Newly Posted Articles

LIGHT, NATURAL: Requirements

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A list of different varieties; the actual light requirements for species has hardly been determined; for other plants it has been done; for plants that grow best in full sun their leaves reach maxi... Read More

CYMBIDIUMS: Growth When Pot-bound

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Not advised; culture is more important; pot-bounding has little effect; many do well enough when pot-bound but only a few exceptions seem to benefit. A73-81 Read More

CYMBIDIUMS: Hours of Sunlight Required to Flower

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is recommended that to get them to flower they should have 1770 hours of direct sunlight. NZ86-131 Read More

INSECTS: Control in Greenhouse by Predators

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use of Lady-biEd beetles and Praying mantis claimed to be successful; refer to A69-606 Read More

HEATERS: Emergency

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Electric heater causes parching of plants; deflect the hot air stream away from plants, increase the humidity; or, try a polyethylene tube prepunched with holes. A77-619Manually operated propane bu... Read More

INSECTS: Control with "safe" Insecticides

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Leftover tobacco from cigarette butts has eliminated springtails (without regard for virus); rotenone and pyrethrum are sometimes considered harmless to warm-blooded animals; but note, this is hard... Read More

INSECTS: In Florida

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For a four-page list of arthopods (insects, arachnids) reported found on orchids, refer to DK25+ Read More

INSECTS: Resistance and Persistence

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago For reasons why insecticides become tolerated by insects, refer to OD69-309+ Read More

INSECTS: Small Flying and Leaping Insects

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A control for those found on plants left indoors during the summer: Cygon 2E, 2 tpg. as a heavy spray on medium surface. A74-595 Read More

DISEASED PLANTS: Removal of Affected Parts

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Virused plants are usually affected throughout, destroy the plant; bacteria: remove parts when the first visible symptoms appear; fungi: remove spotted leaves particularly if the spots appear on th... Read More