Newly Posted Articles

VIRUS IN PLANTS NAMED: In Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidium mosaic virus; necrotic ringspot; diamond mottle; bar mottle; odontoglossum ringspot; for notes on identification, etc., refer to N323+ Read More

VIRUS: Detection and Diagnosis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The technical process with a light microscope; refer to A86-996; principle and applications used; indicator plants and electron microscopy; light microscopy serology; necessary equipment; incidence... Read More

TISSUE CULTURE: Advantages

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It has increased the range of choice at the high quality level; but phalaenopsis mericlones take two to three times as long to mature and some never do; paphiopedilum explants produce short-lived c... Read More

TURKEY GRAVEL (GRIT): Granite Chips

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Comes in several sizes; an additive to poultry feed; Calcite #2. A75-27 Read More

VITAMINS: Useful to Orchids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Fungi provide niacin (nicotinic acid) which enhances the growth of seedlings; folic acid (a water-soluble vitamin) and thiamine (vitamin B/l) also stimulate growth; four combinations cited; refer t... Read More

WATER (GENERAL): Heating in the Greenhouse Ceiling

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Fifty feet of copper line painted black absorbs heat in the water which feeds both the greenhouse and the home supply, requiring less energy to bring it up to the required temperature. OIE88Mar-9 Read More

WATER SOFTENERS: Simple and Economical Solution

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Bicarbonate hardness is eliminated by a "weak acid" ion exchange resin, a commercial process marketed as a Duolite C-4338 Tank; for particulars refer to A85-334 Read More

WATERING METHODS: Converted Washing-machine

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago An old style top-loading automatic washer is required; strip it to the motor and tub; directions given for adapting fittings and valves; arranged to provide pressure feed for water and/or fertilize... Read More

WATERING METHODS: Individual Tube System

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is satisfactory, but one problem is the localized or concentrated flow of water. A76-14 Read More

WOOD TREATMENTS: Anti-rot Treatment for Greenhouses Which Are Not Harmful to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Copper napthanate preparation sold under the names of Cuprinol or Kopex is the best. A77-619 Read More