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 almost 2 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. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander asked question Can Zygopetalum (genus) be added to the look-up? in category General Discussion
  2. Paph hsinying jewel x paph hsying jewel september 09 2018 Adrienne Alexander started topic Zygopetalum in category General Discussion
  3. Piet2 Pieter Opperman started topic Some advice please in category General Discussion
  4. Susan Makar asked question "Aztec Gold" in category General Discussion
  5. Alison Brown asked question BLC can anyone tell me the hybrid name in category General Discussion
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