Quote:
Originally Posted by The Peloric Orchid
Not even insecticidal soap? I was under the impression that insecticidal soap and horticultural oil were were to bugs as rubbing alcohol is to microorganisms.
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In both cases, if there IS a pest or microorganism present, a treatment will kill some, not all. The hardiest survive. So repeat treatment is necessary. But if there isn't a pest present then the treatment will be of no use. Don't treat unless you know what you are treating, and select the appropriate treatment for the problem.
Instead, observe. If there's a problem, it will show up and then you deal with it. If nothing shows up, you're in the clear. Bill Thoms, Bulbophyllum grower extraordinare, calls it POO ... Power Of Observation. It's your superpower. So use your POO!
The Peloric Orchid 
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