Newly Posted Articles

GYPSUM: As Top Dressing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It can be beneficial for cymbidiums where the water supply has too much sodium; it adds calcium. OD76-122 Read More

ENDANGERED SPECIES: Regulation of Trade In

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago The CITES agreement with full explanation, documents, statistics of international trade; refer to A81-959 Read More

FLOWERS: Shelf-life Expectancy

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Various chemical solutions used on cut flowers; 8-hydroxy-quinoline, and the same with sucrose, ascorbic acid and aspirin prolonged the life of cut flowers; ascorbic acid alone had some possible ef... Read More

FLUORESCENT LIGHTS: Indoor Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago A review of 47 papers on growing under lights which appeared in the American Orchid Society Bulletin; refer to A77-318 Read More

OSMUNDA: Digging, Preparing and Using

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Osmunda regalis, 0. Claytonia, and 0. cinnamomea are native to northern United States and Canada; dig large plants with 20 inch circumference of soil six inches deep; wash it thoroughly in a lake o... Read More

OSMUNDA: Does it Need Fertilizer?

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Cattleyas and phalaenopsis plants grown in it get most if not all the nutrients they need, without fertilizer; do not use more than one teaspoon to five gals, water with a 20-20-20 or other formula... Read More

PENTAC: A Wettable Powder Form

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago One of the safest pesticides, it may be mixed with one part Kelthane to two parts Pentac; effective particularly on mites. A82-352 Read More

FLUORESCENT LIGHTS: Minimum Requirements

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago In a 3ft. x 3ft. x l8in. cabinet: two 3-ft. tubes placed nine inches apart; for high-light requiring plants: three 3ft. tubes which equals 90 watts for cattleyas, encyclias, oncidiums, dendrobiums,... Read More

PESTICIDES: Regular Use

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago A regular programme of applying pesticides is not beneficial to the plants, except in moderation. A78-112 Read More

FLUORESCENT LIGHTS: Mixed Tubes

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Cool-white with Gro-Lux, also Natur-Escent and Gro-Lux in a 1:1 ratio; four 40-watt tubes over 2 ft. X 4 ft. area is adequate light for cattleyas, miltonias, paphiopedilums and phalaenopsis. A66-92... Read More