Disease risks from 6/13

A storm went through our area and resulted in several wetness events.  The longest one was about 11 hours of wetness with an average temperature of 68F.  It was a… Read more

Disease risks from 6/6-6/8 rains

A series of rain event started around 9:30 AM on June 6th, and continued on until about 2AM on June 8th at Winchester.  Thus we had a wetness event for… Read more

Disease risks from yesterday’s rain event

Winchester area received a series of thunderstorms from 3:00 PM yesterday, and relative humidity remained high (>90%) until 9:00 AM this morning.  Thus we had a wetness event of 18… Read more

Bloom 2013

–> I just visited another vineyard down in the south where Norton vines were in full bloom, and when I came back, our Chardonnay vines were in trace-bloom.  As we… Read more

Disease risks from last few days

In Winchester area, rains from May 22-23 resulted in ~19 hours of wetness with an average temperature in lower 60’s. We had 5-6 hours of dry period, then another rains… Read more

Disease risk from May20th

We did not receive afternoon rains at Winchester yesterday. We were hoping for it because we are planing a new vineyard… However, we received a short rain around midnight yesterday… Read more

Frost injury (and disease risks from this weekend)

Damages from Monday’s frost event showed up a few days after.  About 5-10% of shoots (or leaves) on our Merlot vines which is located near the bottom of a hill… Read more

Frost event

Looks like some of us got a frost bite here and there.  I hear some people got mid-20’s this morning.  It is probably too early to tell, but most of… Read more

Diseass risks from May 6-9th

Well, it looks like finally we have some break from rains. In Winchester area, rain started around 9AM on the 6th, and although there were a few interruptions, relative humidity… Read more

Early season disease management

Looks like we are expecting three days with high chance of rain from Monday.  I sprayed our vines with mancozeb (3 lb/A) and sulfur (3 lb/A) yesterday. At this point… Read more
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