Category: Ailments

LEAVES: Wrinkled Front Ones

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago This suggests a cultural failure, so check the roots first and then the other cultural practices. A85-1118 Read More

CYMBIDIUMS: Eye Injuries Caused

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Leaves have sharp points which can damage eye-balls, so take care. OD74-136 Read More

DAMP-OFF: Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Drench seedlings removed from flask every two weeks with Physan 20, 1.5 tpg.; or, Shield, 1 ounce to 4 gals, water. BU11 Read More

MILLIPEDES: Are They Beneficial?

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The best plants came from a corapot in which four of them thrived; maybe their excrement is utilized by the seedlings. OIE-86Dec-15 Read More

NEMATODES: Eel Worms

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Rarely reported on orchids, there have been cases of attacks on buds of terete vandas in Hawaii, cymbidium roots in Californa, leaves of cymbidiums in New Zealand. AH86-61 Read More

LIPS: Abnormal Coloration

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Rose or reddish pigmentation occurs in cymbidiums and epidendrums in response to pollination or pollen removal; mice remove pollen; removal frequently hastens the ageing of the flowers. A67-569+; A... Read More

MALATHION: Insecticide/miticide

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A stomach and contact poison; recommended for springtails, red spider mites, aphids, mealy bugs, ants; apply at 1 ttpg. weekly; has an LD-50 of 880 mg. A71-894; OD65-168 Read More

MALATHION: Insects Apparently Immune

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Try adding a wetter-sticker at the rate of 1/2 tpg. to the Malathion spray of 1.5 tpg. A75-500 Read More

MALATHION: Never Take it for Granted

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago The most frequently recommended insecticide but do not take it for granted; it is a poison; it will harm some flowers; it will spot some masdevallias; drops of the spray produce burns on cattleyas,... Read More

PESTICIDES: Shelf Life

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They should be purchased for short-term use; mark the date of purchase on the container; most keep their effectiveness for two or more years if stpred properly; signs of ineffectiveness in dusts an... Read More