- Author: Michael Rethwisch
- Author: Ian M Grettenberger
- Author: Daniel H. Putnam
A new caterpillar was found this fall on alfalfa in the Palo Verde Valley of California and several other alfalfa growing areas of western Arizona.
Is this a New Pest? The initial finding of the ‘dot-lined angle' caterpillar (moth) was reported to UCCE in mid-October by a highly experienced pest control advisor (Richard Wellman), who had collected it in several fields in the Palo Verde Valley but realized it was an unfamiliar species. UCCE advisor Michael Rethwisch (Riverside County, CA) identified the species as the dot-lined angle (Psamatodes abydata), with this identification confirmed by Marc Epstein at the California Department of Food and...
- Author: Nicholas Clark
- Contributor: Michelle Leinfelder-Miles
- Contributor: Joy Hollingsworth
- Contributor: Anthony Fulford
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REGISTER NOW
NOTE: DUE TO COVID, PRE-REGISTRATION IS REQUIRED TO ATTEND
NO COST TO ATTEND
Pre-register by clicking or following the link immediately below:
https://surveys.ucanr.edu/survey.cfm?surveynumber=35502
Lunch will be served, but...
- 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: Vonny M. Barlow
- Author: Daniel Putnam
2015 Western Alfalfa & Forage Symposium will be held in Reno, Nevada on December 2-4 at the Silver Legacy Hotel, with a focus on water, irrigation, pest management and economics.
This is a great opportunity to learn more about alfalfa and other forage crops, and to visit with farmers, scientists, experts in various fields. Eleven Western States have joined forces this year to plan the Symposium. The event will be managed by the California Alfalfa & Forage Association (Sacramento, CA). Typically between 500 and 700 people attend.
Highlights:
- One-Day Alfalfa Irrigation Training Workshop (December 2)
- Economic Trends
- Pest Management...
- Author: Vonny M. Barlow
- Author: Eric T. Natwick
Of all of the insecticides evaluated against blue alfalfa aphid (BAA) by Eric Natwick of Imperial County, almost every insecticide applied to alfalfa this spring gave initial knockdown of BAA. Blue alfalfa aphid populations resurged in 7-10 days. Treatments giving 70–75% control (reported by PCA’s) were combinations of a pyrethroid with an organophosphate.
Possible factors for our BAA issue:
- High initial aphid populations
- Smaller than expected populations of predators and parasites; particularly the seven-spotted lady beetle
May be weather related or pesticide...
