• R. Kenneth Horst

EASTER CACTUS (Rhipsalidopsis)

  • Rot, Stem. Drechslera cactivora (Helminthosporium cactivorum), FL.


  • Leaf Spot. Stemphylium bolickii, FL.

  • Nematode, Root Knot. Meloidogyne sp., CA.

  • Rust. Puccinia echeveriae (III), CA.

ECHINACEA (Purple Coneflower)

  • Bacterial, phytoplasma. Aster Yellows, WI.

  • Blight, Wilt. Fusarium oxysporum, SD.

  • Leaf Spot. Cercospora rudbeckii, IA; Septoria lepachydis, WI.

  • Phyllody, Phytoplasma, MD.

  • Powdery Mildew. Golovinomyces cichoracearum, Canada.

  • Rot, Root. Phymatotrichum omnivorum, TX.

  • Rot, Stem. Sclerotinia sclerotiorum.

  • Virus. Mosaic, unidentified, NY.

  • Wilt. Verticillium dahliae, OR.


  • Bacterial Soft Rot. Erwinia carotovora, FL; E. aroideae, FL, TX.

  • Blight, Southern. Sclerotium rolfsii, FL, NY.

  • Leaf Spot. Cladosporium colocasiae, LA.

  • Nematode, Root Knot. Meloidogyne sp., FL, TX.

  • Rot, Black, of tuber. Diplodia sp., FL, SC, TX; Gray, Fusarium solani, FL, TX.

  • Rot, Root. Pythium debaryanum, CA.

  • Virus. Dasheen Mosaic, HI.



Powdery Mildew Fusarium Oxysporum Downy Mildew Leaf Spot Botrytis Cinerea 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Copyright information

© Springer Science+Business Media Dordrecht 2013

Authors and Affiliations

  • R. Kenneth Horst
    • 1
  1. 1.Plant Pathology and Plant Microbe BiologyCornell UniversityIthacaUSA

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