- Posted By: John A Roncoroni
- Written by: John Roncoroni
Field Bindweed (Convolvulus arvensis)
The late spring rains that fell in Northern California seemed to benefit some plants more than others. One weed that appears to be doing very well this year is Field bindweed. Field bindweed (Convolvulus arvensis), is a perennial weed that spreads by seed, creeping roots and rhizomes. You may call it morningglory or wire weed. It has arrow-shaped leaves and white to pink trumpet-shaped flowers and can grow spread along the ground from early spring until late fall. Bindweed’s creeping roots can penetrate the soil to more than 10 feet and send up vertical shoots that look much like seedlings, but unlike seedlings, are part of a much larger plant. Studies...
- Posted By: Brad Hanson
- Written by: Anil Shrestha, Kurt Hembree, and Steven Wright
Someone asked me a question this morning about management option for hairy fleabane and it reminded me of a nice publication that Anil, Kurt, and Steve put together a couple years ago. See ANR Publication 8314 here: http://ucanr.org/freepubs/docs/8314.pdf It is also attached as a pdf at the bottom of this post.
These two weeds have been around for a long time but are becoming more widespread throughout the Central Valley and other parts of California in large part due to the selection of glyphosate-resistant biotypes. Both weeds are early invaders of disturbed areas but do not tolerate too much additional tillage because the seedling do not emerge from very...
- Author: Brad Hanson
I spoke last week at the Central San Joaquin Valley Summer Almond Meeting (in Merced, CA) as part of a program that encompassed the almond industry, insect pests, disease managemment and weed control among other topics. The organizer, UCCE Farm Advisor David Doll, asked me to talk about herbicide selection, maximizing efficacy, and minimizing drift.
It was a good meeting and I thought I'd share my slides for others to read and consider.
(Click on the slide to open in a full screen view. Click on the arrow on the right side of the frame or use the arrow keys to scroll through the slides)
Related info:
A few weed...
- Author: Brad Hanson
There is a lot of information out there! While looking for something else, I ran across a Western Farm Press article from last fall about Roundup Ready canola growing on roadsides etc. I've heard Doug Munier talk about this issue and I'm sure many of you have too. I though Harry Kline did a nice job of summarizing the issue so I thought I'd revisit it today.
The article can be found here: http://westernfarmpress.com/management/rr-canola-evolves-vexing-weed
Several years ago, Doug Munier (UCCE in Glenn Co) and Kent Brittan (UCCE in Yolo Co) were part of a team testing canola as an alternative crop in California -...
- Author: Brad Hanson
I gave an overview presentation on my research program today as part of the Plant Science Departmental Seminar series at UC Davis. I thought I'd post it here for several reasons:
1. There might be someone out there who is just dying to know what I do - here you go!
2. I thought the software that I used (prezi.com) was pretty slick and made a nice presentation (gasp - not PowerPoint?!).
3. I spent a bunch of time learning about this (pretty easy to use) software and wanted to see how the "embed" function worked (HTML code is generated and makes it easy to embed the presentation in online vehicles like blogs, webpages, and social media tools).
4. A "program...
