Category: Orchid Doctor

CYMBIDIUM TIP BURN: Leaves

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Botrytis. sp. cause leaf tip to become spotted; the spots join up to cause tip to die; powdery masses of spores show; cut off and treat with Tersan or other fungicide. N317 Read More

CYMBIDIUMS, MINIATURE: Breeding Polyploids From Diploids

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Examples of rarities, with names, and its significance; refer to OA77-130+ Read More

CYMBIDIUMS, MINIATURE: Definition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Any hybrid with at least one dwarf species as a parent or in its immediate background. OA79-52 Read More

CYMBIDIUMS, MINIATURE: Different Degrees

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Primary hybrids: small pot plants, usually a cross between Cym. pumilum and a regular diploid; Second generation, a cross between a Primary hybrid and a regular diploid; and, Polymins, a cross betw... Read More

CYMBIDIUMS, MINIATURE: Early Breeding Results

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago List of first to third generations with six species; refer to A70-100+; AU70-28+ Read More

CYMBIDIUMS, MINIATURE: Flower Size

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Judges in New Zealand settle on a maximum diameter of three inches for miniature and novelty types, with a penalty for coarse foliage. OA79-125Measurement for jumbo miniatures is over three inches ... Read More

CYMBIDIUMS, MINIATURE: Lowest Temperatures Tolerated

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In fall and winter 45 deg.F. will not harm them; later in winter 55 deg.F. until many flowers are open; then up to 60 deg.F, to lessen flower spotting. A72-686; A80-739 Read More

CYMBIDIUMS, MINIATURE: Meaning

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago This designation refers to the flower size not the foliage, as in Japan. OIE88Jan-9 Read More

CYMBIDIUMS, MINIATURE: Species Used in Their Hybridizing

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A list of eleven with characteristics, progeny, etc., refer to OD85-238 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