- Author: Thomas Getts
- Posted by: Gale Perez
From the Lassen county Farm Advisor's Update newsletter (Aug. 2020)
Highlighting Two Uncommon Noxious Weeds
Let's keep them uncommon!
There are two species of noxious weeds I want to bring to your attention, as they are not that common in our area: rush skeleton weed (Chondrilla juncea) and sulfur cinquefoil (Potentilla recta). Both of these perennial species have relatively small populations in the Intermountain...
- Author: Chris McDonald
Wildland herbicide applicators in California have to be licensed or have be supervised in the field by a licensed applicator. The California Department of Pesticide Regulation (DPR) requires all license holders to complete continuing education hours every two years and the amount depends on the license type. Most wildland herbicide applicators have a QAL or QAC license and for those license types DPR requires 20 total hours of CE every two years with at least 4 hours of laws and regulations hours (however please review the DPR website for complete information because there are some exceptions (https://www.cdpr.ca.gov/docs/license/liccert.htm and see here for general...
- Author: Chris McDonald
Stinknet (Oncosiphon piluliferum, aka globe chamomile) is a winter annual that is spreading across Southern California and poses threats to wildlands, rangelands and agricultural areas. Stinknet was first found in western Riverside County in the early 1980's. It slowly spread to surrounding areas and by the late 1990's it was found in over a half dozen locations in Riverside and San Diego Counties. By this time, it had also spread to Phoenix. While stinknet has not been one of the fastest weeds to spread across the state (stinkwort, Dittrichia graveolens, is definitely a top contender for that spot, see here) it is now currently found in...
- Re-posted by: Gale Perez
From the Western IPM Center e-newsletter for Feb. 2020
New Risk Assessments Just Posted for Invasive Weeds
The U.S. Department of Agriculture's Animal and Plant Health Inspection Service recently posted Weed Risk Assessments for a dozen new weeds of concern.
Eleven of the 12 are already documented in the West.
The purpose of the assessments is to evaluate the...
- Author: Gale Perez
I just read Ben Faber's blog post titled "Weed ID in Your Hands" from the Topics in Subtropics blog. Ben mentions,
"Who says you can't know all those wild things growing in the field you didn't put there? Here's a chance to learn what they are for cheap. UC Publications is having a book sale and they are a deal until February 14."
These are the lowest prices I've seen for these...
