Newly Posted Articles

POTTING: Delayed

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is harmful to plants to delay re-potting; more harm is done to cattleyas than to cymbidiums by leaving them in the pot for extra years. A67-713 Read More

POTTING MEDIA: Acidity Test

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use litmus paper and test the pH of the water as it runs out of the bottom of the pot. ODA76(1)-30 Read More

POTTING MEDIA: An Excellent Test Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago This choice was for a 50/50 mix of coarse fir bark and coarse peanut shells. AU84-202 Read More

CLOROX: For Pot Rinse

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago 1 pt. Clorox to 4 pts. water; clean pots well before soaking 1/2 hour in the solution; then wash, dry thoroughly, and rinse before use. A76-507; F77-16 Read More

WOOD TREATMENTS: For Greenhouse Construction of Wood

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Oil-borne preservatives are: creosote, pentachlorophenol and copper napthanate; the first two cause injury to plants with their fumes; water-borne treatments are: chromated zinc chloride, chromated... Read More

BENLATE: A Systemic Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago (Benomyl) Benlate 50WP can be sprayed 3 times at two-week intervals to control most fungal diseases; thereafter monthly. A77-905Has an LD50 of 9590 and is safe for many species; controls botrytis, ... Read More

CLOROX: For Sterilizing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Used pots, stakes, labels, all can be soaked in Clorox at 1:10 water; rinse thoroughly and dry before reuse; change Clorox frequently. A67-1001;. A73-334 Read More

CLOROX: For Sterilizing Tools

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Soak the tools for five to ten minutes in a 5% solution. A80-110 Read More

LIME: Oyster Shell, Its Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is calcium carbonate lime; ground up shells comes in coarse type for chicken scratch or flour type used by many orchid growers. C74-51 Read More

XEROPHITIC ORCHIDS: Some Examples

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The genera include Angraecopsis, Cyrtorchis, Jumellea, Microcoelia, Rangaeris, Tridactyle and Ypsilopsis; plus Oncidium onusturn and Epidendrum boothianum. A80-1140 Read More