Newly Posted Articles

HUMIDITY: How to Lower It

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago An air conditioner is needed, but plants prefer high humidity, with good air movement and with fans acting against condensation, which might favor the development of disease A67-139 Read More

DIVIDING CATTLEYAS: Minimum Number of Pseudobulbs to Keep on a Division

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Four or five give the best results. A70-55 Read More

BEGINNERS: Best Plants for South Florida

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In South Florida the first choices would be vandas, cattleyas, ascocendas and dendrobiums (evergreen or cane types) and secondly would be oncidiums (particularly equitants) and phalaenopsis. F84-147 Read More

HERBICIDES: Use in Greenhouse on Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They seem to have a cumulative residual effect harmful to the plant; use only under benches. F79-154 Read More

HOOF AND HORN MEAL: As a Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Has the same general analysis as blood meal; its odor in the greenhouse is less objectionable than blood meal; apply it one teaspoon per six-inch pot; on cymbidiums once or twice a year; now scarce... Read More

HOOF AND HORN MEAL: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Produced from hoofs and horns of cattle; ground to the consistency of coarse meal; 13% nitrogen which is slowly released to plants; never causes root burn; odorless. A78-716 Read More

LIME: Oyster Shell, Its Characteristics

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

HOT WEATHER: Treatment of Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In unusually hot summer weather the things to do to help plants : sprinkle or syringe (do not water) the leaves to reduce their temperature and increase the humidity around them; shade them more da... Read More

BREEDING: Elementary Genetics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Understanding the basis of inheritance; chromosomes, genes, gametes, DNA, etc., and how they affect hybridizing; refer to SA84Sept-lll Read More

XEROPHITIC ORCHIDS: Some Examples

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The genera include Angraecopsis, Cyrtorchis, Jumellea, Microcoelia, Rangaeris, Tridactyle and Ypsilopsis; plus Oncidium onusturn and Epidendrum boothianum. A80-1140 Read More