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Vegetable Production and IPM for Conventional and Organic Systems

May 1, 2025

Join UCCE Imperial County extension adviser's as they present theVegetable Production and IPM for Conventional and Organic SystemsThis workshop will feature presentations on various aspects of agriculture in Southwest desert region including vegetable disease updates and management, emergent…
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onions cured and in storage
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Onions

Onions, Allium cepa. There are two types of onions: strong-flavored that store well and mild and sweet that don’t last long in storage. There are yellow, white, and red varieties in both categories. Divided into long day, intermediate day, and short day varieties, determined by latitude. Intermediate and…
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Plant Pathology

Program OverviewThe Plant Pathology Program provides applied research and outreach to support agricultural production across Imperial, Riverside, and San Diego counties. This tri-county region encompasses a wide diversity of crops and growing conditions—from the desert-irrigated systems of Imperial Valley to…
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Yellow Onions (Photo: Evett Kilmartin)
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Onions

Onions can be divided into two categories: strong-flavored ones that store well and mild, sweet ones that don't last long in storage. There are yellow, white, and red varieties in both categories.
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Yellow Onions (Photo: Evett Kilmartin)
Page

Onion Handout

Biennial monocot with prominent bulb, hollow cylindrical leaves and an odor when bruised. Roots shallow, 12-18" Has been used for food since very early times; was eaten in Egypt before 3000 B.C. Also used as flavoring in nearly every current world culture. Botanically, there are three groups. Many claims are…
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