The Orchid Doctor Articles under the Heading Systemics

Systemics Comments
SYSTEMICS: Definition Insecticides and fungicides which are taken up through the tissue of plants and become part of the protoplasm and do not just form an outer coating. OA75-179; it's not a part of protoplasm. OWD 0
SYSTEMICS: For Scale Control Systemic sprays are not very effective because orchids grow too slowly to get a good "burst" of pesticide into the affected area; Cygon is the best for Boisduval scale but is not labelled for greenhouse use. A87-615 0
SYSTEMICS: Insecticides Commercial names include Actidione, Cygon 2E (Dimethoate), Di-Syston, Orthene, Meta-Systox-R, Temik. RMHOf limited effectiveness because orchids grow slowly and systemics are not much good, although Cygon 2E will penetrate the sheath of cattleyas and kill scale, etc. ; it takes months for a systemic to move from the roots to the top of the plant. A87-615; OIE85Jy-6 0
SYSTEMICS: Pesticides A product that has been recommended for years in Florida is Meta Systox-R25.4%. A87-1237 0
SYSTEMICS: Review For description, etc. of Di-Syston granules, Di-Syston cartridge, Meta-Systox-R sprays and Cygon spray, refer to C69-46+ see also Cygon 2E; Insecticides; Temik 0

New Topics

  1. Judith Pariseau asked question Paphiopedilum culture differences in category Paph Alliance
  2. Marc Lefkowitz asked question Bulbophyllum in category Bulbophyllums
  3. Tony Borowiecki asked question Can a Bealleara re-flower in category Oncidium Alliance
  4. Tony Borowiecki asked question Re-flowering Orchids in category Dendrobiums
  5. Sylvia Spence asked question How to care for my new orchid in category General Discussion

New Comments

  1. Judy Bailey commented on topic "Paphiopedilum culture differences " by Judith Pariseau
  2. David Hickman commented on topic "Mystery Orchid" by David Hickman
  3. Carol Holdren commented on topic "Bulbophyllum " by Marc Lefkowitz
  4. Carol Holdren commented on topic "Can a Bealleara re-flower" by Tony Borowiecki
  5. Carol Holdren commented on topic "How to care for my new orchid" by Sylvia Spence
  6. Bodil Bruus commented on member plant Ctt. Mrs. W. N. Elkins var. coerulea by Linda Thorne
  7. Jan E Teitsworth commented on topic "Can anyone identify this orchid?" by Jan E Teitsworth
  8. Carol Holdren commented on topic "Brassolaeliocattleyamaianh " by Kim Loan T Nguyen
  9. David garcia commented on member plant Myrmecophilia tibicinis stromburgkia trumpet player by David garcia
  10. Carol Holdren commented on member plant Bc. Maikai by William Gorski