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 3 years ago.

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For reasons why insecticides become tolerated by insects, refer to OD69-309+
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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

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  1. Carol Holdren commented on member plant Mcp. Tibiana by Blanca Acosta
  2. Carol Holdren commented on topic "Searching for orchid" by Robert Ferguson
  3. Alex Maximiano commented on member plant Wilsonara 'Eye Candy 'Pinky'' by Susan Maxwell Schmidt
  4. Mary Lane commented on member plant Den. Emma White by Mary Lane
  5. Carol Holdren commented on topic "Care of Dracuvallia Gualaquiza" by Stephen Hodgson
  6. Carol Holdren commented on topic "Article references?" by Jan Andersen
  7. Carol Holdren commented on member plant Odcdm. Sunlight 'Pesky Panther' by Colin Campbell
  8. Carol Holdren commented on topic "The Decoene Orchid " by Diane Decoene
  9. Alex Maximiano commented on member plant V. bicolor var. Michael Collin by Susan Satterfield
  10. Stefan Neher commented on article "PLEIONES: Starting" by Robert M. Hamilton (Compiler)