A Guide to Preparing High Tunnels for Extreme Weather

Compiled from VVBGA farmer input by Becky Maden, Chris Callahan, Vern Grubinger, and Andy Chamberlin. Introduction High tunnels and greenhouses provide protection for crops, extend the growing season, and improve yield and quality. However, climate change brings both a higher frequency and increased intensity of extreme weather events. It is important to think about how …

Top 5: Working with Contractors on a Postharvest Project

Key Takeaways Introduction Construction projects are both exciting and daunting. There’s great joy in dreaming about a new space or a renovated work area, but there can be a long windy path full of dread and stress between what you have now and what you hope to have in the future. Working with a contractor …

Managing Humidity and Condensation in Coolers

Many winter storage crops love high humidity and low temperatures. Others like low humidity and warmer temperatures. It can be a real challenge to achieve the right balance. As we make air cooler, it holds less water vapor so the difference between high humidity and condensation (rain) becomes less and less. So, it is not …

Duijndam Machines – Used Equipment from Europe

Way back in 2019, we visited Duijndam Machines in The Netherlands. We had heard from growers in the northeast about this fantastical place where used equipment from European growers goes, not to die, but to be reborn. We had to see it for ourselves. And to bring home some video of our tour. The video …

Exclusion Netting for Spotted Wing Drosophila (SWD)

If you grow berry crops you’ve most likely heard of spotted wing drosophila (SWD, Drosophila suzukii). This invasive pest has caused significant crop losses in the region since at least 2011. While there are chemical pesticides with varied efficacy, one practice that we’ve focused on is physical exclusion with netting. Pioneered in the region by …

Starting-up Heaters without Getting Burned – Greenhouse and High Tunnel Heater Safety Checks

As the days grow longer and warmer, we can’t help turning our attention to germination chambers, propagation houses, greenhouses, and high tunnels. It is an exciting time of year, but also a time to take some extra care with heating appliances. Before firing up the heaters in your heated growing spaces, take the time to …

Preventing Freezing in Produce Coolers

Occasionally, during longer cold snaps, we receive a lot of questions about storage crops freezing in coolers. This post summarizes some ideas for preventing freezing. Summary Seal up the Cooler Box The main culprit in freezing is most likely infiltration of cold, outside air into the cooler.  If you’re seeing freezing in one area, there …

Warm Rooms for Storage Crops & Freeze Protection for Coolers

Some crops like winter squash and sweet potatoes are ideally kept in “warm” rooms for long-term storage. It is also helpful to have some freeze protection even in cold storage rooms during the winter months when outside temperatures drop below the storage temperature. The information below should help accomplish both of these needs simply and …

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