Agronomy Research & Information Center
Agronomy Research & Information Center
Agronomy Research & Information Center
University of California
Agronomy Research & Information Center

Agronomy Blog

  • Fusarium Wilt in Garbanzos

    Figure 1. Garbanzo leaf yellowing and necrosis indicative of Fusarium wilt.

    A little over a month ago, I visited some contiguous garbanzo bean fields in southern San Joaquin County, at the request of the grower. The grower observed that plants were yellowing and dying (Fig. 1) and wondered what might be causing the problem. The grower did not figure that he would be able...

  • 2018 Field Corn Variety Trial Results

    UCCE Delta field corn variety trial.

    Table 1 shows the results of the 2018 UCCE Delta field corn variety trial, located on Tyler Island. Three replicate blocks of fourteen varieties were planted on May 9th by air planter. The fourteen varieties included 12 varieties submitted by seed companies and two submitted by the grower. All...

  • New UC IPM Guidelines for Dry Beans


    The Insect and Mite sections of the UC IPM Pest Management Guidelines for Dry Beans have been recently revised and updated and are now available online at: UC IPM Dry Beans Pest Management Guidelines. Authors include UCCE Farm Advisor Rachael Long and UC IPM...

  • Dry Bean Field Meeting, UC Davis, Thursday, August 23, 2018, 10 am- 12:30 pm

    Dry Bean Field Day, UC Davis

    UC Davis Agronomy Farm  Directions: In the field across from the UC Davis Bee Biology Lab (same place as previous years). From Hwy 113 in Davis, exit on Hutchison Dr. Go west, turn north at the first roundabout, then west at the second roundabout. Continue west on Hutchison Dr for about...

  • Southern Blight in Lima Beans

    Southern blight infected lima bean root (left); small tan sclerotia that are diagnostic of the southern blight fungal pathogen (yellow arrow).

    A baby lima bean field in the Sacramento Valley was recently found to be infected with southern blight (Sclerotium rolfsii), a fungal pathogen that's found in many crops. The field was double-cropped with barley and planted late June. Symptoms and signs: Initial symptoms of southern blight...

  • Lima Bean Root and Crown Rot

    Figure 1. Lima bean root and crown rot.

    I visited a lima bean field in the Delta at the beginning of June. The beans were showing what appeared to be dampening off symptoms (Figure 1), and dying plants were leaving large gaps down the rows. The problem was pretty widespread throughout the field. Two rows of beans were planted...

  • Charcoal Rot on Garbanzos in the Sacramento Valley

    Garbanzo field with charcoal rot

    A field in Sutter County was confirmed to have charcoal rot, also known as dry root rot or ashy stem blight, which is caused by the fungus Macrophomina phaseolina.  The disease generally occurs under dry soil conditions paired with high temperatures and can be especially problematic...

  • Updated IPM Guidelines for Dry Beans for Diseases and Abiotic Disorders

    A dry bean plant with yellow-mottled leaves from alfalfa mosaic virus, vectored by aphids. Avoid planting beans adjacent to alfalfa fields.

    The Diseases and Abiotic Disorders section of the UC IPM Pest Management Guidelines for Dry Beans have been recently revised and updated and are now available online at UC IPM Dry Beans Pest Management Guidelines. Authors include Farm Advisors Carol Frate (emeritus) and Rachael Long and UC Davis...

  • New UC ANR Cost and Return Studies for Garbanzo Beans (Chickpeas)

    Harvesting garbanzo beans, Yolo County, 2017.

    The UC Agriculture and Natural Resources Agricultural Issues Center (UC ANR) has released two new studies on the costs and returns of producing garbanzo beans (chickpeas), in the Sacramento and San Joaquin Valleys. Although acreage is relatively small (about 10,000 acres), garbanzos are an...

  • Frost Injury in Wheat

    Fig. 1. Yellowing and tip burning of wheat from frost injury. (Photo courtesy of PCA.)

    I have received a couple inquiries from Pest Control Advisors about wheat that is showing leaf tip yellowing and burning (Fig. 1). Their suspicion is frost injury, and with the weather we have experienced over the last several weeks, their suspicion is likely true.  There isn't a hard-fast...

Webmaster Email: