Category: Orchid Doctor

CRESTLITE (TRADE NAME): (trade Name) in Cymbidium Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is calcinated clay, the size of small pebbles; an industrial compound. OA79-168;-171 Read More

CRIPPLING OF FLOWERS: Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Extra set of petals formed; likely caused by external influence such as temperature in the growing area, or by pesticides; the aberration should not be permanent. F80-20 Read More

CRIPPLING OF FLOWERS: In Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago C.dowiana 'Rosita" is usually badly crippled and causes crippling in its progeny. See Orquidea (Mex.) 1976,94+ Read More

CRIPPLING OF FLOWERS: In Cattleyas; Causes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago C. Intermedioflava (C. intermedia x L. flava) produce deformed petals on 50 percent of its flowers on every clone; when crossed with Sophronitis grandiflora the same deformity showed up; is the cri... Read More

CROCK: In Plastic Pots

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is a mistake to use broken clay pots in the bottom of plastic pots for drainage; it absorbs and retains moisture and may cause root rot. A62-535 Read More

CROCK: In Pots for Drainage

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is an old-fashioned idea; no longer used by commercial growers; crock harbors snails; instead use shallower cyclamen pots and a bark-peat mix. A70-798While frequently recommended it also provide... Read More

CROWDING PLANTS: Do Not Do it

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Air circulation is very important in the growth process. OD72-227 Read More

CROWN ROT: Bacterial Disease

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Benomyl will not control it, use a bactericide and keep water out of the crowns. OIE87Jan-3 Read More

CROWN ROT: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It usually affects phalaenopsis; also called Southern blight (which see); dip plant in Natriphene. S201 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