Newly Posted Articles

CORK SLABS: Plants That Like it

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Include Cattleya skinneri, C. forbesii, which thrive on it, Schomburgkias grow well on it but their spikes get very long, Oncidium maculaturn grows easily on it as it does on other things, however,... Read More

VIRUS: Groups and Methods of Transmission

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago As defined by the Intenational Committee for the Taxonomy of Virus, and showing those that infect: orchids and their insects of transmission; list of names of orchid viruses. A84-507 Read More

VIRUS: How to Detect It

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago A diagnostic technique developed to detect Cymbidium Mosaic and Odontoglossum Ringspot, the double radial diffusion test with antibodies produced by immunizing animals, usually rabbits;refer to A83... Read More

VIRUS: In the Wild

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Cypripedium acaule -- in the woods in Manitoba was found to have symptoms which were identified as virus by Plant Science personnel. CA84(2)-19 Read More

VIRUS: Incidence

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Table showing frequency of infection of about 2 0 genera by CMV and ORS and related to length of time in cultiva- tion; refer to W10-281 Read More

VIRUS: Indicator Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Five plants listed with details ; refer to AH86-15; seed for Gomphrena globosa and Cassia occidentalis can be purchased from suppliers; address given. A86-251; six plants listed, with details of us... Read More

VIRUS: Interferon Seen as Inhibitor

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Minute amounts sprayed on a plant can stop a virus infection in an hour, is harmle s s to plants and humans; scientists are experimenting. CA84(3)-19; AU84,Sept. Read More

CORK TILES: Pressed, Commercial Sheets

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Can be used as mounts for equitant oncidiums; cut in strips 2" by 12", and place four plants on each strip with a thin pad of sheet moss or coconut fiber and tied with bits of nylon stocking. A86-677 Read More

CRIPPLING OF FLOWERS: In Cattleyas; Causes

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago C. Intermedioflava (C. intermedia x L. flava) produce deformed petals on 50 percent of its flowers on every clone; when crossed with Sophronitis grandiflora the same deformity showed up; is the cri... Read More

GREENHOUSES: Coverings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Heat loss per BTU per sq. ft. per hour at zero degrees F. is: glass -- 1.13; doubled glass -- 0.65; triple glass -- 0.47; PVC -- 0.92; Fiberglass -- 1.00; Acrylic (Plexiglass) -- 1.00; Acrylic doub... Read More