Upcoming Produce Safety Training (November 6-7, 2017)

The Vermont Agency of Agriculture and UVM Extension are co-sponsoring a VT-Style Produce Safety Alliance (PSA) Grower Training on Tue-Wed, November 7 & 8, 2017 (8:30am – 5:00pm) at the VYCC Monitor Barn in Richmond, VT. This is the official required training for FSMA covered farms (Click here to determine whether your farm may be […]

Improved Ventilation for High Tunnels

I have received many inquiries about how to improve ventilation of high tunnels from growers with tunnels that have only roll-up sides. The issues they are facing tend to be either high temp, high humidity or both, leading to plant stress or disease. These situations tend to be in less than ideal sites for ventilation […]

Rats (and other rodents)

Download the PDF version of this page here! When considering storage rooms, wash and pack sheds with growers there is one topic that is sure to strike a nerve: RODENTS. This document is intended to provide summary information about measures you can take to reduce crop losses from these pests.  It is the result of […]

Pumps and Pipes

“Will the 007 be enough?”  is a common question in early spring as greenhouses around the region fire up and we do our best to keep seed trays and their cargo warm on the still-cool nights.  My mind instantly goes to “which movie?” And then I crash back to earth and realize this is a […]

Thermostats for Agriculture

I am often asked by growers and processors to recommend a thermostat for greenhouse, cooler, or postharvest process use.  There are many to choose from and their specifications can be confusing. It is important to remember just what a thermostat does. It is essentially no different from the light switch on the wall with one […]

Update on Heating Greenhouses with Biomass

This project demonstrated the use of biomass heating for greenhouse vegetable production at sites across Vermont. From 2008 through 2015, 25 growers received cost-share funds for greenhouse biomass heating systems.

Calculating Greenhouse and High Tunnel Heat Loss

I am often asked by growers to help estimate what size heater is needed for a greenhouse or what minimum temperature their high tunnel will reach at a certain outside temperature.  Below are some tools to help you do this yourself.  I have presented them in a range of complexity depending on how much you […]

LED Lights – Status, Cost/Benefit and Pro’s and Cons

I have been receiving several inquiries recently on supplemental lighting for greenhouse production. The most common question is “Should I install LED lights to support growing?” I have found one report to be the most complete and current on this topic and wanted to share it here. Economic Analysis of Greenhouse Lighting: Light Emitting Diodes […]