Grape Production

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.

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.

When early spring warming is followed by below freezing temperatures, grape growers keep their fingers crossed, hoping to escape freeze injury.

Potassium (K) plays a critical role in many plant physiology and biochemistry processes such as photosynthesis, osmoregulation, and enzyme activation.

Downy mildew, Plasmopara viticola, can infect berries, leaves, and young shoots. It occurs wherever it is wet and warm during the growing season.

Black rot, Guignardia bidwelli, is one of the most serious diseases of grapes in the eastern United States.

Learn about climate change predictions and how grapevine productivity and wine quality potential may be impacted.

Provides the basic steps to dormant pruning and training young grapevines in the first few years after planting. Presents steps that document objective and qualitative assessments for making pruning decisions in young vineyards.

Learn more about biofungicide use in vineyards, including a presentation of research outcomes from academic grape pathology experts and feedback on their efficacy and use from professional vineyard management specialists.

Learn essential juice and wine analysis techniques through lectures and hands-on laboratory sessions led by Penn State Extension experts.

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.