Mealy bug eradication
Sun, 08 Feb 2009 14:59:18 PST
My solar-heated greenhouse has a minimum temperature of 32oF and no 
pests of any kind.  It supports all the mealy-bug afflicted species 
mentioned.  A brave gardener might well leave plants outside to face a 
number of sub-40o nights, keeping a careful eye on the weather reports, 
with the reasonable hope that  pests will at least be significantly 
slowed down.  I can give no estimate of how long an exposure would be 
necessary, but really, there seems little reason to crank the 
greenhouse temperature above 40o in any case.
Jim Jones
Lexington, MA

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