oxalis pes caprae control

Chad Schroter Chad.Schroter@sandisk.com
Wed, 15 Feb 2012 08:50:38 PST
Randy,  That's pretty much the conclusion I have come too.  I thought I had eliminated them from a bed where I layered newspaper and mulch, but they 'returned' after a couple of years. I must have missed seeing them when they were very small. In another area I have had excellent results by weeding every scrap I can find once each month during a single season.  I believe the first weeding takes care of most of the original bulbs strength, the second takes care of the rest, and by the third/fourth weeding there is nothing left to generate bulbs for the next season. This is only really practical where the ground is mostly clear of plants unfortunately...

Chad   Los Gatos, California

-----Original Message-----
From: pbs-bounces@lists.ibiblio.org [mailto:pbs-bounces@lists.ibiblio.org] On Behalf Of Randall P. Linke
Sent: Tuesday, February 14, 2012 6:01 PM
To: Pacific Bulb Society
Subject: Re: [pbs] Chacun a son gout

On Tue, Feb 14, 2012 at 4:02 PM, Leo A. Martin <leo@possi.org> wrote:

> Oxalis pes-caprae isn't invasive here in Phoenix...Now O. corniculata is
> another story.

Both are a pain in my garden in the central Monterey Bay area of
California.  I covered a few beds which were infested last year with a
heavy mulch and the number of plants of both types that came up this year
were minimal.  I am still pulling them up as they appear and I see them.
 The O. pest-crapae  is now just developing new bulbs, so I am making extra
effort to weed it out over the next few weeks. It appears that if you can
remove them between the time they exhaust their original bulb and before
they can make new ones you have a good chance of controlling it.


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