Orchard Floor Management Field Day
Demonstration and Herbicide Trial
Located at a Yolo County walnut and almond orchard
Just north of Co rd 98 and Co. rd. 30 (see map)
10 – 11 am Wednesday, April 27, 2011
1 hr CE credit
Weed Experts: Brad Hanson, Weed Specialist, Plant Sciences, UC Davis and John Roncoroni, UCCE Weed Science Farm Advisor, Napa County
Orchard Support: Carolyn DeBuse, UCCE Orchard Systems Farm Advisor, Solano and Yolo Counties
The trials were designed to evaluate premium residual herbicides plus burndown materials for dormant season application in tree nut crops. Several newer materials are being compared to the old standbys for their relative...
- Author: John A Roncoroni
Pacific Mosquitofern, (Azolla filculoides) often referred to as Azolla, is native to California. It is considered a desirable component of natural habitats and an important food source for waterfowl. Azolla is a floating aquatic fern that spreads by stem fragments and spores. Azolla as being up to 5cm (2 inches) long, but can be as small as ¼ to ½ inches.
Azolla is often misidentified as duckweed (Lemna spp), another common small floating aquatic plant. Azolla is initially green, like duckweed, but soon turns a red or brown color. This coloration is caused by...
UC Davis weed experts contribute to pioneering Encyclopedia of Biological Invasions
Cooperative Extension Weed Specialist Joe DiTomaso, Emeritus Professor Robert Norris, and Plant Physiologist Lars Anderson with USDA-ARS Exotic and Invasive Weeds Research are among the international experts who contributed to a soon-to-be released encyclopedia on topic at the forefront of global ecology—biological invasions, or organisms that come to live in the wrong place. This pioneering book, Encyclopedia of...
- Author: Guy B Kyser
Last week I visited one of my favorite experimental sites: the SMUD wind farm in the Montezuma Hills, at the south edge of Solano County. The site overlooks the Sacramento River where it’s a half-mile wide. If you tripped over the back end of Plot #60 and rolled down the hill into the river and floated down through the delta for twenty miles, you’d get to Benicia and the Ghost Fleet.
This is a weird landscape of treeless hills dotted with black cows. To the west is a staggered row of four-hundred foot wind turbines, slowly rotating (if they’re turning fast, then it’s too windy to spray weeds). To the east is a twenty-acre patch of tall, spiny, silvery-colored artichoke thistles. I am here to kill...
**EVENT DATE CHANGE**
Event: Weed Science School 2011
Date: Sept. 6-8, 2011 (not Sept. 19-21, 2011)
Location: UC Davis