Orchid doctor

INSECTS: Control with "safe" Insecticides

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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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+
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INSECTS: Control in Greenhouse by Predators Use of Lady-biEd beetles and Praying mantis claimed to be successful; refer to A69-606 0
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