The Physics of Frost
Growers know what frost is, but few may understand the physics behind how it develops. Such an understanding is useful when figuring out how to protect your vines from frost damage. At Shur Farms,...
Tagged: grape freeze damage
Freeze Damage Reports
An overnight frost has had contrasting impacts on grapes across Michigan. In some areas, where wine grapes predominate, the low temperatures overnight Sunday had little effect. In other areas, where juice grapes are grown,...
Vegetable Oil Provides Grape Frost Protection in Nebraska Study
In December, Midwest Wine Press published a news item about the results of a five-year research project that showed applying vegetable oil to vines significantly delayed bud break. The study was by Seth McFarland and University...
Grape Freeze Damage Extensive in Ohio, New York, Michigan
Record March warmth and severe April frosts have combined to destroy most of the Concord and Niagara grape crop in states bordering the Great Lakes from Michigan to Upstate New York. Some labrusca growers...
John Marshall: Spring Pruning and Frost Protection
As I write, it is easily the warmest March in my lifetime. In fact, it is seems like the warmest winter in history. I was watching the weather the other night and the weatherman...
How to Indentify Injury to Grape Buds
When temperatures go down below freezing, grape buds can tolerate temperatures down to about 28 F. If temperatures drop below 28 F, new buds that have emerged are subject to injury. However, the duration...