Disease risks from yesterday’s rain

We received about 0.02 inches of rain at Winchester.  Showers came in and out since around 1:40 PM until 5:00 PM (3 hrs 20 min).  The air was dry during… Read more

Disease risks from today’s rain

As with other regions in VA, Winchester area observed a series of thunderstorms this morning.  It started from 2:40AM and lasted until 7:30AM or so.  The RH was high (>90%)… Read more

2011 Vineyard meeting handout

We will have this year’s first vineyard meeting tomorrow at De Vault Vineyard in Concord, VA.  If you have a time, please stop by.  The meeting will start from 11AM.… Read more

2011 Fungicide Spray Guide for Bearing vines, 2nd Ed.

Here’s an updated version of 2011 spray guide.  It is essentially the same as the one went out with the Viticulture Notes.  Typos, some minor items, and grammatical mistakes were… Read more

Disease risks from a wet weekend

Winchester area received a series of rain event since the morning of 4/22/11.  The first event started at 9:40AM on 22nd, and lasted until 12:40PM on 23rd.  Since the relative… Read more

Disease risks from today’s rain

Winchester area received a light rain (0.02 inches) during early hours today.  It started around 1AM and even though the rain stopped soon, the relative humidity was above 90% until… Read more

Disease risks from yesterday’s rain

At Winchester, we received 0.25 inches of rain on 4/19/11.  It started from 9:20AM and lasted until 4:20 PM or so, and the relative humidity was above 90% until 5:00… Read more

What may happen on a vineyard floor this time of the season

During this winter, I received a few questions about a sanitation (= removal of infected tissues) as a part of disease management.  Our understanding is that most of the grape… Read more

Disease risks from yesterday’s rain

The rain events on 4/16/11 at Winchester started on 4:20AM and lasted until 9:40PM or so, and then the relative humidity was high (>90%) until 10:20PM.  Thus, this potential infection… Read more

2011 vineyard meeting series

We will have this year’s first vineyard meeting on 4/27/11 at De Vault Vineyards.  I will present seasonal reminder on grape disease management and Tony and/or Tremain will provide viticulture… Read more
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