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

South American spongeplant (Limnobium laevigatum) is a free-floating, freshwater aquatic plant that has been introduced to the Sacramento-San Joaquin Delta. Spongeplant can propagate sexually through seed production and asexually through the development of stolons that produce new plants.

The old saying, Everything's fine until it's not, comes to mind when dealing with some tough to control perennial weeds in alfalfa production during the summertime.

There are two (2) new posts on the UC Rice Blog written by Whitney Brim-DeForest, Cooperative Extension Rice Advisor.

This is a follow up article to a blog that my colleague, Guy Kyser wrote back in 2011 titled Purple alert: Common Pokeweed. Since that time, I probably get a dozen or so calls this time of year asking, what is that huge weed growing in my yard with dark black berries and big green leaves.

In late 2016 and early 2017, the Weed Science Society of America (WSSA) organized a series of seven "Herbicide Resistance Listening Sessions" around the country.