Newly Posted Articles

NORTHERN AREAS: Growing in Canada

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cultural limitations brought on by climate; special requirements, tables to follow, design of greenhouses, including solar types. A86-480 Read More

NITROGEN: Function as Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Large amounts are required for continued production of new cells. AU75-45Used by the plant to make healthy green leaves and stems; it promotes strong green foliage. A70-139Used in excess of require... Read More

RAIN FOREST: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago There is no agreement in the botanical world as to what this means; of relevance to orchidists; discussion and preferred meaning given for it, for cloud forest, tropical rain forest, etc. ; refer t... Read More

BLACK MOLD: On Dendrobiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Probably arises from the punctures made by aphids; eliminate them with Piramor at 3 grams to 2 gallons of water, or with Malathion at ltpg. plus 1/2 teaspoon of a wetting agent, or 10 drops of dish... Read More

BLACK ROT: Leads Go Black, Leaves Change to Lighter Color and Wrinkle; Pseudobulbs Wrinkle and Show Brown Patches

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Truban is effective; cut off all diseased parts; plunge all into solution 1 tpg. A74-1062 Read More

FLOWERS, CUT: Extending Their Freshness

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Most flowers keep best at between 45 deg.F. and 50 deg.; when too cold flowers turn brown and glassy; phalaenopsis can be put in tubes of water, placed in a flat box enclosed in polyethylene film t... Read More

PSEUDOBULBS: Twisted Bulbs on Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago These can develop for no apparent reason, except that water lodging in immature growths may be the cause. A85-832 Read More

CYMBIDIUMS, MINIATURE: Early Breeding Results

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago List of first to third generations with six species; refer to A70-100+; AU70-28+ Read More

CYMBIDIUMS, MINIATURE: Meaning

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago This designation refers to the flower size not the foliage, as in Japan. OIE88Jan-9 Read More

CYPRIPEDIUMS: Grown in a Northern Garden

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 12 native and exotic terrestrials grown successfully, with descriptions and cultural requirements; refer to CA84#2-20;#3-20 Read More