- Author: Rachael Freeman Long
- Author: Thomas Getts
It's that time of year again to watch for those evil alfalfa weevils! Weevils are key pests of alfalfa, causing yield and quality losses mainly to the first alfalfa hay cutting. The alfalfa weevil complex includes the Western, Egyptian, and Eastern strains that are all likely the same species (Hypera postica). Each year, growers throughout the country deal with this devastating pest. Telltale signs of weevil damage are small holes in the leaves of the new growth during the winter and spring, depending on field location. Damage is most severe in the first cutting, with large uncontrolled infestations potentially causing damage to the alfalfa regrowth under windrows within the second cutting.
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.
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...
Dog gone it's hot!
This is expected in our Central Valley at this time of year, but when heat waves hit, it's important to be prepared with good irrigation management practices in alfalfa hay production.
Can alfalfa tolerate extreme heat? The short answer is ‘yes'. Alfalfa is originally from the Middle Eastern regions of Turkey, Iran, and Central Asia, so it is well adapted to hot, dry conditions. It's also routinely grown in the hot deserts of Arizona, Southern California and Mexico.
Managing Water. It is especially important that the crop has access to water during hot periods. In the absence of water, the crop will dry down and go...
- Author: Kathy Keatley Garvey
DAVIS--A memorial for UC Cooperative Extension entomologist Larry Godfrey, a 26-year member of the UC Davis Department of Entomology and Nematology faculty, is scheduled from 4 to 6 p.m., Wednesday, June 7 in the Putah Creek Lodge, located off Garrod Drive, UC Davis campus.
Coordinating the memorial are his long time friends and colleagues, Extension entomologist Frank Zalom, distinguished professor of entomology, and entomology project consultant Vonny Barlow, both of the UC Davis Department of Entomology and Nematology. Barlow, the third graduate student in the Godfrey lab (1997) and who holds a doctorate (2006) from Virginia Polytechnic Institute and...
- Author: Rachael Freeman Long
Why do my alfalfa leaves look spotty??
Common leaf spot (Pseudopeziza medicaginis) has been very common in some alfalfa fields this spring due to our wet weather! Symptoms include small circular, brown-to-black spots on the leaves. As the disease progresses, infected leaves turn yellow and drop. Although the disease does not kill plants, defoliation reduces plant vigor, hay quality, and yield, especially with leaf loss during drying and harvesting.
Common Leaf Spot (Pseudopeziza medicaginis) in alfalfa - symptoms are small (.12 inch) circular brown/black spots on leaves, leaves turn yellow and drop. Brown fruiting bodies (apothecia) can be seen within the spots with a hand...