The Orchid Doctor Articles under the Heading Spots

Spots Comments
SPOT INFECTION: Bacterial Ailment It is found on phalaenopsis especially, and on cattleyas; hyaline (glassy, transparent) spots or depressions are not systemic and can be stopped by keeping the foliage dry at night; avoid condensation on leaves; fans help considerably; do not spray bactericide. A71-609 0
SPOTS, BROWN: Appear on White Cattleya Blooms More Than on Colored Practice is to spray with Captan 50% weekly, and with Natriphene intermittently; the spraying of chemicals is excessive; spray only two or three times a year. A75-618 0
SPOTS, DOUGHNUT-LOOKING: On Phalaenopsis Leaves Likely the fungus disease anthracnose; remove the damaged leaves; spray with Fore (Dithane M45) at 1.5 ttpg.; dry leaves before night by use of a fan. A70-345 0

New Topics

  1. Mark Kaczynski asked question Looking for Dendrobium Jac-Hawaii 'Uniwai Pearl' in category General Discussion
  2. Angela Baxter started topic Catt. walkeriana in category Cattleya Alliance
  3. Luis Imatani asked question RLC/ LC Large flowered hybrids in category General Discussion
  4. Bill Overton asked question Phrag. Panther Run in category General Discussion
  5. William Gorski asked question Orchid Species: Vanda falcata h.v. Ryunotsume in category Species

New Comments

  1. Bill Overton commented on topic "Catt. walkeriana" by Angela Baxter
  2. Gonzalo Rotondaro commented on member plant Cattleya (Sophronitis) cerna by Laura Urban
  3. Steven Kirincich commented on member plant Lc. Little Oliver by Steven Kirincich
  4. Robert Rand commented on member plant Alcra. Winter Wonderland 'White Fairy' by Robert Rand
  5. Thuong Do commented on member plant Schom. tibicinis by Edward Zapata
  6. Bill Overton commented on topic "diseases" by Penny Edwards
  7. William Gorski commented on topic "Orchid Species: Vanda falcata h.v. Ryunotsume" by William Gorski
  8. Stefan Neher commented on topic "Stale Data" by Stefan Neher
  9. Susan Fairbairn commented on topic "diseases" by Penny Edwards
  10. Robert H. Findlay commented on topic "seed vs. pollen parent " by Robert H. Findlay