Newly Posted Articles

FLUORESCENT LIGHTS: Wattage Per Square Foot

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Tubes 12 inches above the leaves provided 20 watts, barely enough to satisfy phalaenopsis; six tubes arranged in a dome shape supplied 30 watts; a VHO-fixture having the intensity of three normal t... Read More

FOLIAR FEEDING: Through Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Foliar applications of nutrients can cause salt build-up on leaf surfaces; this supports algae growth; wash off the salt. F79-117 Read More

FUNGICIDES: Broad-spectrum

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Benlate (benomyl) or Banrot are best. A76-206 Read More

FUNGUS: Black, Sooty on Cymbidium Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It grows on the "honey dew" secreted by mealy bugs and will wash off. A63-641 Read More

AIR SPACE: For Insulation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Ideally, the air space between two covers should be approximately one and a half inches thick; spaces of three-quarters to eight inches are used; below three-quarters inch the effectiveness is rapi... Read More

HEAT COLLECTORS: For Greenhouses

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Heat near the roof is up to 15 dF warmer, and can be returned to the floor area continually by means of installed collectors run by electricity to save from 10% to 20%, of fuel costs; they also low... Read More

HABITATS: Rain Forest or Cloud Forest

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The lack of precise definition of these terms; the preferred definitions for conditions in Venzuela stated; their importance and significance as orchid growing areas; sources for specific types; re... Read More

INSECTICIDES: Expensive Little Packages

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The smallest available package of Mesurol WP which is frequently recommended, is 1,5Kg at the price of NZ$124.00. NZ86-193 Read More

HORMONES: To Produce Small Numbers of Mericlones of Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Hormonal preparations involving application of a cytokenin, which acts as a cell-divider; a commercial paste is sold as Keikigrow; refer to A80-1123 Read More

HYDROPONICS: Growing Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Granite chips and polystyrene used as media; nitrates of potash, phosphorous, calcium and magnesium used in solution; plants in pots stand in troughs of nutrient solution; refer to OR70-353Porous r... Read More