×
You need to log in or sign up before executing this action.

MITES, TWO-SPOTTED: Biological Controls

Ailments Orchid Doctor

by Robert M. [Bert] Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin almost 8 years ago.

Article Blog   Article Index
Predatory mites are available to combat them, in Australia two kinds are used called Typhlordromus occidentalis and Phytosemilus persimilis and are found in most cymbidium ranges. Au87(1)-13
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Mites, Two-spotted

Mites, Two-spotted Comments
MITES, TWO-SPOTTED: Characteristics and Control Tetranychus urticae is pale greenish or yellowish with a dark spot on each side; spun webbing on underside of leaves is apparent in heavy infestations; is large enough to be seen by the naked eye; a principal pest of cymbidiums; spray seven to 10 days apart with Kelthane, Tedion, Pentac Temik granules; or use Dithio or Tedion-Dithio smokes. A73-714; AH3 0
MITES, TWO-SPOTTED: Characteristics and Controls They are pale green or yellow with a dark spot on each side on the back; webs appear when the mites are numerous; control them with registered miticides for your area such as Azodrin, Kelthane, Metasystox 251 EC. AH86-62 0
MITES, TWO-SPOTTED: Controls More harm is likely to be done to plants by the use of liquid formulations than by the wettable powder types. NZ86-103 0
MITES, TWO-SPOTTED: Spider, or Red Spider Mite They may be green, orange, pale yellow or red; the stippling is either whitish or brownish; damage is done on the underside of the leaves, with puncture wounds; sometimes the wounds acquire a watery surround; can cause cupping to the flower when they attack and enter the opening bud sheath and bud; cause raised, warty lumps or bumps on the flowers after attack the buds earlier; they thrive under dry conditions; whitish webs are evidence; use Dimite, Kelthane as miticides. A73-714 0
MITES, TWO-SPOTTED: The Life Cycle As temperature rises in the summer above 50 dF, the incubation period is reduced from 21 days at 60 dF to 6 days at 90 dF and their numbers increase in geometric proportion; use Kelthane (if you can get it) start applying it early and heavily every three days for six to eight times (it1s that bad) especially to the underside of each leaf. A83-1075 0

New Topics

  1. Danielle Carbonneau asked question phalaenopsis, dendrochum and Odontoglossum in category Phalaenopsis
  2. Nicholas Filannino asked question Phalaenopsis William Kistler? in category General Discussion
  3. Mark Farran asked question How to open and read articles listed in category General Discussion
  4. Juliann Eckhard started topic Cattleya little susie in category Cattleya Alliance
  5. Shannon Gardea asked question NELLY ISLER in category General Discussion
Ask a Question

Start a Topic

New Comments

  1. Louis Wilson commented on member plant E. alata f. alba by Louis Wilson
  2. Julie Ellner commented on member plant Phal. amabilis var. formosanum by Vickie Seibert
  3. Julie Ellner commented on member plant Rlc. Green Dragoon 'Mendenhall' by Jeanne Uzar Hudson
  4. Danielle Carbonneau commented on member plant Ons. Catatante 'Los Roble' by Henry Shaw
  5. Barry J Silver commented on orchid Lyon. SunCoast Pink Passion
  6. Carol Holdren commented on topic "Phalaenopsis William Kistler?" by Nicholas Filannino
  7. Carol Holdren commented on orchid Colm. Eric Gabriel Heines
  8. Carol Holdren commented on topic "Cattleya little susie" by Juliann Eckhard
  9. Carol Holdren commented on member plant Bc. Morning Glory by Chris Siolo
  10. R .Benson commented on member plant Kir. New Hybrid (Fred Clarke) SVO9831 by R .Benson
  11. Carol Holdren commented on topic "Blooming Stenglottis Venus “jamboree “" by John Urey
  12. Jeanne Uzar Hudson commented on member plant Lc. Canhamiana var. coerulea 'Cobalt' by Jeanne Uzar Hudson
  13. Jeanne Uzar Hudson commented on member plant Sns. gemmata by Jeanne Uzar Hudson
  14. Stefan Neher commented on topic "Orchid roots .com site?" by Mary Lane
  15. Kevin Barry commented on member plant Bul. Tammie Sue Pernas by Tony Pernas
  16. Linda Hartman commented on member plant Ctt. Final Blue by Linda Hartman
  17. Kevin Bergeson commented on member plant Paph. rothschildianum by Kevin Bergeson
  18. Carol Holdren commented on topic "recently purchased orchid shows unstoppable roots " by David George
  19. Michael Makio commented on orchid V. Beatrice Makio
  20. Carol Holdren commented on topic "shorter stem with less vigorous blooms" by katherine mott