Yes,
we are using a model, but it has not significantly reduced sulfer use as far as
I know as the pressure in the North Coast most of the summer is always high. 80
degrees and decent humidity.
Peter
-----Original Message-----Peter,
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of [EMAIL PROTECTED]
Sent: Sunday, February 02, 2003 11:32 AM
To: [EMAIL PROTECTED]
Subject: Re: COMPOST TEA was Re: Perry's recnt posts
Am curious if you use a degree day model for knowing when the PM pressure is greatest.
Also, do you have good mineral balance in the soil and in the vine?
Having good levels of soil/vine calcium, boron, zinc and phosphate (in addition to others) has been a very, very important part of keeping PM under management with my clients/vines.
Bob
