Orchid doctor

BROWN ROT: Erwinia cypripedii

Ailments Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 3 years ago.

Article Blog   Article Index

Attacks paphiopedilums; bacterial brown rot starts as small roundish water-soaked yellow spots often in the middle of the leaf; changes to dark chestnut; may appear greasy; reaches growing point of plant and changes it to dark shrivelled mass; isolate plants; disinfect bench with Clorox 10%; destroy all leaves; spray with Physan 20, 1.5 tpg. or drench in Natriphene 1:2,000 tpg.). B40; BU49

Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Brown Rot

Brown Rot Comments
BROWN ROT: In Paphiopedilums Caused by the bacillus Erwinia cypripedii; starts as small chestnut brown spot on leaf; spreads to crown then to other leaves; spreads rapidly; plant can be saved by excision; soak for hours in Natriphene or Anti-Damp; repeat after a few days, two or three treatments. N320Drench with Banrot, 1 ttpg. A66-406; A75-980 (illus.); A77-449Small round to oval water-soaked spots, in middle of leaf; not common; spray with Physan 20, 1/2 ttpg. AH22 0

New Topics

  1. Marilynn Davis asked question Can grow light cause deformed leaves? in category General Discussion
  2. George Su asked question New Intergeneric Orchids in category Other Genera
  3. Robert Scully asked question Searching for a special hybrid in category General Discussion
  4. Edward Zapata asked question Cymbidium breeding info? in category General Discussion
  5. Hfs photo Henry Shaw started topic Missing Gan Lin phal variety in category General Discussion

New Comments

  1. Iggy9 Sharie Heckaman commented on article "Catasetum lendarium nv. sp 2020" by Ariel Blind
  2. Marilynn Davis commented on topic "Can grow light cause deformed leaves?" by Marilynn Davis
  3. Daniel Mumau commented on orchid Lc. Lancer
  4. Image Carol Holdren commented on topic "Orchid not found in Orchids.Org" by Mary Lane
  5. Image Carol Holdren commented on topic "New Intergeneric Orchids" by George Su
  6. Edward Zapata commented on topic "Cymbidium breeding info?" by Edward Zapata
  7. Stefan Neher commented on orchid Bl. Joanne Singer
  8. Stefan Neher commented on article "BLACK ROT: Pythium Ultimum" by Robert M. Hamilton (Compiler)
  9. Image Carol Holdren commented on topic "Searching for a special hybrid" by Robert Scully
  10. Edward Zapata commented on member plant Cym. Sarah Jean by Edward Zapata