Re: leaf spots
- To: Multiple recipients of list <i*@rt66.com>
- Subject: Re: leaf spots
- From: R* T* D* <r*@sierratel.com>
- Date: Sun, 29 Mar 1998 11:49:21 -0700 (MST)
Bill Shear wrote:
>
> Treatment and Prevention
> In areas with dry summers, fungal leaf spot comes on with the autumn rains.
> For the sake of appearances, badly spotted leaves can be removed. Even
> more so than with other diseases, fungal leaf spot can be prevented by
> avoiding crowding (the disease spreads from plant to plant) and by cleaning
> up dead foliage thoroughly in the fall and burning it.
After solarizing all my beds for the past two years I can attest to the
fact that this process reduces leaf spot to negligibe levels. This year
I have nearly none in the field. My theory is that solarizing kills the
spores in the soil. The small amount that has flared up I believe was
probably present on the plants. Another reason for solarizing your
beds.
Rick Tasco
Superstition Iris Gardens
Central California
Zone 8
