Two years ago, I shared my first blog about the Zasso electrical weed control (EWC) unit—a tractor-mounted device powered by the tractor's PTO. (My first blog about the basic of EWC and unit specifications

In spring 2023, we established two organic blocks, one with almonds and one with blueberries, to further evaluate the weed control efficacy and crop safety of the Zasso unit in newly established tree and berry systems. In these trials, we tested different combinations of speed and power to control the total current/energy flowing into the ground. This approach is similar to herbicide trials where we often test at different rates to evaluate crop...