- Author: Patrick Moran
- Editor: Guy B Kyser
The giant invasive grass arundo (Arundo donax), one of the weeds targeted under the USDA-ARS-funded Delta Region Areawide Aquatic Weed Project (DRAAWP), has been re-acquainted with one of its natural enemies imported from arundo's native range. A tiny insect called the arundo armored scale (Rhizaspidiotus donacis) has been successfully released in the Sacramento River watershed and in the Delta.
Arundo forms dense stands across at least 10,000 acres in California, and over 100,000 acres in other arid riparian areas such as the Lower Rio Grande Valley of Texas and Mexico. Other control methods such as herbicide application, mechanical removal, mowing or burning have been used to reduce arundo populations in...
- Author: Sarah Morran
- Posted by: Gale Perez
Annual bluegrass is a common winter growing grass in agricultural and urban environments. It is a well-known weed of turfgrass systems but its ability to grow in a range of environments makes it an increasing problem for other agricultural systems. Annual bluegrass has a short life cycle which may range from annual to perennial, seeds can germinate rapidly and multiple times in a growing season and has a high degree of survival when defoliated or trampled (Galera, Chwedorzewska et al., 2015).
All of these traits make chemical control an attractive and primary mode of management for annual bluegrass. This is true for turfgrass systems where managers use regular applications of PRE and POST herbicides and orchard systems where...
- Author: Brad Hanson
A quick note to share a link to our (semi) regularly updated "Herbicide Registration on California Tree and Vine Crops".
Click here for a link to the PDF version on the Weed Research and Information Center page (this is probably your best bet for the most up-to-date version). I've also attached the pdf version at the bottom of this posting as well as the low-resolution image right here. --->
There were quite a few updates to this version compared to the last one I did in early 2016. This reflects both real activity in label expansion as well as...
- Author: Brad Hanson
A position announcement I shared in October (http://ucanr.edu/blogs/blogcore/postdetail.cfm?postnum=22336) was re-released last week. The new search ends on April 18, 2017.
Job announcement for the Associate Director / Field Research Coordinator for the Western Region IR-4 Program.
Position is located at the UC Davis campus.
For those unfamiliar with the IR-4 program, this is a really important program funded by the USDA and the Land Grant Universities to help ensure specialty crop growers gain registered uses of reduced risk crop...
- Author: Stephanie Parreira
According to the Centers for Disease Control and Prevention (CDC), poisoning is the number one cause of injury-related death in the United States, and 1073 people in California were poisoned by pesticides in 2014 alone. Each year since 1962, National Poison Prevention Week has taken place during the third week of March, to raise awareness about avoiding these tragedies. No one wants their workers or family members to experience illness or death from pesticide exposure, so the UC IPM Pesticide Safety Education Program (PSEP) would like to bring special attention to preventing pesticide poisoning this week. The program also published a new edition of