The rain event started on the night of the 8th resulted in about 14 hours of wetness with about 65F in average temperature. This was infection risk event for downy… Read more
Many people in northern VA are about to see blooms (our Chardonnay vines are trace bloom as of June 2nd, the one on the picture is one of the few… Read more
A quick update: A series of rain event since 5/29 around Winchester area produced two Phomopsis infection events and one black rot infection events. Two consecutive humid nights probably promoted… Read more
We had a short shower event last evening; however, it was short and relative humidity did not stay high for a long time. Thus, it was not a major disease… Read more
There were a few isolated light showers passed around Winchester area early this morning, resulted in 6 hours of wetness with low 60’s average temperature. This was a low infection… Read more
Another thunderstorm went through Winchester area last night. Although the first few hours were warm, the temperature dropped to low 50’s during the night. The total wetness was 15 hours… Read more
A thunderstorm went though Winchester area yesterday afternoon, and since then the cloud cover kept RH very high. So far we observed 17+ hours of wetness, and the average temperature… Read more
Looks like we will rains throughout the week. Our chardonnay vines are about 1-2 inches shoot length, and we have been spraying mancozeb and sulfur this morning to provide protection… Read more
Our 5-yr old Chardonnay is about 50% bud break stage as of today. At this time of the year, the number-one concern is Phomopsis cane and leaf spot. They produce… Read more
Our 5-yr old Chardonnay is still in the mitten stage, only a few broke buds. At least we do not see the risk of frost in the 10-day forecast… Once… Read more