BUD DROP: In Phalaenopsis

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

Article Blog   Article Index
Air polluted with ethylene is the main reason. A74-502

Caused by air pollution, lack of vigor in the growth, improper temperature range, or inadequate light. A81-266

Ethylene is the only cause; it can come from artificial gas heat; automobile exhaust, burning brush and wood. A79-334

It may happen when plants are moved into the home after summering them outside or in a greenhouse; under lights they may get too much light or warmth, causing low humidity and stress; growing indoors in a window under natural light usually means the humidity is too low; other causes are too much drying, or too cold, or air pollution. OIE85Jy-9

Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Bud Drop

Bud Drop Comments
BUD DROP: Causes Extreme temperature fluctuations, with excessive sunlight on the buds; a spell of smog which usually conveys ethylene; or a genetic aberrancy, not noted before. A85-1118 0
BUD DROP: Causes Other Than Ethylene Fertilizer imbalance might cause it, or trace elements deficiency; root damage has caused bud drop, as has 0
BUD DROP: If Pollution Is Not Present This is hard to explain, except the possibility the plant is self-pruning to sustain the rest of the buds. A73-906 0
BUD DROP: In Cymbidiums May be caused by several things: temperature dropping too low when buds are developing; shortage of water while forming or about to emerge; a weakened condition caused by lack of fertilizer, too much water, or insect damage. A59-414Often follows a very bright winter or spring day after a frosty night; this causes a sharp rise in the temperature which produces metabolic confusion; expulsion of buds follows in 48 hours. OR76-128; refer also to A80-739 0
BUD DROP: In Dend. Phalaenopsis It frequently happens in the fall; the plants grow in good humidity in the summer and early fall then the temperature drops, the heat comes on in the greenhouse and the root system cannot cope. A85-1118 0
BUD DROP: In Dend. Phalaenopsis Types They are highly susceptible to damage by ethylene caused by gas heaters, wood-burning stoves, open fireplaces, burning brush outside the greenhouse, and unvented propane burners. A81-810 0
BUD DROP: In Late Fall and Winter Especially noticeable in Dend. phalaenopsis types; it is caused by water stress when heating conditions change suddenly and indoor warmth causes plants to lose moisture faster than the roots can supply it and bud loss adjustment occurs. F84-216 0
BUD DROP: In Paphiopedilums Caused by sudden temperature drop especially in early winter when one sunny day there is a fast heating lip of the greenhouse and as quick a drop at night. OD86-139 0

New Topics

  1. Danielle Carbonneau asked question phalaenopsis, dendrochum and Odontoglossum in category Phalaenopsis
  2. Nicholas Filannino asked question Phalaenopsis William Kistler? in category General Discussion
  3. Mark Farran asked question How to open and read articles listed in category General Discussion
  4. Juliann Eckhard started topic Cattleya little susie in category Cattleya Alliance
  5. Shannon Gardea asked question NELLY ISLER in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. Louis Wilson commented on member plant E. alata f. alba by Louis Wilson
  2. Julie Ellner commented on member plant Phal. amabilis var. formosanum by Vickie Seibert
  3. Julie Ellner commented on member plant Rlc. Green Dragoon 'Mendenhall' by Jeanne Uzar Hudson
  4. Danielle Carbonneau commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  5. Barry J Silver commented on orchid Lyon. SunCoast Pink Passion
  6. Carol Holdren commented on topic "Phalaenopsis William Kistler?" by Nicholas Filannino
  7. Carol Holdren commented on orchid Colm. Eric Gabriel Heines
  8. Carol Holdren commented on topic "Cattleya little susie" by Juliann Eckhard
  9. Carol Holdren commented on member plant Bc. Morning Glory by Chris Siolo
  10. R .Benson commented on member plant Kir. New Hybrid (Fred Clarke) SVO9831 by R .Benson
  11. Carol Holdren commented on topic "Blooming Stenglottis Venus “jamboree “" by John Urey
  12. Jeanne Uzar Hudson commented on member plant Lc. Canhamiana var. coerulea 'Cobalt' by Jeanne Uzar Hudson
  13. Jeanne Uzar Hudson commented on member plant Sns. gemmata by Jeanne Uzar Hudson
  14. Stefan Neher commented on topic "Orchid roots .com site?" by Mary Lane
  15. Kevin Barry commented on member plant Bul. Tammie Sue Pernas by Tony Pernas
  16. Linda Hartman commented on member plant Ctt. Final Blue by Linda Hartman
  17. Kevin Bergeson commented on member plant Paph. rothschildianum by Kevin Bergeson
  18. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  19. Michael Makio commented on orchid V. Beatrice Makio
  20. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott