Newly Posted Articles

VENTILATION: With Solar Energy

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A solar chimney draws air vertically out of the greenhouse without machinery; build a flue out of three/eighths inch exterior plywood; for diagram, materials, method of operation; refer to OD88-30 Read More

VENTILATORS: Non Electric

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Self-automated ventilator units are moved by a heat-expandible mechanism, they need no electricity and are useful in case of electricity failure; some growers use them only. Ca85(l)-10 Read More

CATTLEYAS: Tetraploids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Can be identified by the thick succulence of their leaves and their sharp edges. ODA78(1)23 Read More

CATTLEYAS: Two-month Old Sheaths Do Not Produce

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is not abnormal, some species mature their growths months before flowering; growers can make use of lights to extend "length of day" to slow flowering time after sheaths are made up; 75 to 95 da... Read More

CHARCOAL: Properties

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Investigation of cationic exchange capacity; retention of nutrients; bacterial activity; high water holding capacity; and a high bacteria activity; feed organic type fertilizers to it; lasts foreve... Read More

CHEMICALS: New Products

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Insecticides and pesticides are becoming more effective and rules and regulations are required to control them; Subdue, a fungicide and Aliette can be purchased over the counter in Florida but an a... Read More

FUNGUS: Spot Treatment

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use a paste made of Captan powder and a solution of Physan (1/2 teaspoon in 1/3 gallon of water) and apply it to the affected areas with Q-tips. OD87-154 Read More

CHLOROMYCETIN: For Pseudomonas Infections

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It's a powder available in capsules and is usually sold by veterinarians; open the capsule and apply the contents to the cut edges of the plant. OD87-155 Read More

CHROMOSOME NUMBERS: Dendrobiums At Kew

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 62 species recently acquired from Papua-New Guinea; refer to the list, A85-1122; for miscellaneous species, refer to A85-1235 Read More

CHROMOSOME NUMBERS: For Bulbophyllums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 55 species at Kew listed with origin and 2n. A85-190 Read More