UC Weed Science (weed control, management, ecology, and minutia)

In order to prevent herbicide damage in young trees, especially from postemergence herbicide, standard pomological practice is to apply white latex paint to the bottom 2 to 3 feet of trunk of newly planted trees, before applying herbicides.

From the Western IPM Center November 2019 newsletter... Kochia is a tumbling weed plaguing growers and ranchers from Central Canada to West Texas. It's salt tolerant, heat tolerant, cold tolerant, said Kent Davis, a crop consultant with Crop Quest in Colorado.

On June 6, 2019 UC Cooperative Extension (UCCE) and burn boss Phil Dye led a 2.7-acre prescribed burn on a ranch in Bitterwater.

Many factors make weed management on federal public lands an interesting challenge. In September I was invited to join one of the Sierra National Forest Rangeland Management Specialists to explore a medusahead infestation in one of the grazing allotments she manages.

In late October we made our monthly trip to sample curlyleaf pondweed in the Sacramento-San Joaquin Delta. On an island in the lower San Joaquin river, we spotted goats eating waterhyacinth (Eichhornia crassipes) and waterprimrose (Ludwigia sp.) along the shoreline.