Newly Posted Articles

NITROGEN: Function as Fertilizer

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

FLOWERS, CUT: How to Keep Them the Longest

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidiums keep best at 47 to 48 deg.F.; cattleyas colored keep best at 48 to 50 deg.F.; cattleyas white keep best at 48 to 50 deg.F.; keep the stems in water and provide humidity of 50%. A68-811 Read More

CYMBIDIUMS, MINIATURE: Early Breeding Results

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 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 almost 8 years ago This designation refers to the flower size not the foliage, as in Japan. OIE88Jan-9 Read More

CYMBIDIUMS, MINIATURE: Status of the Descriptive

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Should the awards system recognize them? OA83-120 Read More

BLACK ROT: Leaves on Cattleyas Develop Black Spot At Top, Eventually Killing Leaf and Sheath

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use Dexon-35 or Truban, 1 tpg. as an overall drench, or soak for 20 to 30 minutes; repeat in 14 days. A72-905; A79-1112 Read More