Newly Posted Articles

ELECTRIC CONDUCTIVITY: For Early-flowering Cymbidiums Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In April, May during flower-bud induction have an E.G. of 0.3; in July-August and continuing into the flowering period an E.G. of 0.8 with an increase in potassium recommended from August on. OA87-200 Read More

ELECTRIC CONDUCTIVITY: For Late Flowering Cymbidium Culture

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago In April-May an E.G. of 0.6 to 0.8; from end of July to early August an E.G. of 0.3, possibly a few weeks without fertilization; from August (end) to November an E.G. of 0.6 to 0.8 with potassium i... Read More

MERICLONES: Value as Stud Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Meristem-propagated plants have the same chromosome and breeding characteristics as normal plants. A67-233 Read More

MERICLONES: Why They Differ

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago When the meristematic plant tissue is cut, some cells are cut through and most of those die but a few recover and may produce abnormal incomplete plantlets; as orchids are complex, more can go wron... Read More

ROOTS: Treatment When Repotting

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Do not severely cut back healthy old roots because they continue to function and provide physical anchorage. F80-20 Read More

METHYL BROMIDE: Used to Sterilize Osmunda with Weed Seeds in It

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Use a 50 gal. steel drum with an air-tight lid; place the osmunda in it and add one pound of methyl bromide, observing all precautions; seal for 48 hours; open and led the odor disappear before usi... Read More

FUNGICIDES: Effective

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The most effective is Benlate. A76-698 Read More

BOTRYTIS: Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A condition of high humidity over twelve hours causes the spores to sprout and causes death of cells; it sporulates off dying or dead organic matter; maintain night temperatures in mid- to upper-50... Read More

DAMP-OFF: Control

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Spray Captan at 1 ttpg., or PCNB (Terraclor) at 1 ttpg. as pot drench; also Chinasol, oxyquinoline benzoate (Wilson Anti-Damp), or sodium-o-phenylphanate (Dowicide Ai, Natriphene, Sopp, or Topane) ... Read More

CYMBIDIUMS: Culture to Induce Spiking

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago "full-sun" treatment can be successful; give as much sun as possible in the summer including risk of sunburn and with more water and fertilizer, OD68-244The day-night temperature change must be 20 ... Read More