Newly Posted Articles

JEYES FLUID: Disinfectant

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Registered for soil conditioning in the U.K. it is used as a spray against such orchid pests as black spot, red spider mite; is useful for eliminating slugs and snails; has been tested on cymbidium... Read More

PYRETHRINS: Extract of Chrysanthemums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Its toxicity reactions in humans: local anesthesia, intestinal distress, headache, ringing in the ears, etc; A68-583; LD-50 is 1,500; relatively safe. OWD Read More

PYRETHRUM: A Safe Insecticide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A powder, it can be used in the home, is available as an aerosol spray to be used on flowers on indoor plants; is harmless to bees, but kills ants, aphids, thrips, caterpillars, white fly; it usual... Read More

PYTHIUM BLACK ROT: And Damp-off

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Caused by Pythium ultimum; it requires free water in order to spread; community pots are most vulnerable; on older plants black spots should be cut out and the plant soaked in Anti-Damp or Natriphe... Read More

PYTHIUM BLACK ROT: On Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Treatment: drench the plant in Truban at one ounce to 25 gals. water, or 1 level teaspoon in 3 gals. water. A74-34 see also Black rot; Dry rot; Leaf blight; Leaf tip blackening; Pythium ultimum Read More

KITTY LITTER: As a Potting Medium

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Rupiculous laelias grow well in it provided it is not too deep; on a small log it can be scatted over the roots of mounted plants to lodge between them. OIE87Jan-l Read More

HEATERS: Wood-burning Stoves

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They are not recommended because they ruin most orchids unless the draft is fully open at all times to discharge fumes into the neighbour's back yard. A81-526 Read More

KOCIDE: Fungicide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is not listed by the Florida Extension Services for use on orchids; it contains copper and in the tropics where citrus trees are sprayed with copper, no orchids grow. A85-1119 Read More

LACEWINGS, GREEN: A Predator Insect

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Can be purchased and released in the greenhouse to eliminate some flying pests. A86-1141 Read More

PH (GENERAL): Of Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Experiments show that if a recommended medium is chosen the initial pH should cause no concern. Hort. revs. 1983-195 Read More