Category: Cattleya Alliance

Orchid doctor

CATTLEYAS: Anther Discoloration

Posted by Sys Admin almost 3 years ago Black; in a florist's cooler it spreads to underside of column and throat; occurs when they are lighted to delay flowering in growing; if not that, it may be due to a fungus as in cymbidiums; lower... Read More
Orchid doctor

CATTLEYAS: Bifoliate Species in Breeding

Posted by Sys Admin almost 3 years ago Yellow, orange, red and green hybrids as derived from C. aclandiae, aurantiaca, bicolor, forbesii, granulosa, leopoldii (guttata), schillerana, and velutina; refer to OD74-5+ Read More
Orchid doctor

CATTLEYAS: Brown Striations and Cracks Show in Pseudobulbs

Posted by Sys Admin almost 3 years ago These curious striations are abcission zones which produce cracks; cause is not known nor is a cure; apparently not pathological. A66-311; AH59 Read More
Orchid doctor

CATTLEYAS: Control of Blooming Time

Posted by Sys Admin almost 3 years ago Flowering control must be started before buds are initiated. A69-524 Read More
Orchid doctor

CATTLEYAS: Control of Flowering

Posted by Sys Admin almost 3 years ago Use of lights in speeding up growth at different temperatures, to maintain flowering every six months; refer to A59-163+ Read More
Orchid doctor

CATTLEYAS: Cracking of Pseudobulbs Horizontally

Posted by Sys Admin almost 3 years ago Some break off at the crack line; they develop year after year; possibly genetic in source; treatment for nutrient deficiency has not been effective. AH59 Read More
Orchid doctor

CATTLEYAS: Fertilizing Program

Posted by Sys Admin almost 3 years ago High nitrogen 30-10-10 or 10-10-10 is good for period March to October at 1 tpg every 10 or 14 days; from November to February apply every 21 to 28 days; for every fourth feeding all year long use ... Read More
Orchid doctor

CATTLEYAS: Flared Petals

Posted by Sys Admin almost 3 years ago Flaring is a rather unstable characteristic which varies from one blooming to another; it is known as peloria; the Lc's. stem from Laelia purpurata; the straight cattleyas from C. intermedia, espec... Read More
Orchid doctor

CATTLEYAS: Flowers "sooting"

Posted by Sys Admin almost 3 years ago May be flyspeck (microthyriella) or leaf-spot (Phyflos tictina pyriformis); use Benlate 1 ttpg.; use also more ventilation. A79-124 Read More
Orchid doctor

CATTLEYAS: Minimum Optimums

Posted by Sys Admin almost 3 years ago For spring flowering: 55 deg.F.nights, 50% relative humidity, 4,000 fc.in summer and 2,000 fc. in winter; Autumn flowering plants need 50 deg.F nights; 40 to 50% relative humidity, 2,000 fc. in win... Read More

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