Testing New Herbicide Product Taylor Hillman May 21, 2014Specialty Crops, Tree, nut & vine crops, Water, Weather Experts are looking at the effectiveness of an herbicide that is new to the walnut industry. The University of California Cooperative Extension held a field day last week and one of the trials showed significant results on weed suppression. Testing New Herbicide Product Sponsored ContentParka Helps California Citrus Growers Protect Fruit Quality and PackoutSeptember 4, 2026CIR Agriculture Harvester ProductsJuly 1, 2026CIR Agriculture Harvester ProductsMarch 1, 2026