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

Woolly distaff thistle (Carthamus lanatus L.) is a yellow-flowered, spiny winter annual native to Mediterranean and central Europe. It has become a problem recently in northern California and southern Oregon.

Previously in this blog Brad Hanson discussed some of the research Kent Brittan (UCCE Yolo) and I have done with Roundup Ready canola as a crop and then evaluating it as a weed because of its seed dormancy characteristics.

A video entitled, "Alternative Cultivators for Organic Vegetable Production" is now available on YouTube.

I just read about an interesting development in the methyl iodide (Midas) controversy - the fumigant is being pulled from US use by the manufacturer. While the decision is not altogether surprising in California, I admit that I didn't expect a US-wide registration withdrawel.

The Spring 2012 edition of the Sacramento Valley Walnut News was recently made available at the Sutter-Yuba Cooperative Extension office. It's available here and is attached at the bottom of this post.