- Author: Sonia Rios
As a farm advisor many growers will ask, “What is that in my grove- horseweed or fleabane?” These two weeds have been running rampant in Southern California, as well as other parts of the state and can be seen in every cropping system imaginable. Their population numbers can be alarming and can start to become troublesome to growers as they can easily become A challenge to control if left untreated. These two members of the of the Conyza family are particularly fond and thrive in permanent tree crop environments due to lack of tillage and lack of a crop rotation schedule due to the trees permanent...
- Author: Lynn M. Sosnoskie
- Author: Brad Hanson
March 16, 2016. Editor's note.
I recently was informed of an error in the chart Lynn included in this post from December 2018. While Broadworks (ai = mesotrione) herbicide IS registered in several stonefruit crops, it is NOT currently registered for use in peach. This was entirely my error.
I struck out inclusion of peach in the text below and replaced the chart with an updated version in this post. Remember to always read a current label before applying any pesticide as labels change (or can be misread as was...
- Author: Brad Hanson
The journal California Agriculture recently published a special issue on research and extension efforts related to the University's Endemic and Invasive Pests and Diseases strategic initiative.
The subtitle of the special issue is: How UC and it's collaborators detect, contain, and manage (pests and diseases). There are six articles under three headings: Excluding Pests and Pathogens, Managing Newly Established Pests, and Maintaining Long-Term Management. Table of contents available HERE.
A group of weed scientists reviewed the California status of herbicide-resistant weeds...
- Author: Brad Hanson
Below is a recent press release from the Weed Science Society of America (WSSA) announcing a new fact sheet addressing misconceptions about the so-called "superweeds".
I alluded to this few weeks ago in my post "Can herbicide resistance move from crops to weeds?" when I discussed the potential for gene flow from crops to weeds and how that might or might not affect the development of herbicide-resistant weeds. That earlier post was basically the working draft of background information provided to the WSSA committee that developed this new fact...
- Author: Brad Hanson
Meeting announcement from the Weed Science Society of America. Brad
To Those Concerned About the Explosion of Herbicide-Resistant Weeds,
Attached you will find more information regarding the upcoming 2nd Herbicide Resistance Summit. In addition to this information, a few notes:
- For those who will not be able to attend the meeting in Washington, a live webcast will be available. Check the WSSA website for the link to this webcast at www.wssa.net .
- For those participating via webcast, there will be an email address provided for submission of comments....