UC Weed Science

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Figure 1. Italian ryegrass characteristics: purple coloration at the base (a), seed heads (b), collar (c), and spikelets (d). Photo by Clebson Gonçalves.
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Italian ryegrass update: latest research and management strategy

August 21st, 2023
By Clebson G Goncalves
In California, Italian ryegrass [Lolium perenne L. spp. multiflorum (Lam.) Husnot] has been around for a long time and is a major weed in orchards, vineyards, field crops, fallow fields, and so on. It grows vigorously in winter and early spring.
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Giuliano Galdi, UCCE Agronomy and Weed Management Advisor
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New Weed Management Advisor, Giuliano Galdi

August 17th, 2023
By Giuliano Carneiro Galdi
My name is Giuliano Galdi, and I am the new UC Cooperative Extension (UCCE) Agronomy and Weed Management Advisor located in Merced County, and also with responsibilities in Stanislaus and San Joaquin counties. In San Joaquin county, my primary responsibility will be in weed management.
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Cover Crops and Winter Weed Management: Considerations for Annual Rotations

August 14th, 2023
By Sarah E Light
Cover crops are typically planted in ground that is otherwise fallow. In an annual crop rotation in the Sacramento Valley, cover crops are commonly planted in the fall, grown over the winter, and terminated in late winter/early spring. Thus, cover crops can take up space outcompeting winter weeds.
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grape-olive-QRcode
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EVENT :: Grapes and Olive Field Day

August 8th, 2023
UC Cooperative Extension Lake & Mendocino Counties invite you to attend the Thursday, August 24, 2023 7:45 AM-1:00 PM Kelseyville, CA (see address for locations below) Please join us for the Lake-Mendocino Counties Grapes and Olive Field Day.
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