The Orchid Doctor Articles under the Heading Rots

Rots Comments
ROTS: Fungal and Bacterial Those that attack roots, pseudobulbs and leaves are numerous and have difficult names; here they are listed, illustrated for recognition and their controls supplied; to avoid meeting up with any of them it is recommended that you use a periodic spraying with Physan at 1 to 1.5 tpg. monthly as "preventative maintenance"-, which may not be approved by all. A82-479; address for identification service. OIE88Apr-l 0
ROTS: Fungus or Bacterial Systemic controls that are recommended for use on seedlings or mature plants include such names as Benlate and Difolatan especially for fungal problems; Black rot and Brown rot are both caused by bacteria and they are best controlled by Truban, which is available in most nurseries. OIE85Jy-7 0
ROTS: On Cymbidiums This is usually Black rot; the plants can be saved by scraping all the rot off the pseudobulbs and removing the roots to allow air to inhibit the continued growth of the anaerobic bacteria which is the root of the problem. A88-35 0
ROTS: Pseudobulbs Bulb rot or black rot is caused by Pythium and Phytophthora, which are closely related soil-inhabiting fungi whi ch spread under warm wet conditions and can be splashed about with a hose; try to apply chemicals as protective measure, especially in early spring; Fungarid is one such recommended in Australia. AU83-250 0

New Topics

  1. Leshya Perkins asked question Image of a plant please in category General Discussion
  2. Danny Lyon asked question Phaius bernaysii in category General Discussion
  3. Rosemary Chenery asked question Lost tag in category General Discussion
  4. Glenda Ratliff asked question Issue with Blc. Ben O'Neil "Jubilee in category General Discussion

New Comments

  1. Christiaan Viljoen commented on member plant Psh. fragrans by Christiaan Viljoen
  2. Christiaan Viljoen commented on member plant Z. maculatum by Christiaan Viljoen
  3. Christiaan Viljoen commented on member plant C. Gaskell-Pumila 'Azure Star' by Christiaan Viljoen
  4. Robert H. Findlay commented on member plant Rlc. Joy Sokabe var. Volcano Queen by Sally K
  5. James Lunsford commented on member plant Lc. Sagarik Wax 'African Beauty AMO/AOS x Blc. Cherry Suisse'Kauai' HCC/AOS var. Cattlyea 'Hybrid ' by James Lunsford
  6. John Varigos commented on orchid Bulb. schwarzii
  7. Linda Hartman commented on topic "Issue with Blc. Ben O'Neil "Jubilee" by Glenda Ratliff
  8. Henry Shaw commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  9. Mary Lane commented on member plant Den. Tianmu Canary by Terre Moore
  10. Pamela Stegmaier commented on member plant Rlc. Esther Costa var. Orange Fantasy by Mary Lane