Category: Orchid Doctor

CALCIUM: Functions as Fertilizer

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Occurs in plants as calcium pectate; cements cells together; moves various compounds within the plant; enhances root development; is relatively immobile so a continuous supply is necessary. AU75-47 Read More

CALCIUM: Supplying a Necessary Element

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Calcium hydroxide is the most suitable source, at 50 to 200 ppm., or one gram of Hydrated lime to 10 litres of water, or 2.25 grams per 5 gallons of water; refer to AU84-97 Read More

CAPILLARY WATERING: Method and Results

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On a sand bed kept wet to within two inches below surface place plants without drainage crocks so that moisture is drawn into the pot by capillary action; test was successful with 100 paphiopedilum... Read More

CAPSULES: Harvesting

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Number of days required for maturation of seed: Aerides, 125-160; Brassavola 90-100; Broughtonia 30-45; Catasetum 150-180; Cattleya (bifoliate) 90; Cattleya (unifoliate) 120-134; Dend. nobiles 90-1... Read More

CAPSULES: Number Possibly Borne by One Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A strong plant capable of supporting capsules can have more than one cross at the same time; the maximum would vary with the strength of the plant. A85-611 Read More

CAPSULES: Sterilization

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Wash them in soap and water or scrub them in the same, rinse and submerge in a 50% solution of bleach for 12 minutes; rinse again; if the capsule was intact the seed should have been sterile inside... Read More

CAPTAN 50%WP: Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Has good residual action; spray at 1.5 ttpg. weekly; LD50 of 9,000 mg. is moderately safe. A71-894 Read More

CAPTAN 50%WP: Toxicity Reactions in Humans

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Diarrhea and weight loss. A68-583 Read More

CAPTAN: A Popular Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Has LD50 of 3,000 or more; use it as a spray; it can injure flowers. A73-811 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