University of Maryland Extension

vineyard

MSHS 2019 Summer Tour

Wednesday, Jul. 10, 2019 - 8:30am to 4:00pm
Begins at Alson H. Smith Center
Our annual summer orchard tour will be held in the Shenandoah Valley focusing on fruit production and marketing. The tour will begin at the Virginia Tech REC in Winchester. After that we will tour two large, multi-generational family farms that are involved in wholesale and retail fruit production...

Nitrogen Fertilization in the Vineyard

Timely Viticulture: Pre Bloom
The annual goal in the established vineyard is to have the vines fill their allotted trellis space, top out vegetative growth just above the top wire at veraison, and produce a crop that is in balance with the vegetative vigor. Regretfully high water availability and high nitrogen (N) content of...

Canopy Management - Shoot Thinning and Positioning

Timely Viticulture - Pre-Bloom
Managing excessive vine vigor is one the greatest battles in Eastern viticulture and this problem is exacerbated in seasons with high rainfall and warm spring temperatures. Many vigorous varieties and variety/rootstock combinations are quickly beginning to increase in shoot length. Obviously there...

Red Leaves in the Vineyard—Diagnosis and Management

Timely Viticulture Timeline: Pre-Bloom to Post Harvest
It is not uncommon to walk a vineyard row and find some vines with red leaves somewhere in the canopy. Red leaves can appear at any time in the growing season and are caused by many biotic (viruses, bacteria and fungus) and abiotic (nutrient deficiencies, cold injury and damage to root systems, etc...

The Spotted Wing Drosophila (SWD) - Part 2: Management

Timely Viticulture: Pre Harvest
The Spotted Wing Drosophila (SWD) is a small vinegar fly with the potential to damage many fruit crops, particularly thin-skinned fruit. SWD was first detected in the western United States in 2008 and has already become a major pest of many fruit and berry crops in Maryland, with potential to cause...

The Spotted Wing Drosophila (SWD) - Part 1: History, Background, and Damage

Timely Viticulture: Pre Harvest
History The Spotted Wing Drosophila (SWD) is a small vinegar fly with the potential to damage many fruit crops, especially thin-skinned fruit. SWD, or Drosophila suzukii, is native to eastern Asia. Most species of vinegar flies attack overripe or damaged fruit. However, SWD is unique as the female...

Grape Berry Moth

Timely Viticulture: Mid Season and Pre Harvest
Although the Japanese beetle is rapidly moving to the top of the list in many areas of Maryland the grape berry moth (Paralobesia viteana; GBM) has typically been the most significant insect pest in the vineyard due to its direct and indirect damage to the berries and clusters. GBM is native to...
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