Newly Posted Articles

PHOTOGRAPHY: Professional Advice

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Unusual pointers: on the tripod; white flowers differ from reds in photography; watching for shine on paphiopedilums; shadows and backdrops; black, floodlamps,different kinds of film; refer to OA82... Read More

QUILLING: Of Leaves of Dendrobiums

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago D.phalaenopsis hybrids show lack of unfolding of the leaves; low humidity is thought to be a cause; leaves may be bound by dry, hard nectar; cause not really known; syringing may be beneficial. A80-4 Read More

PHOTOGRAPHY: Standard Backdrops

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Since the days of Dr. George Kennedy who photographed all his scientific shots against a black background, that color has been increasingly the preferred one for non-scientific illustration by maga... Read More

PHOTOPERIODICITY: In Cattleyas

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Plants set their buds in a certain daylength; artificial light in a living room where plant is growing lengthens the day and prevents bud set. A70-344 Read More

PHOTOPERIODISM: Effects of Day Length

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago At three degrees north of the equator the difference between the shortest and longest days of the year is 20 minutes yet orchids bloom seasonally. A61-105 Read More

PHYSAN 20: Deterioration on Standing

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It loses its effectiveness by repeated use but the solution may not deteriorate just on standing. A76-14 Read More

PHYSAN 20: Harmful to Some Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago It has harmed roots of paphiopedilum at one-quarter strength solution when plants were dipped at repotting. A78-302 Read More

PHYSAN 20: Properties

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago The new (1979) name for Consan is Physan 20; use it to sterilize tools (slowly) control algae, and many diseases of orchids; it can also prolong the life of cut flowers. A76-115; A79-1112;C72-169 Read More

PHYSAN 20: Spraying Monthly

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Too frequent spraying with it may cause toxicity; use benomyl occasionally alternately. A80-254 Read More

PLANTS: Survival Insurance for the Grower

Author is Robert M. [Bert] Hamilton (Compiler), posted over 8 years ago Divide each valuable plant, arrange with a growing mate to exchange cherished items and by means of these back-ups act as mutual insurance agents for each other; you could also have it mericloned t... Read More