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. William Gorski asked question Orchid Species: Vanda falcata h.v. Ryunotsume in category Species
  2. Stefan Neher asked question Stale Data in category Site Navigation
  3. Penny Edwards asked question diseases in category Phalaenopsis
  4. Penny Edwards asked question diseases in category Phalaenopsis
  5. peter teller asked question please help with an id..... in category General Discussion

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