- Author: Nicholas E Clark
- Contributor: Michelle Leinfelder-Miles
- Contributor: Giuliano Carneiro Galdi
- Contributor: Jackie Atim
Mark your calendars for the upcoming Annual Field Crops, Alfalfa and Forage Field Day. Date and location details are as follows:
Wednesday, September 27th, 2023
UC Kearney Agricultural Research and Extension Center, Parlier
9240 S. Riverbend Ave., Parlier, CA 93648
There is NO FEE to attend this public meeting, and all are welcome.
Anybody interested in up-to-date research-based information about the production of field...
- Author: Daniel H. Putnam

For all of those interested in alfalfa and grain crops (small grains, sorghum), you may want to attend the 2023 UC Davis Field Day on 11 May. Varieties, pest management, irrigation, etc. See below.
PCA/CCA CE CREDITS PENDING
Guaranteed weather!!! (yes we guarantee there will be weather - hopefully beautiful)
Hop on the hay-wagons and visit research plots on the UC Davis Campus and discuss research with colleagues. Starts 7:30a.m.
This field day is sponsored by UC Davis Department of Plant Sciences, UC Cooperative Extension (ANR), and The California Crop Improvement...
- Author: Roger A Baldwin
- Author: Niamh Quinn
- Author: Daniel H. Putnam

PROPOSED LABEL CHANGES
The US EPA has proposed a series of dramatic changes to rodenticide labels which will significantly change how rodenticides are used in alfalfa, pasture, and many other crops (orchardes, vineyards).
Among other restrictions,
- All rodenticides for field applications will be restricted-use (new requirements for equipment, training)
- Above-ground applications eliminated
- 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: Rachael Freeman Long
- Author: Morgan Doran
- Author: Robert Poppenga
- Author: Dan Putnam

Sudangrass (Sorghum bicolor L.) is a type of sorghum which is widely grown for hay, greenchop or grazing systems. Typically over 50,000 acres of sudangrass are grown for hay in the Imperial Valley of California, much of it exported to Japan.
However, sudangrass (and sudan-sorghum hybrids) can be grazed or fed as greenchop to livestock particularly beef animals or used as a vigorous cover crop. What are the risks of feeding sudangrass to livestock?
Is Grazing Safe? A couple of questions have come up about grazing sudangrass including: 1) grazing sudangrass stubble after harvest, and 2) grazing sudangrass in a cover crop. Is this a safe practice? Maybe, but pay attention! Care is...