- Author: Lindsay M. Jordan
Capitalizing on a wet winter, many cover crops established very well in San Joaquin Valley vineyards this year– it has not been uncommon to see stands of barley, mustard, and other species grow taller than 3 feet in vineyard interrows. A robust cover crop planting can offer many benefits to your vineyard site. Winter cereals can break up compaction with their fibrous root systems and legumes can fix nitrogen and contribute to vine nutrition. All cover crop plant species can be used to protect the soil surface from erosion and crusting, improve water infiltration, and provide structure-building organic matter to the soil when mowed or cultivated.
However, it has not only been intentionally seeded cover crops that took...
Do weed populations change during a drought? Does drought favor certain species? Does annual or perennial species matter? During this four year period of drought in California, have they changed? What are the populations of annual and perennial weeds? With a limiting growth factor, in this case water, weeds become more prominent and which of them will or could disappear?
In urban landscapes, where turf grass areas are being renovated, or in non-irrigated land that has been farmed, but furloughed, or in non-cropped roadsides or wasteland, are we seeing life-cycle species shifts? Or is it that we see a loss or decreased competitiveness of annual species, thus perennial species can be observed?
I will give the example of...
- Posted by: Gale Perez
Napa, Calif.—Last week John Roncoroni, a Napa County UC Cooperative Extension weed science advisor, held a field demonstration about the efficacy of herbicides newly registered for vineyard application. He had laid out 25 treatment plots and rated the herbicides for weed control in vineyards./span>
- Author: Gale Perez
At this week’s Monday Afternoon Weeders (MAW) meeting, Brad Hanson shared the following article from the Sacramento Bee: Stinkwort's fast growth could threaten California's wine growers
CBS picked up the story: Wine Country Growers Worried about Stinky Invasive Weed
Then there’s Jeannette Warnert’s blog post, Unwelcome weed 'stinkwort' spreading quickly in California.
Lastly, here is the
- Author: Jeannette E. Warnert
Stinkwort made its first California appearance in 1994, but remained quite rare...