Category: Ailments

MITICIDES: Most Widely Used

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Vendex, has low toxicity to humans, claims are made that it kills the spider mites as larvae, chrysalis,eggs, insects; Pentac, relatively safe with long residual action; Kelthane, where obtainable;... Read More

PESTICIDES: Characteristics and Dangers

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A recent review of them from the orchidist's viewpoint and requirements, with an LD50 list; refer to AU80-25+ Read More

ANTS: Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Chlordane is the best control; its toxicity is twice that of malathion and it penetrates skin. A68-583; A76-14; use chlordane or submerge pot in water for 10 to 15 minutes. F78-66; most ant sprays ... Read More

MOLD: In Terrarium with Osmunda

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Mold was induced by previously baking the osmunda twice at 200 deg.F. A76-895 Read More

PESTICIDES: Application Safeguards

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago They are all toxic so beware of them; wear protective clothing and a face-mask because ordinary clothing absorbs the spray; notify someone outside the greenhouse that you going to spray; always sho... Read More

PESTICIDES: Applicator's Licence

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A restricted pesticide applicatorf s licence can be obtained by anyone who buys the government pesticides manual and passes an exam after taking a course given by Agriculture agents; the manual alo... Read More

PESTICIDES: Available Only to Commercial Nurseries

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Agricultural chemicals are strictly regulated and their availability is usually restricted before being made available as a consumer package, and it may be delayed for years; repackaging into small... Read More

CYMBIDIUM MOSAIC VIRUS: Most Common Virus Disease

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago Cymbidium Alexanderi 'Westonbirt' is infected in all its divisions; small elongated chlorotic streaks appear on the younger leaves; later widen and elongate and become sharply defined some with isl... Read More

DIMETHOATE: Also Called Cygon

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago An organophosphorous systemic insecticide effective against aphids, thrips, mealybugs and scale insects has residual action as spray for one to two weeks; as a drench has residual action of four we... Read More

FUSARIUM WILT: Fusarium Monoliforme

Author is Robert M. [Bert] Hamilton (Compiler), posted over 7 years ago A fungus causes slimy brown rot of cymbidium seedlings and cattleya pseudobulbs and leaves; may form a white mat over fir bark and roots, preventing absorption of nutrients. OD67-13 Read More