Newly Posted Articles

Orchid doctor

CARBON DIOXIDE: Ethanol and Methanol Alcohol Burning to Heighten Carbon Dioxide Content of Air

Posted by Sys Admin about 3 years ago Satisfactory if burned in greenhouse in small amounts; alcohol flame is invisible by day and dangerous. A69-242 Read More
Orchid doctor

ANTS: Nesting Between Osmunda and Bark Slab Requires Control Safe for Visiting Hummingbirds

Posted by Sys Admin about 3 years ago Spray around the "nest" and base with Chlordane WP, A71-249 Read More
Orchid doctor

BOTRYTIS: Time Lag to Its Visibility

Posted by Sys Admin about 3 years ago It takes normally 10 to 12 hours to show on cattleya flowers. A80-110 Read More
Orchid doctor

BUDS: Turned Black on Cattleya Skinneri After Half-opening

Posted by Sys Admin about 3 years ago Probably caused by too much cold. A76-206 Read More
Orchid doctor

PHALAENOPSIS: Buds Fall Off in the Home

Posted by Sys Admin about 3 years ago The chances are good that the atmosphere in the home in winter is too dry because of low relative humidity, so place the plants on pans of gravel ana water. A83-1156 Read More
Orchid doctor

BLACK TIPS: On New Shoots on Cattleyas

Posted by Sys Admin about 3 years ago If the blackening does not progress rapidly it is probably not due to disease but excessive use of fertilizer. A72-1100 Read More
Orchid doctor

CATASETUMS: Eat Buds

Posted by Sys Admin about 3 years ago Greenish and gray worms are probably cabbage loopers; spray with Lannate 90%WP; slight possibility of plant damage from spray. A71-249 Read More
Orchid doctor

CATTLEYA GASKELLIANA: Multiple Leads; How to Encourage?

Posted by Sys Admin about 3 years ago Cut the rhizome in places part way through; let sections root; repot separately. A79-272 Read More
Orchid doctor

STERILIZATION: Compost

Posted by Sys Admin about 3 years ago With heat: heat the compost at 180 to 190 deg. F. for 30 minutes. A71-21 Read More
Orchid doctor

WORMS: Medium

Posted by Sys Admin about 3 years ago The best substrate for Cattleya labiata; it is a fern trunk fiber Dicksonia sellowiana, native to Brazil's Atlantic forest; now endangered. OD87-147 Read More

Ailments

(927 articles)

Angraecoids

(40 articles)

Beginners

(9 articles)

Book Review

(3 articles)

Bulbophyllums

(1 articles)

Cattleya Alliance

(89 articles)

Conservation

(16 articles)

Culture

(1329 articles)

Curiosity

(18 articles)

Cymbidiums

(163 articles)

Dendrobiums

(25 articles)

General Discussion

(0 articles)

Oncidium Alliance

(46 articles)

Orchid Doctor

(3579 articles)

OrchidWiz

(25 articles)

Other Genera

(11 articles)

Paph Alliance

(77 articles)

Phalaenopsis

(80 articles)

Pleurothallids

(0 articles)

Propagation

(184 articles)

Scientific

(2 articles)

Site Navigation

(0 articles)

Species

(56 articles)

Travelogue

(1 articles)

Vandaceous

(21 articles)