FUNGUS: Spot Treatment

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 4 years ago.

Article Blog   Article Index
Use a paste made of Captan powder and a solution of Physan (1/2 teaspoon in 1/3 gallon of water) and apply it to the affected areas with Q-tips. OD87-154
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Fungus Disease

Fungus Disease Comments
FUNGAL DISEASES: Full Listing of Pests For the causes, hosts, symptoms, controls of every reported type refer to OBIV-2 74 0
FUNGAL ROTS: Cured with Sprays The three effective sprays are Physan 20 at 5ml. to 5 litres of water, Natriphene at lg to 2 litres of water,and Ben late at 3g to 2 litres of water. AU83-251 0
FUNGUS: Anthracnose-type Which Grows on Live or Dead Tissue It is easily controlled with benomyl (Benlate) 1 tpg.; or, use Dithane M5, 1.5 tpg. A78-1124 0
FUNGUS: Black, Sooty on Cymbidium Leaves It grows on the "honey dew" secreted by mealy bugs and will wash off. A63-641 0
FUNGUS: Diseases and Controls For a list of Cercosporas, their symptoms, controls, illustrations, prevention, etc. refer to A82-593; OBIV-265 0
FUNGUS DISEASES: Control of Gloeosporium (anthracnose) Remove diseased parts, spray with copper or Maneb M22 at 1.5 ttpg.; give lots of air. A65-536; latest control is Benlate at 1 to 1.5 ttpg. OWD 0
FUNGUS DISEASES: Of Plants For an overview refer to N315+ 0
FUNGUS DISEASES: Of Seedlings and Adult Plants For a review refer to W1-420+ 0
FUNGUS: In Bark in Pots White thread-like fungus grows fastest in media kept on the dry side; before bark begins to break down however the plant is usually repotted. A73-409 0
FUNGUS: Leaf and Flower Spotting They cause minor damage; they seldom kill a plant; they do detract from appearance for several years. AH 15 0
FUNGUS: Potting Mixes Orchids are tolerant of fungal neighbors around their roots and are unlikely to suffer; apply a weak fungicide other than Benlate. OR76-361 0
FUNGUS: Preventative Spraying Use Truban and Banrot every two months mixed together 1/2 tpg. of each in the same gallon of water. A87-794 0
FUNGUS: Resistance to Fungicide Development Fungi have shown some resistance to Benlate (benomyl); no resistance shown to Truban, or Dexon (which might be restricted in your area). A77-995 0
FUNGUS: Septate Type Spotting Under the Leaves Control it with a Banrot spray at lttpg. and repeat in two to three weeks. A82-690 0
FUNGUS: Spots on Phalaenopsis Leaves Use of Captan paste of doubtful value; Benlate is a much more effective fungicide and is systemic. A77-449 0

New Topics

  1. John Small asked question Paper Wasp? in category General Discussion
  2. Sharie Heckaman started topic Photos of plants in category General Discussion
  3. Roberto Lizama started topic Orchid identification in category General Discussion
  4. Roberto Lizama asked question Help to idenficate this orchid in category General Discussion
  5. William Gorski asked question Dendrobium Identification in category General Discussion

New Comments

  1. Carol Holdren commented on member plant Phal. buyssoniana by Robert Oceans
  2. Mary Lane commented on member plant Fdk. After Dark 'SVO Black Pearl FCC/AOS; CCE/AOS' by William Gorski
  3. John Small commented on topic "Paper Wasp?" by John Small
  4. Lauren Hutchison commented on topic "Help to idenficate this orchid" by Roberto Lizama
  5. Carol Holdren commented on member plant Phal. Timothy Christopher by Vickie Seibert
  6. Carol Holdren commented on topic "Photos of plants " by Sharie Heckaman
  7. Carol Holdren commented on member plant C. Ronald Fonseca var. Compact 'SVO' by Vickie Seibert
  8. Roberto Lizama commented on member plant Ntl. bicolor by Roberto Lizama
  9. Carol Holdren commented on member plant Gra. stapeliiflora var. Waki by Melvin Waki
  10. Vickie Seibert commented on member plant Phal. Anna-Larati Soekardi 'Wilson' by Vickie Seibert
  11. Carol Holdren commented on member plant Rrm. Spunky by Melvin Waki
  12. Charles Vella commented on topic "Orchid list Cold/Warm" by Charles Vella
  13. Sandi Block-Brezner commented on topic "Brassocattleya hybrid?" by Sandi Block-Brezner
  14. Robert H. Findlay commented on topic "looking for info about an unregistered cattleya" by bob lewis
  15. james Hu commented on orchid Den. vannouhuysii
  16. Chase Hubbard commented on member plant Hknsa. Sogo Doll by Tom Kuligowski
  17. Colin Campbell commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth
  18. Carol Holdren commented on member plant Lc. Memory of PienPien Wei by Robert Rand
  19. Robert Rand commented on member plant Bc. Yellow Bird by John Small
  20. Sharie Heckaman commented on member plant Btcm. Hwuluduen Chameleon by Diana Sammy