Newly Posted Articles

FLASKING BOX: Cheap and Adequate

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Made from a cardboard box, saran wrap and aluminium foil; diagrams; refer to A69-286 Read More

FLASKING CASE: Laminar Flow Filter

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago To remove fungus spores the filter should be four microns; for bacteria less than one micron. A74-502 Read More

FLASKING CASE: Made Out of a Corrugated Carton

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For directions and illustration, refer to OD68-77 Read More

MILLIPEDES: Characteristics and Controls

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago They feed on decaying organic matter, sometimes they feed on roots, especially of seedlings; their presence causes the media to break down early; use a pot drench of Diazinon; it has no phototoxici... Read More

FLASKING FORMULAS: For Germination of Seedlings

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago For many of the standard culture media formulae, recipes and application for different genera and species, refer to OBII-243, 275, 279, 324, 334, etc. Read More

SAWDUST COMPOST: Potting Medium for Cymbidiums

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Mixed with fowl manure; it is successful with some growers; breaks down easily; can cause root rot; sawdust from "treated" timber may also cause root rot; fowl manure might contain elements harmful... Read More

SHEATHS: Removal Effect on Buds

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Removal of the sheath does no harm but the bud stems may be weakened. A72-55 Read More

WATER HEATER: Use a Small Coffee-cup Immersion Heater

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Place it on a piece of styrofoam about 6in. square with the element protruding downwards through a slit in the middle; place it in a 40 gallon plastic garbage can so it floats with the heater in th... Read More

BACTERIAL DISEASES: Unusual Causes

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago May include such factors as excremental deposits from birds (outeide), insects, rodents, lizards, etc., on leaves or in pots; for general sanitation use Physan occasionally. A80-1368; OBIV-267 Read More

DAMAGE: Ascertaining Cause of Problems

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Look for it in accordance with this order: 1, Handling damage such as bruising, cracking, tearing, etc.; 2, Cultivation, such as water or light damage, overfeeding, heating, etc.; 3, Insect damage,... Read More

Ailments

(931 articles)

Angraecoids

(41 articles)

Announcements

(4 articles)

Beginners

(21 articles)

Book Review

(4 articles)

Bulbophyllums

(2 articles)

Cattleya Alliance

(95 articles)

Conservation

(16 articles)

Culture

(1363 articles)

Curiosity

(49 articles)

Cymbidiums

(163 articles)

Dendrobiums

(29 articles)

General Discussion

(3 articles)

Oncidium Alliance

(64 articles)

Orchid Doctor

(3579 articles)

OrchidWiz

(27 articles)

Other Genera

(12 articles)

Paph Alliance

(78 articles)

Phalaenopsis

(83 articles)

Pleurothallids

(1 articles)

Propagation

(184 articles)

Scientific

(4 articles)

Site Navigation

(2 articles)

Species

(62 articles)

Travelogue

(2 articles)

Vandaceous

(26 articles)