Newly Posted Articles

TETRACHLOR (CARBON TETRACHLORIDE): Toxicity Reactions in Humans

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Nervous depression, liver and kidney damage. A68-583 Read More

CORK: As Mounts for Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago C. aclandiae, C. walkeriana, C. nobilior, and C. schilleriana, all Braz ilian bifoliates, grow on fissured bark or moss-covered rocks in a pronounced wet and dry seasonal change; cork allows roots ... Read More

LEAF BLIGHT: Also Known as Leaf Die-back, Tip Burn

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Caused by fungus invasion; spreads gradually through leaf; cut it out before treating; infected areas show watery before drying; control with Benlate, or Anti-Damp, or Tersan. RMH Read More

SAND: In Cymbidium Mixes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago As a mineral component in mixes, sand has diminished in popularity as it slowly sinks down and layers at the bottom of the container; it has largely been replaced by Perlite . OA82-5 Read More

SCALE: Hard to Get Rid of

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use Cygon 2E at 2tpg. applied when the temperature is below 70 dF; clean off the dried sheaths from the pseudobulbs first. A82-248 Read More

CLOROX: What it Is

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A trade name for a household bleach used to whiten sheets, etc., in washing machines; it is about 5% solution of sodium hypochlorite. A61-983 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

SEED: Viability Test by Immersion

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago There is no published proof of testing orchid seed by immersion in chemicals; for non-orchid seed see: Proc. of the Assoc. of Official Seed Analysts, 1952, 143+ A65-721 Read More

SEEDLINGS: Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Fast or slow as an indicator of flower quality?; sometimes a poor grower produces fine flowers; some of the best growers produce the best. A65-1003 Read More

BRACTS ON SPIKES: But Flower Buds Don't Show There

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Both oncidiums and phalaenopsis require a cool treatment of several weeks to promote flowering. A80-960 Read More