Newly Posted Articles

FLASKING FORMULAS: And Nutrient Solutions

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago For an extensive list of formulas and their component chemicals or substances, refer to W1-589+ Read More

BARK IN POTS: Laced with White Thread-like Fungus

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago A common wood-rotting fungus; may check growth if not fertilized well with nitrogen. A71-249 Read More

FLASKING FORMULAS: Curtis Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago For germination of Epipactis seeds; chemical components and application, refer to A82-168; OBII-243 Read More

FLASKING FORMULAS: For Orchid Seed Germination

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Instant solutions for dendrobium, cattleya, cymbidium, paphiopedilum, developed by scientists at Kyoto University using Hyponex, sugar, agar, water, apple juice, etc.; refer to A63-354+ Read More

FLASKING FORMULAS: Knudson-c Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Monopotassium phosphate 0.25gm., calcium nitrate 1.00 gm., ammonium sulphate 0.50 gm., magnesium sulphate 0.25 gm., ferrous sulphate 0.025gm., manganese sulphate 0.0075 gm., agar 17.5 gm., sucrose ... Read More

FLASKING: Reflasking Alternative

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Use a 2-liter plastic pop bottle; heat the bottom stand in hot water to soften the adhesive and pull it off, cut off the top section of the pop bottle and invert it into the stand portion to form a... Read More

BLACK ROT: Water Mold Pythium Ultimum Is the Cause

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago The special enemy of commumity pots of seedlings; damp-off; spray with Physan, Anti-Damp, or Natriphene once a month as preventive; on mature plants cut out rot; soak plant in good fungicide, dry, ... Read More

INJECTORS, SYPHON: Devices for Injecting Phosphoric or Citric Acid Into the Water Line

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Two recommended are Hydromix and Syphonex, both illustrated. A73-55 Read More

PH (GENERAL): Testing by a Cheap Method

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Buy an aquarium test kit, complete with test tube, color code; it is accurate to one-tenth of a pH point; and an indicator; cost is about a dollar (in 1969); test media or water. A69-403 Read More

LIGHTS, GROWING UNDER: Problems Associated with Growing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago For weakness of growth and failure to flower and related problems refer to AH45 Read More