Innovative methods of weed management for Long Island vineyards

Project Overview

Project Type: Partnership
Funds awarded in 2006: $9,948.00
Projected End Date: 12/31/2008
Matching Non-Federal Funds: $10,500.00
Region: Northeast
State: New York
Project Leader:
Alice Wise
Cornell Cooperative Extension of Suffolk County

Annual Reports


  • Fruits: grapes


  • Crop Production: application rate management
  • Education and Training: demonstration, extension, on-farm/ranch research, participatory research
  • Pest Management: chemical control, competition, economic threshold, mulches - living, precision herbicide use
  • Production Systems: holistic management
  • Soil Management: green manures

    Proposal abstract:

    Control of vegetation in the strip under the trellis is a standard practice in the management of vineyards in the northeast. The goal is to minimize competition at key vine phenological stages. Excessive weed growth can impair fruit quality and quantity. Typically, weed control in this area is achieved through the use of herbicides. The infiltration of herbicides into groundwater has motivated growers to seek other less intrusive methods. Cultivation has gained favor though it has distinct disadvantages in a perennial cropping system. We propose to evaluate two less common methods of managing the area under the trellis, the use of minimally-competitive groundcovers and mowing of indigenous vegetation. We plan to establish research trials at three vineyards which will evaluate the feasibility of maintaining vegetation under the trellis in irrigated and non irrigated regimes. We intend to determine if either of these methods of vegetation management is detrimental to the yield or quality of the grapes.

    Project objectives from proposal:

    Under trellis mowing experiment
    April 2006 - establish plots
    June 2006 - petiole analysis
    May - Aug 2006 - mowing and selective glyphosate treatments as per protocol & evaluation of type and quantity of weeds in each treatment
    October 2006 - harvest and yield analysis

    Living mulch trials
    August 2006 - establish living mulch plots
    Winter 2006 - dormant pruning weights
    Spring 2007 - begin evaluations of groundcover establishment
    Summer 2007 - petiole analysis and other growth analysis (grapes)
    Fall 2007 - harvest and yield analysis
    Winter 2007 - dormant pruning weights
    Spring 2008 - evaluate ground cover establishment and weed suppression
    Summer 2007 - petiole analysis and other growth analysis (grapes)
    Fall 2008 - harvest and yield analysis
    Winter 2008 - dormant pruning weights
    Winter 2008-9 - complete data and final report

    Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture or SARE.