Newly Posted Articles

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

POTS (GENERAL): Clay or Plastic

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For growing odontoglossums success and failure were achieved equally with both kinds. A76-427 Read More

NICOTINE: Toxicity Reactions in Humans

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Irritation of the nose and throat, nausea, vomiting, diarrhea, stomach ache, headache, dizziness, confusion, weakness, incoordination, tremors, paralysis, convulsions, rapid death; extremely danger... Read More

TRACE ELEMENTS: Boron, Copper, Iron, Manganese and Zinc

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They need a slightly acid reaction in the compost for assimilation by the plants; copper and zinc are available in alkali; they readily chelate, which happens when an organic molecule envelops them... Read More

TRISODIUM (ORTHO) PHOSPHATE: A Safe Disinfectant, Easily Obtainable

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For virus control; not as fast or as effective as some others, but is the least expensive and well recommended; refer to A66-980; A68-29+; also sold as Spik and Span. OA77-177; soak tools in a 15%,... Read More

ULTRAVIOLET HEAT LAMPS: Used as a Heat Lamp in the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use it only if the light, which is toxic to plants, is shielded from them. A68-524 used for varying lengths of time = the wave-length of u.v. is harmful to plants; short periods have no effect; kin... Read More

VAPONA FUMES: The Safest Insecticide, Against Scale

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Shell No-Pest strips were formulated for use in the home; vapona can be volatilized one fl.oz. of the 41-43% material per 10,000 cu.ft. of greenhouse space; it does not accumulate in mammals; Cygon... Read More

VIRUS - CYMBIDIUM MOSAIC: Meristemming to Eliminate Cymbidium Mosaic Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Careful selection of the portion of the meristem selected for propagation may result in virus-free tissue; the seed should be virus-free. A70-148 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

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