Orchid doctor

INSECTS: Resistance and Persistence

Ailments Orchid Doctor

by Robert M. Hamilton (Compiler)

Originally published in The Orchid Doctor in 1980 and 1988

Posted by Sys Admin over 1 year ago.

Article Blog   Article Index
For reasons why insecticides become tolerated by insects, refer to OD69-309+
Share on Social Media:  
Log in to Add a Comment

More The Orchid Doctor Articles under the Heading Insects

Insects Comments
INSECTS: Control in Greenhouse by Predators Use of Lady-biEd beetles and Praying mantis claimed to be successful; refer to A69-606 0
INSECTS: Control with "safe" Insecticides Leftover tobacco from cigarette butts has eliminated springtails (without regard for virus); rotenone and pyrethrum are sometimes considered harmless to warm-blooded animals; but note, this is hardly so because Pyrethrins have an LD-50 of 680, and Rotenone has an LD-50 of 132, compared to Malathion which has an LD-50 of 880! A65-713+ 0
INSECTS: In Florida For a four-page list of arthopods (insects, arachnids) reported found on orchids, refer to DK25+ 0
INSECTS: Small Flying and Leaping Insects A control for those found on plants left indoors during the summer: Cygon 2E, 2 tpg. as a heavy spray on medium surface. A74-595 0
New Topics
  1. Greg Barne asked question Using triacontanol on orchids in category General Discussion
  2. Image Carol Holdren started topic Orchid History in category General Discussion
  3. Tom De Mello asked question Dendrobium wardianum in category Dendrobiums
  4. Dave 1 Dave Groffen started topic Dendrobium sutiknoi hybrids in category Dendrobiums
New Comments
  1. Image Carol Holdren commented on topic "Using triacontanol on orchids" by Greg Barne
  2. Img 20180409 125831 Andry Harmony commented on member plant Phal. bellina by Andry Harmony
  3. James J Pupelis commented on orchid Paph. Jackie Sue
  4. Image Carol Holdren commented on scheduled event "Cattleya Symposium " by Odom's Orchids
  5. Bio Alex Maximiano commented on member plant B. Kiilani Stars by Nestor Moreno Martinez
  6. Bio Alex Maximiano commented on member plant Ctpsta. Leona 'Popper' by Carol Holdren
  7. Steve Maben commented on member plant Aergs. hariotiana by Tom Kuligowski
  8. Bio Alex Maximiano commented on member plant Phal. Tying Shin Fly Eagle by Phillip Ting
  9. Img 1288 Maria Mantellini commented on member plant C. lueddemanniana ''Doral'' by Maria Mantellini
  10. Image Carol Holdren commented on topic "Dendrobium wardianum " by Tom De Mello