Category: Orchid Doctor

ODONTOGLOSSUMS: Propagation by Backbulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is a difficult process; try severing the backbulbs, making one cut between them and the forward group about a year before the plant is actually divided. A57-788 Read More

ODONTOGLOSSUMS: Propagation by Pseudobulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use two or three as a unit to be successful; dust the cut with sulphur or a sealing compound; place in plastic bag with damp sphagnum until roots show. AU76-76 Read More

ODONTOGLOSSUMS: Repotting Time

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Contrary to the general rule and practice, the best time to repot is in September. OR75-44Do it only when new growth is three to six inches high, which is when the hew root system becomes active; t... Read More

ODONTOGLOSSUMS: Splitting Pseudobulbs

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago When the outer layers of the bulb mature prematurely, cracks suddenly appear and clear, gummy fluid exudes; this can arise from excess of sunshine or/and a surfeit of potash. OR76-184 Read More

ODONTOGLOSSUMS: Watering

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Water heavily all year round; give them as much or more in winter. A76-427 Read More

OEDEMA: Blistering

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago On cattleya leaves, small raised hard nubby features rise, especially on the backside of the leaf with a corresponding front-side depression, caused when cells take up more water than needed, then ... Read More

OFF MIX: Composition

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 57% fir bark, 32% coarse peat (poultry grade), 5% Palco wool (redwood fiber), 6% Perlite (coarse); to each 10 cu.ft. add 4 lbs. bone meal, 1/2 lb. superphosphate, 1/4 lb. Ureaform nitrogen and 1.5 ... Read More

OFF MIX: Composition, Altered

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 7 pts. fir bark medium size, 1 pt. coarse German peat, 1 pt. Palco wool; to each cu.ft. add: 3 lbs. pulverized limestone, 1 lb. single superphosphate, 1/2 lb. processed tankage, 1/2 lb. of 5-10-5 f... Read More

OFF MIX: Composition, Modified

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago 1 pts. fir bark, 1 pt. Perlite, 1 pt. German poultry peat, 1 pt. shredded Palco wool. ODA75(l) 24The 7-1-1-1 mix: 7 pts. fir bark medium grind, 1 pt. each of coarse peat moss, redwood bark regular ... Read More

OHIO W.P.SOLUTION: Fertilizer Used Experimentally in Gravel Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For proportions of seven chemicals included, refer to N304 Read More