Category: Ailments

PHALAENOPSIS: Bud Blast Caused by Unvented Propane Heater

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Incompletely combusted gas could affect plants, which are susceptible to gas; check the burners. A85-872 Read More

CAPTAN 50%WP: Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Has good residual action; spray at 1.5 ttpg. weekly; LD50 of 9,000 mg. is moderately safe. A71-894 Read More

CAPTAN: A Popular Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Has LD50 of 3,000 or more; use it as a spray; it can injure flowers. A73-811 Read More

CAPTAN: Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago This has been banned in Australia. AU87Winter-16 Read More

COLD PROTECTION: In Sudden Cold Spells

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In Florida plants grown in the open can can be moved to a closed area; if the forecast is for 40 deg.F. or lower, move them into a glass house or into the home, or cover with polyethylene; turn on ... Read More

SLUGS AND SNAILS: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Both feed on buds and flowers, bush snails feed on other parts of plants also; use metaldehyde baits in combination with Sevin, Mesurol, Zectran, or Zectran sprays or drenches three times 10 to 14 ... Read More

ALLERGIES: And Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Because the plants are not wind-pollinated their pollen is non-allergenic to humans; but some scents can affect people in other ways: Cochleanthes discolor produces eucalyptol which smells like Lis... Read More

FREEZING: Counteractions to Take

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If the temperature falls to lower than 20 degrees F., cymbidiums will not recover so attemps to revive them are hopeless. A85-726 Read More

FREEZING: Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Remove tops of frozen leaves and return to good culture; give less fertilizer depending on amount of leaf loss. A75-298 Read More

APHIDS: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They feed on buds and flowers, are common on cymbidiums; winged forms can reinfest continually so systemic insecticides which last a month are preferred; use dimethoate (Cygon), Meta-systox and Tem... Read More