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Cylindrocladium Blight and Root Rot

Cylindrocladium scoparium

135 host plants

Cylindrocladium causes leaf blight and root rot on ornamental plants. You see brown lesions on foliage and decline from root rot. The fungus favors warm, wet soils. Use well-draining soil media and avoid overwatering.

Keep humidity as low as practical. Use only disease-free cuttings in disease-free soil or soilless potting media.

Host Plants (135)

Adenium obesum Desert Rose, Desert Azalea, Mock Azalea
Menziesia ciliicalyx var. multiflora Mock Azalea, Menziesia
Menziesia ferruginea Rusty Menziesia, Fool's Huckleberry, False Azalea
Rhododendron 'Purple Gem' Purple Gem Rhododendron
Rhododendron airy Rhododendron, airy
Rhododendron alabamense Alabama Azalea
Rhododendron alice Alice Rhododendron
Rhododendron anah Rhododendron, anah
Rhododendron anna Rhododendron, anna
Rhododendron april Rhododendron, april
Rhododendron arboreum subsp. cinnamomeum Cinnamon Rhododendron
Rhododendron argosy Argosy Rhododendron
Rhododendron augustinii Augustine Rhododendron
Rhododendron auriculatum No common name (R. auriculatum)
Rhododendron beauty Rhododendron, beauty
Rhododendron bibiani Bibiani Rhododendron
Rhododendron blue Rhododendron, blue
Rhododendron boule Rhododendron, boule
Rhododendron bow Rhododendron, bow
Rhododendron bric Rhododendron, bric
Rhododendron bureavii Bureau Rhododendron
Rhododendron campylocarpum subsp. coloxanthum Coloxanthum Rhododendron
Rhododendron catawbiense Catawba Rhododendron
Rhododendron cheer Cheer Rhododendron
Rhododendron chevalier Rhododendron, chevalier
Rhododendron christmas Rhododendron, christmas
Rhododendron cinnabarinum Cinnabar Rhododendron
Rhododendron concinnum Concinnum Rhododendron
Rhododendron cotton Rhododendron, cotton
Rhododendron crater Rhododendron, crater
Rhododendron crest Crest Rhododendron
Rhododendron cunninghams Rhododendron, cunninghams
Rhododendron cynthia Cynthia Rhododendron
Rhododendron daphnoides Daphnoides Rhododendron
Rhododendron dauricum Dauricum Rhododendron
Rhododendron davidsonianum Davidsonianum Rhododendron
Rhododendron day Rhododendron, day
Rhododendron deciduous Rhododendron, deciduous
Rhododendron defines Rhododendron, defines
Rhododendron delaware Rhododendron, delaware
Rhododendron dora Rhododendron, dora
Rhododendron dreamland Dreamland Rhrododendron
Rhododendron el Rhododendron, el
Rhododendron elisabeth Rhododendron, elisabeth
Rhododendron elizabeth Elizabeth Rhododendron
Rhododendron falconeri subsp. falconeri Falconer Rhododendron
Rhododendron fantastic Fantastic Rhododendron
Rhododendron formosum var. formosum Formosum Rhododendron
Rhododendron forrestii subsp. forrestii Forrest Rhododendron
Rhododendron fortunei subsp. discolor Fortune Discolor, Discolor Rhododendron
Rhododendron frilly Rhododendron, frilly
Rhododendron gartendirektor Rhododendron, gartendirektor
Rhododendron girards Rhododendron, girards
Rhododendron goldflimmer Goldflimmer Rhododendron
Rhododendron grace Rhododendron, grace
Rhododendron groenlandicum Labrador-tea, Labrador Tea
Rhododendron haematodes subsp. haematodes Haematodes Rhododendron
Rhododendron hallelujha Hallelujah Rhododendron
Rhododendron hanceanum Hanceanum Rhododendron
Rhododendron hardijzer Rhododendron, hardijzer
Rhododendron harry Rhododendron, harry
