Newly Posted Articles

LEAVES: On Vandas Turn Yellow and Drop

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Repot the plant in loose medium dampen it and place in a plastic bag in indirect light. A75-35 Read More

LEAVES: On Phalaenopsis Have Thin Marginal Edge with No Chlorophyll and Some Turn Blackish

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cause not known; may be due to excess salts in the water, or accumulated in the medium. A75-298 Read More

BARK, REDWOOD: Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Shredded bark used as insulation material and sold as Palco Wool was treated with fire-retardant ammonium phosphate which caused remarkable growth of plants. A87-1041 Read More

LEAVES: Removal Time

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Do not cut them off until they dry and shrivel and are ready to fall. A76-115 Read More

LEAVES: Samples Sent by Mail for Inspection

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Do not wrap them in Saran or polyethylene but in a single fold of waxed paper. A71-439 Read More

CYMBIDIUMS: Die-back of Labellum

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Very cold nights cause tips to die back in certain hybrids. AU78-143 Read More

PH (GENERAL): Of Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A pH8 to 9 of the 30-10-10 fertilizer is natural and should not be adjusted because the alkaline state changes to the acidic side when used by the plant. A81-27 Read More

CONSERVATION: Opinions and Facts

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago At the international level, refer to A86-242; OR86-56;123; effective long-term prospects discussed at length; approaches that might be taken to conserve orchids; artificial selection, etc.; refer t... Read More

FERTILIZERS: Mixed with Pesticides

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Mixture of Benlate, Cygon and fertilizer is not recommended; don't do it. A73-503 Read More

BENLATE: On Paphiopedilums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Caused production of infertile pollen. A79-898 Read More