Category: Orchid Doctor

GAS: Toxicity to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Natural gas from heaters presents no ethylene problem but manufactured gas carries it and is very toxic. A71-783 Read More

GENETICS: Of Cattleya Flower Color

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago From Mendel and Hurst to Melquist and their theories, with explanations of the various inheritance combinations; refer to F81-147 Read More

GENOTYPE: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The hidden genetic make-up; not the superficial appearance, or how the flower appears, which is called the Phenotype. NH78(1)9 Read More

GERMINATION, SYMBIOTIC: Terrestrials

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A method with formulae for raising Australian terrestrials for conservation purposes; specificity between plant and fungus, advantages of the method. WlO-269 Read More

GLASS: Greenhouse Types

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The percentages of both light transmission and wavelength are important; different pigments in the glass can cause variations and some good wavelengths of light may be screened out; it may be etche... Read More

GLOEOSPORIUM: Anthracnose-infected Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Control with spray of Maneb M-45 (now called Mancuzeb). A77-619 Read More

GLOEOSPORIUM: Gloeosporium Affine

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Leaf spot of cattleyas is universal; it forms round, dark, sharply delineated spots usually first at the tip of the leaf; spots coalesce and leaf may turn dark reddish brown; high humidity helps sp... Read More

GOLDEN VIGORO: Slow Release Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In a desert area of California from January 1 to July 15 every four weeks, four tablespoons were applied to a 12-inch tub; watered every evening on warm days. OA79-62 Read More

GONGORA GALEATA: Grows Well But Produces No Bloom

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is best grown in a hanging basket in an open medium under moderately cool conditions. A72-151 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More