Orchid doctor

FUNGUS: Resistance to Fungicide Development

Ailments Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin about 3 years ago.

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Fungi have shown some resistance to Benlate (benomyl); no resistance shown to Truban, or Dexon (which might be restricted in your area). A77-995
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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: 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
FUNGUS: Spot Treatment 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 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

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  1. Image Carol Holdren commented on topic "Orchid not found in Orchids.Org" by Mary Lane
  2. Image Carol Holdren commented on topic "Can grow light cause deformed leaves?" by Marilynn Davis
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  4. Edward Zapata commented on topic "Cymbidium breeding info?" by Edward Zapata
  5. Stefan Neher commented on orchid Bl. Joanne Singer
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  7. Image Carol Holdren commented on topic "Searching for a special hybrid" by Robert Scully
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  9. Hfs photo Henry Shaw commented on topic "Missing Gan Lin phal variety" by Henry Shaw
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