The Orchid Doctor Articles under the Heading Petal Blight

Petal Blight Comments
PETAL BLIGHT: Botrytis It is common during cool, damp weather, with poor air circulation; most harmed by it are cattleya and phalaenopsis flowers; destroy all infected blossoms quickly, spray with benomyl (Benlate 50W) at Ittpg,, or Physan at ittpg. AH86-90 0
PETAL BLIGHT: Botrytis cinerea It is confined to older flowers during cold damp weather; it is most common on various genera; small, circular spots often bordered by a delicate rim of pink; the imperfect stage Botrytis cinerea is the most destructive; destroys flowers; spray with Benlate 50WP at 1 ttpg. 30 days apart; also spray flowers just prior to opening. BU43 0
PETAL BLIGHT: Caused by Fungi Other Than Botrytis 16 other fungi have been found as causes; many are saprophytes living on decaying leaves, flowers, potting mixes; all such must be removed from under benches and bench tops; periodical spraying of floors, walls, ceiling and plant foliage with fungicide such as Captan, Actidione, Nabam, Zineb, Maneb, Ferbam, etc. is necessary; use Nystatin or Natriphene on cut flowers. A66-107; AH35 0

New Topics

  1. Mary Lane asked question Orchid roots .com site? in category General Discussion
  2. David George asked question recently purchased orchid shows unstoppable roots in category General Discussion
  3. katherine mott asked question shorter stem with less vigorous blooms in category Phalaenopsis
  4. Glenda Ratliff started topic need info on yellow bird in category General Discussion
  5. Paula Milano asked question Looking to join an orchid club. in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  2. Michael Makio commented on orchid V. Beatrice Makio
  3. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott
  4. Carol Holdren commented on topic "need info on yellow bird" by Glenda Ratliff
  5. Carol Holdren commented on topic "Looking to join an orchid club." by Paula Milano
  6. Jeanne Uzar Hudson commented on topic "Repotting Large Cattleyas" by Jeanne Uzar Hudson
  7. Jeanne Uzar Hudson commented on member plant Paph. malipoense by Jeanne Uzar Hudson
  8. William Gorski commented on topic "how difficult is it growing from seed" by kevan gregory
  9. Carol Holdren commented on topic "Information " by Carmen Britton
  10. Carol Holdren commented on member plant C. lueddemanniana var. Coerulea, Venosa by Paulo Fiuza