Category: Ailments

PESTICIDES: Stored for Use

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Both fungicides and insecticides deteriorate rapidly when stored in dilute solution with water. A67-901 Read More

SNAILS: Tiny Ones in Pots

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Spray or dust bush snails with a metaldehyde preparation. A73-208 Read More

HEART ROT: Caused by a Species of Phytophora

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It especially affects phalaenopsis and vandas; begins on a leaf and spreads to the stems; cut off infected areas early; soak plant in Anti-Damp then treat with Tersan. A73-813 Read More

HEART ROT: Phytophthora Omnivora

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Fungus, causes rot where leaf meets the stem; dark, sharply dilimited lesions appear first in heart of the plant; spreads rapidly if not dry; vandas, phalaenopsis and even cattleyas are most suscep... Read More

SOW BUGS: On Mounts

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago It is claimed that they wreak havoc by eating the fresh root-tips (California); control by spraying with Diazinon or Sevin. A83-614; could be bush snails? RMH Read More

CYMBIDIUMS: Brittleness in Half-grown Stems

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago If breakage is frequent it can be attributed to a boron deficiency; dissolve one level teaspoon of borax in 1 quart of water, take one level teaspoon of the solution and put that in one quart of wa... Read More

INSECTICIDES: Recommended

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Aramite, Cygon 2E, Malathion, Plant Fume. OD67-50 Read More

INSECTICIDES: Rubbing Alcohol

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Recommended for use on mealybugs, soft scale and possibly others, do the top and bottom of leaves as a spray; it quickly dessicates the pests. OIE86Sept-15 Read More

INSECTICIDES: Toxicity

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Expressed in LD-50 (Lethal Dose for 50% of animals on which it was tested) plus a dose number, the lower it is the more lethal; examples: Chlordane 475 to 590; chlorobenzilate 3,100; Cygon 2E 215 t... Read More

SPRINGTAILS: Collembola

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Small insects about 5mm. in length; they appear thickly on damp potting media; white or grey in color; they feed on decaying matter, bacteria; more a nuisance than anything else; no control given; ... Read More