Newly Posted Articles

HEATING CABLES: Use for

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Try growing mature Doritaenopsis and Phalaenopsis in the greenhouse on one for better performance; it should be linked to a thermostat control. OIE85Jy-15; RMH Read More

PH OF WATER: Recommended

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A satisfactory analysis for Somerville,N.J. is a pH of 7.2; it has a water supply like most of N.J.; some supplies are high in soluble salts; 8.4 in North Brunswick,N.J. is good despite the high pH... Read More

MOUNTS: Wooden, for Mounting Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Prepare the piece by cleaning the branch; spray with Cygon 2E, Diazinon or Malathion; leave to dry before attaching plant. A77-449 Read More

PESTICIDES: Shelf Life

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They should be purchased for short-term use; mark the date of purchase on the container; most keep their effectiveness for two or more years if stpred properly; signs of ineffectiveness in dusts an... Read More

MOUNTS: Watering

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Do it thoroughly; water runs off them easily and wets only superficially; evaporation is rapid and salt build-up is a good possibility. A74-772 Read More

BARKS, SUITABLE: Other Than Douglas Fir

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Silver birch, the rough part from the base of the tree; it is heavily crevassed with many a lay er of dead cells to decompose; also chestnut, pear and apple. N79-163 Read More

CITRIC ACID: Plus Nutrient for Watering

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Accurate proportioning of both is essential; determine pH of water supply, if above 6.0 adjustment is optional; achieve about pH of 5.0 to 5.4, plus approximately 146 ppm. of nitrogen for mature pl... Read More

REFLECTIVE MATERIALS: On Greenhouse Walls to Increase Light

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Aluminum foil, spectral aluminum, or spectral Mylar have been used; they do increase the amount of light available to the plants; white paint is also recommended; aluminum foil can act as a collect... Read More

MOUNTS: Advisability of Using

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Every one of your plants should be mounted if space allows; place the plant in an empty pot where it gets only humidity until its roots break out,then place it on cork bark, or locust bark, or sass... Read More

MOUNTS: Advantages

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago After much experimentation cork bark was preferred for a large collection in California for the following: small cattleyas, dendrobiums, oncidiums, coelogynes and barkerias; much cultural advice th... Read More