The Orchid Doctor Articles under the Heading Air Pollution

Air Pollution Comments
AIR POLLUTION: Sulfur Dioxide, Ozone, Ethylene Cattleya buds and phalaenopsis buds just opening are extremely sensitive to ethylene cloudy, still weather in autumn and winter allows concentration; injury varies with degree and duration; high concentration causes older cattleya leaves to suffer; no control available; activated carbon filters are expensive. A65-697; A67-567; AH54 0

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  1. Jeanne Uzar Hudson asked question Meetings for Advanced Growers in category General Discussion
  2. kevan gregory asked question how difficult is it growing from seed in category General Discussion
  3. Carmen Britton asked question Information in category General Discussion
  4. Jeanne Uzar Hudson asked question Repotting Large Cattleyas in category Cattleya Alliance
  5. Nancy Shapiro asked question Where did you find this type of orchid pot? in category General Discussion

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  1. Jeanne Uzar Hudson commented on topic "Repotting Large Cattleyas" by Jeanne Uzar Hudson
  2. Jeanne Uzar Hudson commented on member plant Paph. malipoense by Jeanne Uzar Hudson
  3. William Gorski commented on topic "how difficult is it growing from seed" by kevan gregory
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  5. Carol Holdren commented on member plant C. lueddemanniana var. Coerulea, Venosa by Paulo Fiuza
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  8. Mariana Chacon commented on orchid Gom. Jiaho Queen
  9. Roberto Lizama commented on member plant Max. dillonii by Roberto Lizama
  10. Nancy Speedy commented on scheduled event "2024 Orchid show Martin County "Ocean of Orchids"" by Martin County Orchid Society