Category: Orchid Doctor

RANGAERIS: A Problem Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Browning of the flowers follows their opening possibly caused by oxidation of phenols (which for some reason are being released into the tissues) to quinones; similar to the browning of a cut apple... Read More

RATS: In a Cymbidium Shade House

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They attacked the new growths especially, but a few whole plants were eaten. OA84-49 Read More

RAZOR BLADES: For Cutting Plant Tissue

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To avoid spreading virus, use one blade then throw it away; buy them in boxes of 100 at a paint supply store; if you are reluctant to junk them, put them in the oven for a bake for some hours te st... Read More

RECIPROCAL CROSSES: Different Results

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The pod parent produces di fferences because cellular location of the genes in three plant structures, the chromosomes, the mitochondrion and the plas tid, all complex features which are inherited ... Read More

REDWOOD BARK: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is very acid; prevents fungi from growing; more nutrients become available in slightly acid medium rather than in alkaline. F72-136 Read More

REDWOOD BARK: Characteristics and Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Available in seedling grind (three-eighths inch), regular grind (three-quarters inch) medium chips (one inch by half-inch), and large chips ( two inch by one and a half inch); soak it five minutes ... Read More

REDWOOD BARK: Chips

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They are high in acidity; when added to potting mixes they lower the acidity and prevent white mold from growing; the lower acidity also helps to increase the availability of nutrients. F74-165 Read More

REDWOOD: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago There is no evidence of toxicity derived from it; it is used for greenhouse construction and as an ingredient in potting mixes as bark chips or shredded bark, also known as Palco Wool; very acid, k... Read More

REFLASKING: An Easy Way

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Thirty days after the initial flasking the protocorms can be transplanted; for directions and technique, refer to A66-729+ Read More

REFLECTIVE MATERIALS: Best for the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use reflective aluminum foil, available from distributors in a handy 16 inch width; or,paint the surfaces white. A80-960 Read More