Farmer-Led Evaluation of Deer Fencing Systems to Improve Farm Viability in Southern New England

Commodities

Practices

• Education and Training: decision support system, farmer to farmer, on-farm/ranch research

Deer overpopulation is a major and ongoing production challenge for farmers across Southern New England, causing significant crop losses that directly impact farm viability. While fencing is widely recognized as the most effective solution, farmers face a confusing and costly range of options with little practical guidance on what actually works. As a result, many are forced to make expensive infrastructure decisions without clear information on cost, performance, or long-term success.

This project will address that gap by documenting and comparing deer fencing systems across working farms in Southeastern Massachusetts and Rhode Island. The project's objective is to generate practical, farmer-informed guidance that helps farmers select fencing systems that effectively reduce crop loss while remaining economically viable for their specific operation. SEMAP will work with a cohort of 20 farms to document fencing designs, materials, installation processes, costs, and maintenance requirements. A subset of farms will track deer intrusions, fence failures, and crop loss throughout the growing season to provide additional performance data.

Findings will be synthesized into a comprehensive deer fencing toolkit that includes case studies, cost comparisons, design considerations, common failure points, and a decision-making framework. The toolkit will be made available online and in print and will serve as a practical resource for farmers making fencing investment decisions.

Project results will be shared through on-farm workshops, conference presentations, a farmer roundtable and SEMAP's regional outreach networks. By combining applied research, farmer experience, and targeted outreach, this project will improve farmer decision-making, reduce crop loss, and strengthen the long-term viability of farms across the region.

Project's Focused Inquiry

We aim to document and compare fencing systems across working farms in Southeastern New England to identify which designs most effectively reduce crop loss across a range of farm types, budgets, land tenure situations, and labor capacities, and to understand the installation, maintenance, and contextual factors that determine whether a system succeeds or fails in the field.

Objective 1: Document deer fencing systems across a diverse cohort of regional farms.

SEMAP will systematically document fencing designs, materials, installation processes, total costs, land tenure context, crop mix, maintenance requirements and overall farmer overall fence satisfaction for 20 farms. A subset of 10 farms will collect data on deer intrusions, fence failures, and crop loss events. Documentation will be structured around a standardized data collection tool developed with farmer input.

Objective 2: Analyze and synthesize findings
Identify the key factors that influence fencing performance and analyze how these variables affect cost, durability, and effectiveness under real farm conditions.

Objective 3: Develop a practical deer fence toolkit
Develop a deer fencing toolkit that synthesizes field data, farmer experience, and comparative analysis into clear, decision-ready guidance for selecting and implementing fencing systems. The toolkit will include cost breakdowns, installation guidance, common failure points, and a decision-making framework. The toolkit will be available online and in print.

Objective 4: Increase farmer knowledge and adoption of effective deer management strategies

SEMAP will host two on-farm fencing workshops, one farmer roundtable to present project findings, and a panel presentation at a regional agricultural conference. These events will reach farmers beyond the project cohort and create opportunities for peer learning and ongoing knowledge exchange. Outreach materials will extend the toolkit's reach through SEMAP's regional networks and partner channels.