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Updated: June 3, 2024
Minimizing Herbaceous Character in the Vineyard
Herbaceous aroma in wines, such as “bell pepper” or “stemmyness,” is caused by a family of chemicals known as methoxypyrazines (MPs).
Updated: April 12, 2024
Pre-Plant BioRenovation and Soil Conditioning For New Vineyards and Small Fruit Plantings
Pre-planting renovation and soil conditioning information for new vineyards and small fruit agriculture such as grapes, strawberries, and blueberries.
Updated: April 9, 2024
Nematode Sampling
Nematodes are worm-shaped animals found in many different environments and 10% of known nematode species are parasites of plants. Plant-parasitic nematodes are thread-like, virtually invisible to the naked eye when in the soil or within plant material, and range from 1/50 to 1/8 of an inch (0.2 to 4.0 mm) long with a diameter of about 1/1000 of an inch (30 µm).
Updated: April 3, 2024
Round Two: Multi-Colored Asian Ladybeetle (MALB) Management For Grape Growers
The previous “Timely Viticulture” addressed some basic information on MALB and this message will concentrate on management tactics. Some sections of this message were intentionally repeated, but there is new information throughout.
Updated: February 8, 2024
Spray Program for Multi-Small Fruit Plantings
Multi-small fruit spray program for the control of major small fruit pests and diseases.
Updated: September 21, 2023
Timely Viticulture
Timely Viticulture is an electronic newsletter designed to remind grape producers of seasonal vineyard needs and considerations throughout the year.
Updated: September 21, 2023
Spotted Lanternfly (SLF) II - Scouting and Management
The Spotted Lanternfly (SLF) is now confirmed in Cecil and Harford Counties in Maryland, and has the potential to be a very significant pest in vineyards. For background information, please see the TimelyVit Spotted Lanternfly (SLF) I—Background, for basic information. This Timely Viticulture was created to give growers information of how to scout for the pest and some management options and strategies.
Updated: August 29, 2023
Pre-Harvest Disease Management and Late Season Bunch Rots
Many vineyards are approaching or already within 30 days of the anticipated harvest date for early wine grape varieties. During this window, grape berries are becoming very susceptible to a variety of late-season rots, such as ripe rot, sour rot, Botrytis bunch rot, and other “secondary-fungi” associated with bunch rots.
Updated: August 23, 2023
Disease Management–Botrytis
Botrytis is a major disease threat as harvest approaches. Botrytis cinerea is a fungus that affects many plant species, especially wine grapes, where it is commonly known as Botrytis bunch rot or gray mold.
Updated: August 23, 2023
Spotted Lanternfly (SLF) I—Background
The Spotted Lanternfly (SLF) is now confirmed in Cecil and Harford Counties in Maryland, and populations in Pennsylvania, New Jersey, Delaware and Virginia have been growing. The pest has been impacting vineyards in Pennsylvania. What is clear at this junction is that (1) grapevines are a favorite host of this pest and, (2) its feeding damage coupled with winter cold stress can cause vine death. At ground zero in Pennsylvania, feeding from this pest, combined with the moderately cold winters of 2017/18 and 2018/19 has done significant damage to multiple commercial vineyards.
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