
Show Notes
Lasers may offer a chemical-free way to deter bird pests in vineyards and other agricultural systems. George Gallagher, Department Head of Animal Science at Cal Poly San Luis Obispo, explains why bird pressure goes beyond crop loss, raising concerns about disease risks like salmonella, E. coli, and transmission of avian influenza. He shares results from a controlled study using a handheld laser, aimed at birds' feet, to measure how long it took them to respond. The research showed that different birds react differently. George highlights the importance of animal safety and the role of species-specific vision when evaluating new deterrent tools. Listen through the end to hear if the lasers work on rats.
Resources:
58: Barn Owls 114: Designing a Vineyard for Year-Round Sheep Grazing 272: 30 Gophers a Night: Why Barn Owls Belong in Your Vineyard Cal Poly Animan Science Department George Gallagher George Gallagher |Amanote Research George Gallagher | Research Gate Tactical to Practical: The Human Component of Human-Wildlife Conflict Resolution
Vineyard Team Programs:
Juan Nevarez Memorial Scholarship - Donate Online Courses – DPR & CCA Hours SIP Certified – Show your care for the people and planet Sustainable Ag Expo – The premiere winegrowing event of the year Vineyard Team – Become a Member
More from Sustainable Winegrowing
By eliminating foil capsules and switching to lighter bottles, SAMsARA cut waste and emissions—reminding wine lovers that great wine doesn't need extra packaging. Resources:
Imagine one vineyard machine that can prune, harvest, monitor vine health, and help guide irrigation decisions throughout the season. Manoj Karkee, the Norman R. and Sharon R. Scott Professor of Agricultural Science at Cornell University, explores how artificial intelligence, robotics, and cyber-physical systems can make farming more efficient and economical. Learn how multipurpose and soft robotics can tackle vineyard tasks, how cameras and sensors feed AI models to guide crop management, and how human-robot collaboration reduces labor, input costs, and resource use.
When we talk about sustainability in wine, practices like conserving water, enhancing soil quality, and supporting biodiversity often come to mind. But sustainability is about more than caring for the land; it's about caring for the people behind every bottle.
Healthy soils are built through years of management decisions and sometimes rethinking old practices. Jim Lincoln, General Manager of Beckstoffer Vineyards in Napa Valley, shares how his approach to weed management has evolved from cultivation and herbicides to mowing, sheep grazing, cover crops, and no-till practices. Learn how these changes have improved under-vine soil health, influenced weed populations, and affected costs. Jim discusses the real-world tradeoffs of building soil health and the opportunities it creates to improve fruit quality.