Rhododendron hino Rhododendron, hino
Rhododendron hinode Rhododendron, hinode
Rhododendron hippophaeoides var. hippophaeoides Hippophaeoides Rhododendron
Rhododendron hodgsonii Hodgson Rhododendron
Rhododendron honourable Rhododendron, honourable
Rhododendron horizon Rhododendron, horizon
Rhododendron hotei Hotei Rhododendron
Rhododendron irroratum Irroratum Rhododendron
Rhododendron jock Jock Rhododendron
Rhododendron johnstoneanum Rhododendron, johnstoneanum
Rhododendron keiskei Keiskei Rhododendron, Keisuki Rhododendron
Rhododendron ken Rhododendron, ken
Rhododendron kiusianum Kiusianum Azalea, Kyushu Azalea
Rhododendron lacteum Lacteum Rhododendron
Rhododendron lees Rhododendron, lees
Rhododendron lems Rhododendron, lems
Rhododendron lights Rhododendron, lights
Rhododendron loderi Rhododendron, loderi
Rhododendron luteiflorum Luteiflorum Rhododendron
Rhododendron lutescens Lutescens Rhododendron
Rhododendron luteum Pontic or Pontica Azalea
Rhododendron macabeanum Macabeanum Rhododendron
Rhododendron macrophyllum Pacific Rhododendron
Rhododendron moonstone Moonstone Rhododendron
Rhododendron mrs Rhododendron, mrs
Rhododendron mucronulatum Rhododendron, mucronulatum
Rhododendron myrtifolium Myrtifolium Rhododendron
Rhododendron niveum Niveum Rhododendron
Rhododendron northern Rhododendron, northern
Rhododendron occidentale Western Azalea
Rhododendron orbiculare subsp. orbiculare Obiculare Rhododendron
Rhododendron orchid Rhododendron, orchid
Rhododendron oreotrephes Oreotrephes Rhododendron
Rhododendron oudijks Rhododendron, oudijks
Rhododendron pachytrichum Pachytrichum Rhododendron
Rhododendron peekaboo Peekaboo Rhododendron
Rhododendron pink Rhododendron, pink
Rhododendron pioneer Rhododendron, pioneer
Rhododendron pjm P.J.M. Rhododendron
Rhododendron point Rhododendron, point
Rhododendron ponticum Rhododendron, ponticum
Rhododendron president Rhododendron, president
Rhododendron prinophyllum Roseshell Azalea, Pinkshell Azalea
Rhododendron prunifolium Plumleaf Azalea
Rhododendron quinquefolium Quinquefolium Azalea
Rhododendron racemosum Racemosum Rhododendron
Rhododendron ramapo Ramapo Rhododendron
Rhododendron rosamundi Rosamundi Rhododendron
Rhododendron roseum Rhododendron, roseum
Rhododendron rosy Rhododendron, rosy
Rhododendron roxieanum var. oreonasters No common name
Rhododendron rubiginosum Rubiginosum Rhododendron
Rhododendron sappho Sappho Rhododendron
Rhododendron scarlet Rhododendron, scarlet
Rhododendron schlippenbachii Royal Azalea
Rhododendron serpyllifolium Wild Thyme, Azalea
Rhododendron serpyllifolium var. albifolrum White Wild Thyme, Azalea
Rhododendron sinofalconeri Sinofalconer Rhododendron
Rhododendron sinogrande Sinogrande Rhododendron
Rhododendron smirnowii Smirnow Rhododendron
Rhododendron snow Rhododendron, snow
Rhododendron stenopetalum Rhododendron, stenopetalum
Rhododendron taurus Taurus Rhododendron
Rhododendron temple Rhododendron, temple
Rhododendron thomsonii subsp. thomsonii Thomson Rhododendron
Rhododendron tri Rhododendron, tri
Rhododendron trilby Trilby Rhododendron
Rhododendron unique Unique Rhododendron
Rhododendron vulcan Vulcan Rhododendron
Rhododendron wardii Ward Rhododendron
Rhododendron white Rhododendron, white
Rhododendron wiltonii Wilton Rhododendron
Rhododendron winsome Winsome Rhododendron
Rhododendron yakushimanum Yak Rhododendron