Category: Orchid Doctor

CYMBIDIUMS: Buds, Their Peculiar Twisting

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago When opening, petals have their edges curled inward; no sign of insects; this can be induced by high greenhouse temperatures, especially early in the morning and may be found more in the southeast ... Read More

CYMBIDIUMS: Buds, Their Sepal "clawing"

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Curling and deforming of flowers can be caused by spraying with an emulsion based concentrate such as Cygon when buds appear; use a wettable powder. A67-449 Read More

CYMBIDIUMS: Clones Wrongly Named

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cymbidiums Jean Brummitt AM/RHS, Cym. Pearl 'Magnificum', Cym. Peri 'Rogers', Cym. Trigo 'Royale', Cym. Tapestry 'Zita', among others are almost certainly breeding under false colors. OA79-124 Read More

CYMBIDIUMS: Color Control in Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Production of red pigments in the bud stage is affected by light intensity; high light causes intensity of color in pinks, pink blushing in whites, muddiness in greens; controls given for whites, i... Read More

CYMBIDIUMS: Commercial Flower Production Norms

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago One plant takes 10 sq. ft. of space including walk areas; it should produce at least 60 flowers to pay its way, or six top-quality flowers per square foot. A63-897 Read More

CYMBIDIUMS: Commercial Growing

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The energy crisis gives an impetus to the move made by growers to establish themselves along the world's 35 deg.F. line, north or south of the equator, where fuel is not required. AU76-128 Read More

CYMBIDIUMS: Compost of Live Forest Moss

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Not expected to be satisfactory over a long period; would prefer a harder and more fibrous material such as peat moss and bark, for lasting quality. A65-910 Read More

CYMBIDIUMS: Concolor or Pure Color

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Albino flowers in the non-orchid genera frequently lack vigor; concolor cymbidiums are weak growers and prone to lose growths to rot, and to lose roots in winter. A079-182 Read More

CYMBIDIUMS: Concolor or Pure-color

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago The advantages of such a flower are: it does not produce any red pigment; when pollen is removed or damage is incurred, the flowers do not turn reddish or collapse; these are assets when the flower... 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