Newly Posted Articles

WHEELER COLLECTION: The Orchid Collection and Species Bank

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago At Ball State University, Muncie Indiana; aims and description; refer to Ca82(7)-16 Read More

MUTATIONS: In Mericlones

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago They can occur; in cattleyas only at an incidental rate. F77-115; for scientific data, refer to OB1-179+ Read More

WETTING AGENTS: Soap

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago A mild household soap or detergent can be added at the rate of 1tpg. to pesticides solutions. RMH Read More

WILSON'S ANTI-DAMP: For Damping-off Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Very effective; the chemical name for it is Oxyquinoline benzoate. P71(3)-21; not available today.OWD Read More

WINDOW GREENHOUSE: Construction and Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Installation; summer heat problems and their control; use of humidity tray; use of plastic cover in winter to save heat; plants listed for full sun treatment, and for shade conditions; refer to ODA... Read More

DITHIO SMOKES: Also Known as Dithione, Thiotepp or Sulfotepp

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago An organophosphorous compound highly toxic to man; but smoke generator use can be safe and convenient in greenhouses; use in late afternoon or evening; post warnings on greenhouse doors; lock them ... Read More

EPSOM SALTS (MAGNESIUM SULFATE): Added to Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It is not necessary; enough magnesium occurs in most water supplies; many fertilizers have magnesium; for a trial use 1 teaspoon in five gals. of water. A68-I059; A69-700; A73-914 Read More

PESTICIDES: Safe Use of Dangerous Materials

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago For a long list of the do 1 s and don'ts refer to AU87(3)-45 Read More

CRIPPLING OF FLOWERS: In Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago C.dowiana 'Rosita" is usually badly crippled and causes crippling in its progeny. See Orquidea (Mex.) 1976,94+ Read More

VIRUS - CYMBIDIUM MOSAIC: Virulence on Tools and Pots

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Cymbidium Mosaic Virus is virulent on pots for more than a year. A66-926 Read More