Newly Posted Articles

PAPHIOPEDILUMS: Water Is Their Basic Need

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Rod McLellan grew 15 plants for five years in a tray of water one inch deep, and had flowers just as prolific as from plants watered several times a week. OD69-307 Read More

WOOD: In Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Bark removed from a tree by mechanical means rather than by the jet process has too much wood mixed in; it causes mycelium mold to form rapidly in the pot; it is possibly injurious to the plant; it... Read More

ARCILLITE: Granular Calcined Clay

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A commercial product available in two sizes as an aggregate: fine- perhaps for odontoglossums and terrestrials, and large-sized 2.5cm.+ and sold as Terragreen which might be the most useful general... Read More

BACKBULBS: Propagation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For cataseturns and others, place the plant in a suitable mix (for catasetums or other genera) in a four-inch pot, moisten slightly and put in a clean, clear polyethylene bag to cover all parts, se... Read More

BACTERIAL BROWN SPOT: Phytomonas Cattleyae

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Attacks cattleyas, and especially phalaenopsis and seedlings; small water-soaked spots; dirty green at first turn brown or black, enlarge rapidly; on phalaenopsis spot is blister-like and spreads r... Read More

TURKEY GRAVEL (GRIT): As Potting Additive

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Is readily available at feed stores; cheap, clean, easily handled; cattleya roots grow into it; drains well; potting operation is simple; its weight is a disadvantage. A70-586 Read More

BACKBULBS: Practical Means of Propagation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cattleya sections should have three or four pseudobulbs with healthy leaves, firm, viable, dormant buds and perhaps a few good roots; give them even casual good culture during summer and they will ... Read More

PARTS PER MILLION: A Scientific Measurement

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Frequently applied to fertilizer recommendations; such as for cattleyas -- 50ppm of Nitrogen, 20ppm. of Potassium, 50ppm. of Phosphorous, plus 50ppm. of Magnesium Sulphate; one part per million is ... Read More

PATENTED ORCHIDS: First in Australia

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago American, Japanese and European growers are protected by plant patent laws, so In effect a competing firm cannot buy a plant and then mericlone it at will for sale; a first for Australia. AU83-174 Read More

CLOROX: For Cleaning Benches

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Algae can be cleaned off wood benches with a 10% solution of Clorox. OD70-27 Read More