Newly Posted Articles

CYMBIDIUMS: Shading Green Flowers

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Shade them shortly after buds are exposed from the sheath; this prevents red pigments forming to cause muddy coloration later. OA75-179 Read More

ANTHRACNOSE, EUROPEAN: Gloeosporium Affine

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A weak parasite; lesions on leaves and pseudobulbs slightly sunken, yellow to light green, circular; later, spore-bearing structures appear. A66-480; AH29Spots on leaves yellowish or light green, t... Read More

ANTIBIOTICS: As Growth Stimulants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Streptomycin, terramycin used experimentally on cattleyas resulted in disadvantages, and are not recommended; refer to A59-38+ Read More

SHADING: Purpose

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It reduces both the heating effect of the sun and the intensity of light, so a compromise is always in order; the best by test is lath blinds, placed about one foot above the roof, and rolled into ... Read More

SOW BUGS: In Fir Bark

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Control by dusting the surface of the pot mix with Sevin dust 5%. A82-1061 Read More

PHALAENOPSIS: Micro-fungi Infection

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Perceived as a new disease in the U.S., it starts with ill-defined yellowing at the leaf edge, spreads inward, sometimes the leaf looks reddish-brown and dehydrated; then it moves to the next leaf;... Read More

HUMIDIFIERS: Portable Unit Develops Fungus Growth

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To control this, use Physan 20 one drop in three-quarters of a gallon of water. A78-698 Read More

PHALAENOPSIS: Potting in Bark

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They will grow in gravel, sand, cork, lava, pumice, redwood chips, coconut hair, charcoal, foam rubber, etc., but bark is conventional; let it soak in water from three to 10 hours, sized according ... Read More

BARK: Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A typical mixture would have about 15 parts medium bark, 1-1/2 parts coarse Perlite, 174 part charcoal chips (quarter-inch size). OR87-173For cymbidiums in a high humidity area near the ocean in Ca... Read More

OUTDOORS GROWING: In Miami Area

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago "grow or go" applies to orchids of minor importance in a large garden; plants are attached especially to oak trees on the east side at a point where water sprinklers hit a window-screener pouch wit... Read More