University of California Grain Legume Workgroup
University of California Grain Legume Workgroup
University of California Grain Legume Workgroup
University of California
University of California Grain Legume Workgroup

Welcome to UC Grain Legume Workgroup

Our purpose is to provide an on-line repository of agronomic information about California grain legumes, specifically dry beans. We deliver up-to-date and research-based guidelines and information on dry bean crop management and production to California's growers, researchers, and industry professionals.

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...

Posted on Monday, June 11, 2018 at 10:24 AM

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...

Posted on Wednesday, March 21, 2018 at 9:12 AM
Focus Area Tags: Agriculture

Planting Beans at UCD


Rachael Long, Jasmin Bonilla, Antonia Palkovic, and Jorge Berny planting beans at UCD.  

Posted on Wednesday, June 14, 2017 at 12:13 PM
Tags: homepage

White Mold in Garbanzo Beans- Often Attacks Stems Near the Soil Line

White mold in garbanzos often infects the plant stems near the soil line.

Our cool, wet conditions are favoring white mold (sclerotinia) in garbanzo beans this year. This disease is characterized by a white fungal growth that attacks the above ground plant parts, often near the soil line for garbanzos. The affected tissue...

Posted on Tuesday, April 11, 2017 at 8:41 AM

White Mold in Lima Beans

Figure 1. Sclerotia of white mold disease.

I was recently contacted by a Pest Control Advisor (PCA) regarding a lima bean field in the Tracy area. The plants were showing some unusual symptoms, and while the field was nearing harvest, the grower was hoping to get another couple weeks out of it...

Posted on Monday, October 3, 2016 at 2:46 PM

Bean Problem Diagnostics

Figure 1. Fusarium root rot of bean.

I recently visited a bean field in the southern part of the county with a PCA. From a distance, the beans in certain areas of the field appeared to be drying up and dying. A closer look showed that the leaf margins were drying up first before the whole...

Posted on Thursday, August 4, 2016 at 2:55 PM

Soil Temperatures for Planting Blackeye & Large Lima Beans

Figure 1. Bean seeds rotting fromPythium rot infestation.

A grower recently called to ask about the minimum soil temperature for planting blackeye and large lima beans. The University of California, Division of Agriculture and Natural Resources has produced production manuals for both blackeyes and limas. A...

Posted on Tuesday, April 19, 2016 at 2:42 PM
  • Author: Michelle M Leinfelder

No-till Garbanzos : Early-season crop field viewing event

video image

9:00 – 9:30 AMFive Points Field StationLassen and Oakland Avenues17353 W. Oakland AvenueFive Points, CA 93624 If you missed the field day,you can see a video summary here. Further information is available from Jeff Mitchell at (559) 303-9689...

Posted on Monday, April 18, 2016 at 2:49 PM
Tags: homepage

Scouting in Garbanzo Beans

Figure 1. Ascochyta blight on garbanzo bean leaves.

A pest control advisor recently contacted us to ask what pests he should be scouting for in garbanzo beans. His clients had not grown garbanzos in the past but have some acreage this year. Given recent wet weather and relatively mild temperatures,...

Posted on Tuesday, March 29, 2016 at 2:36 PM
  • Author: Michelle M Leinfelder

CE Specialist in Grain Legumes and Cropping Systems

California agriculture is characterized by being extremely diverse and dynamic. This necessitates expertise and resources to be focused on the evolution of existing cropping systems and evaluation of new crops and legumes (both grain and cover crops)...

Posted on Sunday, February 28, 2016 at 2:51 PM
Tags: homepage

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