Newly Posted Articles

DAYS, SHORT: How Many Required to Set Cattleya Buds

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Sometimes as few as five days; some crippling of flowers will show if too-long days follow the bud set period. A70-798 Read More

DAY LENGTH: Increased by Artificial Light

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cattleyas may not flower with too much light, under lights and with kitchen lights on full. A86-1031Fall flowering cattleyas most respond to light; increase the day length by turning on lights for ... Read More

EGGSHELLS: In Potting Mix

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago When crushed they are a good deterrent to slugs; cymbidiums like it in the mix, like crushed oystershells. OIE86Sept-7 Read More

LIME: Application to Plants

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago A common mineral deficiency is calcium which is usually lacking in commercial fertilizers; it is sometimes supplied by means of limestone or dolomite, whose usual alkalinity is partially offset in ... Read More

PHYSAN: Characteristics

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago It is quite alkaline and if combined with another alkaline product such as soap it might cause a problem. A88-296 Read More

PERISTERIA ELATA: A Problem Plant

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Cultural directions: the vital rest period may be missed if use of frequent liquid fertilizings stimulates the vegetative growth, if there is strong light during the night; temperatures should be a... Read More

DIAZINON: Insecticide/miticide

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Controls aphids, thrips, mites, scale crawlers, soft scale, mealybugs and other pests. OD65-168 Read More

DIAZINON: Its Application and Limitations

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Wettable powder preparations are safe, plus ltpg. of wetting agent, when temparatures are lower than 80dF; liquid concentrate preparations may injure some foliage but give somewhat better control. ... Read More

CROWDING PLANTS: Do Not Do it

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Air circulation is very important in the growth process. OD72-227 Read More

BRACTS ON SPIKES: But Flower Buds Don't Show There

Author is Robert M. [Bert] Hamilton (Compiler), posted almost 8 years ago Both oncidiums and phalaenopsis require a cool treatment of several weeks to promote flowering. A80-960 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)