- Author: Ian M Grettenberger
- Author: Kevin Goding
- Author: Rob Wilson
During the 2021 season, we conducted an insecticide trial evaluating a new insecticide being developed for a range of crops. It could be a very good fit for alfalfa weevil given the efficacy we saw as well as the critical need for novel modes of action for alfalfa weevil management. The need for more modes of action comes from the growing issue with pyrethroid resistance in alfalfa weevils. Across the US (an in California), there are now populations of pyrethroid-resistant alfalfa weevils. We are addressing this in a separate project, focusing primarily on resistance to lambda-cyhalothrin. New modes of action could allow for rotation, something that is very difficult given that currently, effective options are mainly limited to...
- Author: Nicholas Clark
- Author: Lynn Sosnoskie
- Author: Joy Hollingsworth
2019 Annual Alfalfa and Forage Field Day
Thursday, September 19, 2019
UC Kearney Agricultural Research and Extension Center, Parlier
9240 S. Riverbend Ave.
NO COST TO ATTEND
Get ready for a half day of forage research demonstrations and educational presentations in the field and in the classroom. The meeting will begin early morning and finish through lunch.
Lunch will be...
- Author: Nicholas Clark
This year's Alfalfa and Forage Field Day held on September 19, 2018 at the Kearney Agricultural Research and Extension Center in Parlier, CA, was another success.
The presentations and handouts from that day are now available on the University of CA Alfalfa and Forages website. Click here to reach the page where you can download individual presentation slides and handouts.
ABOUT THE EVENT
Industry sponsorship of this event reached an outstanding level, and the meeting will be funded for another year without the need to reach out to...
- Author: Nicholas Clark
- Contributor: Shannon C. Mueller
- Contributor: Daniel H Putnam
- Contributor: Matt Quinton
As the alfalfa hay harvest season wraps up and we get in gear to attend the November 2017 Western Alfalfa and Forage Symposium in Reno, NV, we're making the presentations and handouts from the 2017 Kearney Alfalfa and Forage Field Day available.
Click here to select presentations and handouts to download.
The Alfalfa and Forage Field Day was held this year on September 20, 2017, at the Kearney Agricultural Research and Extension Center (KAREC) in Parlier, CA. Activities during the half-day event included a tram tour of ongoing forage research projects followed by a few hours of classroom style presentations by UC Farm...
- Author: Nicholas Clark
Last year many forage sorghum fields were heavily infested and damaged by Sugarcane Aphid (SCA) (Figure 1) – Melanaphis sacchari – feeding. Most calls came in around early July of 2016 with reports of aphids that were not well controlled using broad spectrum materials such as malathion, chlorpyrifos, or dimethoate. This triggered investigations which confirmed the invasion of the new species of aphid to California.
Based on field research and extension material from the US states in the South and Southwest, some basic guidelines for spotting, scouting, and treating SCA can be outlined for potential best management practices in our CA forage sorghum production system.
Identification:...
