrrhizus erosus)
  • tree peony (Paeonia suffruticosa)
  • Pandanus sp.
  • hilo grass (Paspalum conjugatum)
  • passion fruit (Passiflora edulis)
  • Pelargonium sp.
  • Peperomia metallica
  • Peperomia obtusifolia
  • avocado (Persea americana)
  • Philodendron hastatum
  • baby's tears (Pilea depressa)
  • creeping charlie (Pilea nummularifolia)
  • Pinus sp.
  • pea (Pisum sativum)
  • edible-podded pea (Pisum sativum var. macrocarpon)
  • cats claw, black bead (Pithecellobium unguis-cati)
  • Japanese pittosporum (Pittosporum tobera)
  • Plumeria acuminata
  • Podocarpus macrophyllus
  • tuberose (Polianthes tuberosa)
  • Polygonum capitatum
  • panax (Polyscias guilfoylei)
  • leather holly fern (Polystichum adiantiforme)
  • purslane (Portulaca oleracea)
  • jade tree (Portulacaria afra)
  • Protea sp.
  • self-heal (Prunella vulgaris)
  • guava (Psidium guajava)
  • Macarthur palm (Ptychosperma macarthurii)
  • pear (Pyrus communis)
  • Rhododendron sp.
  • castor bean (Ricinus communis)
  • rosemary (Rosmarinus officinalis)
  • Rubus sp.
  • African violet (Saintpaulia ionantha)
  • weeping willow (Salix babylonica)
  • common sage (Salvia officinalis)
  • beach naupaka (Scaevola sericea)
  • Scaevola taccada
  • Dwarf Schefflera (Schefflera arboricola)
  • stonecrop (Sedum lineare var. variegatum)
  • gloxinia (Sinningia speciosa)
  • eggplant (Solanum melongena)
  • black nightshade (Solanum nigrum)
  • potato (Solanum tuberosum)
  • Soleirolia repens
  • sorghum (Sorghum bicolor)
  • Jamaica vervain (Stachytarpheta jamaicensis)
  • common comfrey (Symphytum officinale)
  • strawberry clover (Trifolium fragiferum)
  • manila palm (Veitchia merrellii)
  • Verbena sp.
  • cowpea (Vigna sinensis)
  • Vigna sp.
  • Vinca sp.
  • pansy (Viola tricolor)
  • Vitis sp.
  • Wedelia trilobata
  • corn, maize (Zea mays)
  • cultivated zinnia (Zinnia elegans)
  • Indian jujube (Ziziphus mauritiana)
  • Japanese lawn grass (Zoysia japonica)
  • mascarene grass (Zoysia tenuifolia)

Seedling Blight and Root Rot:

  • silkwood (Flindersia brayleyana)

Sheath, Basal Stem, and Root Rot:

  • sugar can(Saccharum officinarum)

Other:

  • papala, kepau (Bougainvillea umbellifera)
  • dasheen (Colocasia esculenta var. globulifera)
  • Bermuda grass (Cynodon dactylon)
  • petunia (Petunia hybrida)
  • double-flowering pomegranate (Punica granatum var. nana)

RHIZOCTONIA SOLANI

Bottom Rot:

  • head lettuce (Lactuca sativa var. capitata)
  • Damping-Off, Root Rot:
  • onion (Allium cepa)

Pocket Rot:

  • taro (Colocasia esculenta)

Rhizoctoniose:

  • potat(Solanum tubersoum)

Rhizome and Root Rot:

  • ginger (Zingiber officinale)

Root Rot:

  • peanut (Arachis hypogaea)
  • narrow-leaved carpet grass (Axonopus affinis)
  • broad-leaved carpet grass (Axonopus compressus)
  • field mustard (Brassica campestris)
  • turnip (Brassica rapa)
  • Bermuda grass (Cynodon dactylon)
  • carnation (Dianthus caryophyllus)
  • Euphorbia sp.
  • yellow passion fruit (Passiflora edulis f.sp. flavicarpa)
  • parsley (Petroselinum crispum)
  • garden bean (Phaseolus vulgaris)
  • panax (Polyscias guilfoylei)
  • Douglas fir (Pseudotsuga menziesii)

Other:

  • rutabaga (Brassica campestris var. napobrassica)
  • cabbage (Brassica oleracea var. capitata)
  • Chinese or celery cabbage (Brassica pekinensis)
  • tomato (Lycopersicon esculentum)
  • rhubarb (Rheum rhaponticum)
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Taxonomy

KINGDOM: Mycetae (fungi)

DIVISION: Eumycota

SUBDIVISION: Deuteromycotina (The imperfect fungi)

CLASS: Agonomycetes

ORDER: Agonomycetales

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Characteristics

No information is available for this section at the moment, please check future Knowledge Master Versions.

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Disease Types

No information is available for this section at the moment, please check future Knowledge Master Versions.

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Management

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References

Agrios, G.N. 1988. Plant Pathology, 3rd edition. Academic Press, Inc: San Diego. 803 pp.

Farr, , D.F., G.F. Bills, G.P. Chamuris, and A.Y. Rossman. 1989. Fungi on Plants and Plant Products in the United States. APS PRESS: St. Paul, Minnesota. 1252 pp.

Raabe, Robert D., Ibra L. Conners, and Albert P. Martinez. 1981. Checklist of Plant Diseases in Hawaii. Hawaii Institute of Agriculture and Human Resources, College of Tropical Agriculture and Human Resources, University of Hawaii (Information Text Series 022).

Streets, R.B. 1982. The Diagnosis of Plant Diseases: a field and laboratory manual emphasizing the most practical methods for rapid identification. The University of Arizona Press: Tucson, Arizona.

JUNE 1994

1-RHIZOC

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