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

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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...

Posted on Tuesday, August 7, 2018 at 3:04 PM
Tags: agric (12), beanIPM (1), drybeans (2)
Focus Area Tags: Agriculture

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...

Posted on Wednesday, July 11, 2018 at 10:43 AM
Tags: agric (12), disease management (1), diseases (2), drybeans (2), lima beans (1)

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 25, 2018 at 11:56 AM
Tags: AgRIC (12), Beans (2), charcoal rot (1), Dry (1), garbanzo (4)

Alfalfa mosaic virus in garbanzo beans

Garbanzo field infected with alfalfa mosaic virus, vectored by aphids.

Several garbanzo fields in the Sacramento Valley were infected with alfalfa mosaic virus, a disease that's vectored by aphids. Plant symptoms of viral infections include yellowing wilting, stunting, and dieback. The degree of plant loss and yield...

Posted on Sunday, June 3, 2018 at 3:14 PM

Fusarium root rot in garbanzo beans

Fusarium root rot in a garbanzo field in the Sacramento Valley, 2018.

This spring, we found a garbanzo bean field in the Sacramento Valley with fusarium root rot, identified by our new UCCE Plant Pathologist, Cassandra Swett at UC Davis. Fusarium root rot, caused by the fungus, Fusarium solani f. sp. ciceris, attacks...

Posted on Sunday, June 3, 2018 at 3:08 PM

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