Grape Production

A manual designed for extension workshops that details laboratory procedures for juice and wine analysis, providing practical guidance for individuals involved in Pennsylvania's wine industry.

Traditional spraying systems in orchards and vineyards operate at a constant rate using a standard nozzle setup, which can be inefficient due to variable row spacing and canopy sizes.

A recent webinar reviewed the principles of assessing and managing nutrient status in mature vineyards.

A brief review of fruit zone leaf removal to manage grape diseases and fruit composition.

Join us for a review covering spotted lanternfly observations beyond vineyards, followed by its specific impact on grapevine health and commercial vineyard management.

Discover the top alcoholic beverage trends for 2026—from flavors to consumer habits—in this free webinar for producers, sellers, and enthusiasts.

Herbicides based on plant growth regulators (PGRs), or "auxin" herbicides, such as 2,4-D, dicamba, triclopyr, etc., are known for creating high-risk drift scenarios that can impact the health and productivity of unintended target crops.

Explore USDA-NIFA's FRAME Networks project on fungicide resistance. Uncover patterns, tools, and resources. Essential for vineyard professionals.

This guide reviews general herbicide drift fundamentals, including how to manage drift, and is aimed at herbicide applicators and grape and wine producers.

In this article, we will discuss the use of early leaf removal (ELR), a canopy management practice implemented around bloom.

This article will focus on shoot thinning, the first canopy management practice of the growing season.

Provides the basic steps to dormant pruning and training young grapevines in the first few years after planting.

Explains the details of using the Watson training system for bunch wine grapes.

Explains when and what to prune, how much to retain, pruning methods, challenges addressed during dormant pruning, and pruning tools.

Discusses why, when, and how to thin shoots in bunch grape vineyards.

Provides details on the range and causal conditions, symptoms and identification, and management of grape sour rot in eastern U.S. vineyards.

Explains when, how, and why growers should sample grapevine tissues for nutrient analyses.

This article provides information on selecting cultivars, purchasing and planting grapes, nutritional requirements, pruning, training/trellis systems, and pests.