Newly Posted Articles

CATTLEYAS, BIFOLIATES: Culture of Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago When moved to single pots they differ from those in community pots by requiring slightly cooler temperatures, slightly brighter light and slightly less moisture. A87-615 Read More

CHIPMUNKS: Destroyer of Oncidium Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Onc. pulchellum, Onc. ornithorhynchum, Onc.triquetrum, Onc. Twinkle, Capenemia uliginosa all had flowers stripped and eaten. ODA70-23 Read More

CHLORDANE: Toxicity Reactions in Humans

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Nervousness, tremor, dizziness, convulsions. A68-583 Read More

COLOR BREAK: Virus Induced in Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cymbidium mosaic virus does not cause color-breaking; tobacco mosaic virus orchid strain induces it; illus. of infected flowers; diagrammatic plant with locations of virus. A70-395; BU57; OD71-199;... Read More

COLORS OF FLOWERS: "Art Shades" Meaning

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Usually anything that has unusual colors or combination of colors; in cattleyas it means anything almost, not plain purple or white. A84-473 Read More

COMPATIBILITY AND INCOMPATIBILITY: Breeding in the Oncidium Alliance

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Self-incompatibility is common, up to 68%; test included 32 oncidiums, 2 brassias, 1 miltonia, 1 odontoglossum and 1 rodriguezia, NH77(3)12+ Read More

VIRUS: Control by Chemicals

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The use of household bleach is recommended in concentrations varying from 20% upward to full strength, timed from 30 seconds to 10 minutes; refer to A82-725 Read More

WATERING METHODS: Overhead

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Why does it not cause crown rot in phalaenopsis?; water only on warm, clear days and with good air movement and ventilation; if crown rot does occur do not use Benlate, better use Physan 20, or Nat... Read More

CYMBIDIUMS: Differ From Odontoglossums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They can be grown in the same cool house, but cymbidiums prefer 48 dF (9 dC), low winter nights and Odonts prefer a couple of degrees higher; cyms need more light therefore benefit from outdoors tr... Read More

XEROPHITIC ORCHIDS: Some Examples

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The genera include Angraecopsis, Cyrtorchis, Jumellea, Microcoelia, Rangaeris, Tridactyle and Ypsilopsis; plus Oncidium onusturn and Epidendrum boothianum. A80-1140 Read More