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 about 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
New Topics
  1. Milena Radeva asked question Orchid name in category Phalaenopsis
  2. Gilda Gómez asked question Dendrobium loddigesii in category General Discussion
  3. Edward Zapata asked question Selfing Question on Pollinating. in category General Discussion
  4. Edward Zapata asked question Name of Cymbidium? in category General Discussion
  5. 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
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  4. John Vernam commented on orchid Den. Little Andree
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  6. Edward Zapata commented on topic "Selfing Question on Pollinating. " by Edward Zapata
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  8. Edward Zapata commented on topic "Some advice please" by Pieter Opperman
  9. Image Carol Holdren commented on member plant Lyon. Over Easy 'sun kissed' by frank Methmann
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