Newly Posted Articles

DENDROBIUM PHALAENOPSIS: The Gatton Way to Get Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Get them into vigorous growth in February; feed and grow until August with regular fertilizer; in August change to good potash fertilizer; reduce temperature ten to 15 degrees F. at same time for s... Read More

VIRUS: Modes of Transmission

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago By insects, mostly aphids and leaf- hoppers, grasshoppers and beetles; seed and pollen are less common transmitters; meristerns almost always carry virus if the parent was infected; mechani cal tra... Read More

VIRUS: Control of Hand Transmission

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use cheap plastic gloves; or wash the hands thoroughly with soap and water after each handling of a plant or materials. A83-600 Read More

VIRUS IN PLANTS NAMED: Odontoglossum Ring-spot Virus

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Characteristics = it is limited mainly to Onc. (Rossioglossum) grande; causes leaf symptoms first as necrotic spots, enlarging to form necrotic rings; leaves turn yellow, drop prematurely; no flowe... Read More

HEATERS: Quartz Electric Type

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is satisfactory for greenhouse use but perhaps is not adequate because it affects plants only in its pathway and costs more. A81-1093 Read More

HERBICIDES: Use in Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On floors, use Karmex DW liberally on the soil, or Princep 80W. A79-910; F79-154 Read More

WETTING AGENTS: Tectronic 1508

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Its nature; tests with over 200 plants, preparation and applications for volume use; refer to A82-507 Read More

VIRUS: Problems with Stud Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Disease is transmitted to the seed through the pollen except in the case of Phalaenopsis, if the seed is removed carefully from the virused pod; virused plants always pose a threat to the virus-fre... Read More

VIRUS: Sanitation

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Heat is the safest method and the most effective, place all tools in an oven at 300 dF for one hour; propane torches are good if blades are first dipped in alcohol before flaming; liquid inactivati... Read More

WOOD WOOL: "excelsior" as a Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Two cattleyas planted in it grew satisfactorily and flowered twice in three years, and grew larger than before; it lasts for two years and does not seem to rot. OR69-97 Read More