Newly Posted Articles

BARK, REDWOOD: Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 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

APOMIXIS: In Some Genera

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago In breeding they overcome the genetic make-up of other genera and produce off-spring like themselves; ansellias do this sometimes, zygopetalums do it most of the time. SA0J84June-53 Read More

MEALYBUGS: Methylated Spirits as Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Use a small brush to paint inside the sheaths of young shoots; if sheaths are sensitive wash with water after. ORBS-161 Read More

PH (GENERAL): Of Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 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

TEMPERATURE: Controlled

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Cold nights artificially supplied substitute for the real thing for some genera; cymbidiums, odontoglossums and some dendrobiums can be set inside a refrigerator at night for a time to set buds. A6... Read More

TAN BARK: As Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago It is used in Australia; a local wattle-tree bark after it has been through the tanning process. A75-713 Read More

ROCKWOOL: With Perlite as Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago A two year commercial experiment growing in a mix of water-repellent rockwool and perlite, with trial balances of nutrients and trace elements was termed a success; advt. A87-Jy-xiv Read More

ROCKY HABITATS: In Thailand

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago A type of growing area that often supports a destinctive type of plant; a list of 29 showing their preferences for limestone or sandstone or granite; refer to W9-280 Read More

ROOF COVERING: For Growing Area

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago In Tampa, Florida, a plastic such as Lascolite, with 95% light transmission is too high for the area; consider an opal or white fiberglass; or use sufficient shading. A74-595 Read More

BENLATE: On Paphiopedilums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 9 years ago Caused production of infertile pollen. A79-898 Read More