Category: Orchid Doctor

BUDS: On Paphiopedilums, They Turn Brown, Working Down the Stem

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Probably caused by bacteria; provide good air movement; water early in the day; for additional protection soak plants entire in Natriphene 1:2000 for 15 to 30 minutes. A72-534 Read More

BUDS: On Phalaenopsis They Blast and Drop

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Ethylene only is the cause, sometimes intensified by atmospheric conditions. A68-811 Read More

BUDS: Turned Black on Cattleya Skinneri After Half-opening

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Probably caused by too much cold. A76-206 Read More

BUFFERING: In Potting Mixes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago While some ingredients in mixes are described as non-buffering, such as Perlite (OR81-221) it is also thought that such is not really necessary in mixes. OA87-205 Read More

BUSH SNAILS: Behavior and Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Snails go deeper as the pot dries out; most effective surface spray is with metaldehyde but spray is not as effective as soaking; spray first with water,wait two or three hours then apply; most eff... Read More

BUSH SNAILS: Control in Phalaenopsis

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Use slug and snail bait (granules) containing a combination of metaldehyde and mesurol. A78-13 Read More

BUSH SNAILS: Control in the Greenhouse

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago In tests, metaldehyde was the most effective bait; method of application is important; a dozen brands tested were ineffective and blocked drainage; liquid sprays were partly effective; 2 ttpg. of 2... Read More

BUSH SNAILS: In Bark

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Sevin 50%WP did not eliminate them all; use Mesurol plus metaldehyde in pellet form. A77-527 Read More

BUSH SNAILS: Method of Control

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Mesurol 50% used as a drench achieved 100% control; use 1 lb. to 100 gallons of water. A73-28 Read More

ACID OR ALKALINE: Changing the Values

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Various means can be used: tufa, a limestone form, can be added to paphiopedilums from limestone cliffs; bark composts acidify with age; peatmoss, pine needles, oak leaves in the mix produce acidit... Read More