- Author: Drew Lyon
- Posted by: Gale Perez
![PNW778, Italian Ryegrass Management in Inland Pacific Northwest Dryland Cropping Systems](https://ucanr.edu/blogs/UCDWeedScience/blogfiles/107238small.jpg)
Herbicides are an important tool for the management of weeds in crops but an overreliance on herbicides for weed management has accelerated the development of herbicide-resistant weed biotypes. Staying ahead of the biology of herbicide resistance requires a sound understanding of the process and the other tools that are available to manage weeds. To help, we recently added several new resources on the WSU Wheat and Small Grains website about the ever-evolving topic of herbicide resistance. You may want to check them out:
- Author: Bradley Hanson
![salinas field day](https://ucanr.edu/blogs/UCDWeedScience/blogfiles/107402small.jpg)
2024 Automated Technology Field Day
Learn about the growing role of automated technologies in precision weeding and other ag operations at the 2024 Automated Technology Field Day! Watch live demonstrations of automated weeders, thinners, and sprayers from several companies, and discuss with company representatives. Demonstrations will include technology appropriate for conventional and organic production.
This event will be held on Thursday, June 27, from 9:00 AM to 12:00 PM at the Hartnell East Campus, Salinas, CA on 1752 East Alisal Road, Salinas. (Follow the signs to the...
- Author: Pershang Hosseini
- Author: Tong Zhen
- Author: Matthew Fatino
- Author: Brad Hanson
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![Figure C](https://ucanr.edu/blogs/UCDWeedScience/blogfiles/107204small.png)
Broomrapes (Orobanche and Phelipanche spp.) are obligate plant parasites with a broad range of agricultural crop hosts. In non-parasitic plant species, seeds generally initiate germination when exposed to favorable conditions of temperature, humidity, oxygen, and, occasionally, light. However, for obligate parasitic plants like broomrapes, a chemical signal from the host plant is essential. Germination of broomrape can only occur under appropriate soil conditions and when the seed receives a strigolactone chemical signal released from the roots of a suitable host. Strigolactones (SLs) are carotenoid-derived hormones that play a crucial role in various aspects of plant growth and development. Fertilizers can regulate...
- Author: Ben A Faber
- Posted by: Gale Perez
![Palmer amaranth](https://ucanr.edu/blogs/UCDWeedScience/blogfiles/107133small.jpg)
Rely® 280 Herbicide Available for Use in California Avocado Groves
The California Department of Pesticide Regulation (DPR) has approved the herbicide Rely® 280 (glufosinate-ammonium) for use in avocado groves in California. Rely® 280 is a post-emergence broad-spectrum herbicide for use against broadleaf and grassy weeds. Glufosinate-ammonium is an excellent alternative to glyphosate, especially for those weeds that have developed glyphosate resistance.
The California Avocado Commission provided funding for Dr. Peggy Mauk, extension professor for subtropical horticulture at the University of California, Riverside, to conduct efficacy trials with...
/h3>- Posted by: Gale Perez
![Weed Science Society of America (WSSA) logo](https://ucanr.edu/blogs/UCDWeedScience/blogfiles/106927small.png)
Sterile Pollen Technique Shows Promise for Palmer Amaranth Weed Control
Newly published research provides a novel and sustainable weed-management strategy
WESTMINSTER, Colorado – 22 May2024 – Recently published research in the journal Weed Science shows that a sterilization technique commonly used to control insect pests can be modified to control weeds that require pollination to reproduce. More specifically, the researchers determined that employing a sterile pollen technique (SPT) could effectively disrupt Palmer amaranth (Amaranthus palmeri S.) reproduction.
Palmer amaranth remains among the most detrimental weeds in North American agriculture,...
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