Re: CULT:Borer Control and Rot Prevention
- To: i*@egroups.com
- Subject: Re: [iris-talk] CULT:Borer Control and Rot Prevention
- From: h*@aol.com
- Date: Thu, 6 Apr 2000 09:35:49 EDT
In a message dated 4/6/00 9:23:20 AM Eastern Daylight Time, bills@hsc.edu
writes:
<< Murphy's Oil Soap is a good insecticidal soap, probably on a par with
Safer's. Soaps with fatty acid residues (like Murphy's) are the most
effective. Used as Michael outlined, it should be effective against borers,
but in order to kill them, the soap has to get on the borer itself. Since it
washes off in rain, that means spraying regularly and often for control. >>
What interests me in the Murphey's idea is the oil part of it, not the soap
part of it. I have expressed interest here previously in the idea that light
horticultural oils sprayed in late winter might have some utility in
smothering overwintering eggs.
Of course if there are multiple generations in a season, a winter spray of
light oil could only accomplish so much, but if there was a delayed hatch, it
might do a good deal more.
Anner Whitehead
HIPSource@aol.com
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