Category: Orchid Doctor

FUNGUS: Diseases and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For a list of Cercosporas, their symptoms, controls, illustrations, prevention, etc. refer to A82-593; OBIV-265 Read More

FUNGUS: In Bark in Pots

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 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 Read More

FUNGUS: Leaf and Flower Spotting

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They cause minor damage; they seldom kill a plant; they do detract from appearance for several years. AH 15 Read More

FUNGUS: Potting Mixes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Orchids are tolerant of fungal neighbors around their roots and are unlikely to suffer; apply a weak fungicide other than Benlate. OR76-361 Read More

FUNGUS: Preventative Spraying

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use Truban and Banrot every two months mixed together 1/2 tpg. of each in the same gallon of water. A87-794 Read More

FUNGUS: Resistance to Fungicide Development

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Fungi have shown some resistance to Benlate (benomyl); no resistance shown to Truban, or Dexon (which might be restricted in your area). A77-995 Read More

FUNGUS: Septate Type Spotting Under the Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Control it with a Banrot spray at lttpg. and repeat in two to three weeks. A82-690 Read More

FUNGUS: Spot Treatment

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 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 Read More

FUNGUS: Spots on Phalaenopsis Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use of Captan paste of doubtful value; Benlate is a much more effective fungicide and is systemic. A77-449 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More