Category: Orchid Doctor

WIRE: Barbed Wire for Hanging Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The barbs keep the mounts in their places; other wire useful in greenhouses is the type sold for electric fences, cheap and rust resistant; galvanized clothes line is useful and can be straightened... Read More

WIRE: How to Straighten It

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cut off desired length from a roll, fix one end to a base and attach the other end in the bit of an electric drill, hold the wire taut, allow drill to turn a second or two. A69-884 Read More

WONDERLITE: Growth Lamp

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Screw base type: a patented mercury vapour flood lamp for standard fixtures and which requires no special ballast; details; refer to OR81-32 Read More

WOOD PRESERVATIVES: Greenhouse Use

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The only dependably safe one is copper napthanate; zinc napthanate is a lesser possibility. A76-795 Read More

WOOD PRESERVATIVES: Injury Causes in the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Creosote should never be used inside or outside a greenhouse; penta (Pentachlorophenol) should never be used either; it cannot be removed, but it can be covered; use a coating of linseed oil follow... Read More

WOOD TREATMENTS: Anti-rot Treatment for Greenhouses Which Are Not Harmful to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Copper napthanate preparation sold under the names of Cuprinol or Kopex is the best. A77-619 Read More

WOOD TREATMENTS: For Greenhouse Construction of Wood

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Oil-borne preservatives are: creosote, pentachlorophenol and copper napthanate; the first two cause injury to plants with their fumes; water-borne treatments are: chromated zinc chloride, chromated... Read More

WOOD WOOL: "excelsior" as a Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Two cattleyas planted in it grew satisfactorily and flowered twice in three years, and grew larger than before; it lasts for two years and does not seem to rot. OR69-97 Read More

WOOD: Decayed, for Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For general potting use, decayed trees pine and cedar (in California) were crushed, passed through a half-inch screen; soaked for a week in a nutrient solution of eleven chemicals; used successfull... Read More

WOOD: Greenhouse Construction

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The best two woods are redwood and cypress, the latter now difficult to find. A72-807 Read More