Archive Nut, Prune and Olive Programs

Thrips/TSWV status in Yolo & Colusa: Article

2026 4th Report-- May 21

May 21, 2026
By Patricia A Lazicki, Neil McRoberts
Tomato planting is wrapping up, and some early-planted fields are approaching canopy closure. Mid-to late-May has been on the warm side of normal, and the estimates for upcoming thrips generations have been moved slightly forward. Generation Predicted date Gen 3 peak adults 5/24 Gen 4 egg hatch 6/1 Gen…
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Argentine ant crawling on honey-coated spoon. (Photo by Kathy Keatley Garvey)

What He Discovered After Large-Scale Argentine Ant Removals

May 21, 2026
By Kathy Keatley Garvey
 The invasive Argentine ant (Linepithema humile), a significant pest in both agricultural and urban settings, is known for its supercolonies that render substantial harm to flora and fauna, including native arthropods, vertebrates and plants.Enter Professor David Holway of the UC San Diego Department of…
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Vince Trotter headshot for water and food growing webinar banner
Grown in Marin: Event

Food Safety: Water for Irrigation and Produce Washing

Event Date
Jun 4, 2026

In this webinar, Vince Trotter (Sustainable Ag Coordinator and Ag Ombuds for UCCE Marin) will discuss the two main kinds of water on a produce farm and explore systems for maintaining food safety in both. The presentation will be followed by an opportunity for Q&A, and live Spanish interpretation will be…
Grown in Marin
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Colorful flowers in an area designed to attract pollinators
Fresno Gardening Green: Article

Yo’Ville Community Garden champions healthy food and local resiliency

May 21, 2026
Next to a tidy neighborhood in Southwest Fresno, the non-profit organization Fresno Metro Ministry, alongside a team of dedicated volunteers, has nurtured a 7.5-acre garden and farm into a productive community hub.The Yo’Ville Community Garden and Farm boosts neighbors’ food security, guides novice gardeners…
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Lavender flowers and a blue cloudy sky
Fresno Gardening Green: Article

This week in the garden: May 22 - 28

May 21, 2026
“I try to rely less and less on controlling nature. Instead, I am learning to live with its chaos.” ~ Mas Masumoto TasksMonitor fruiting pear and apple trees for codling moth. To control powdery mildew on grapevines, apply sulfur every 14 days until fruit begins to…
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strawberry seedlings in the ground
Grown in Marin: Event

Setting the Table: A Mixer for Exploring Land Leases

Event Date
Jun 17, 2026

Join Sonoma Resource Conservation District (RCD) and Kitchen Table Advisors (KTA) for an afternoon of matchmaking!¡Traducción en español a continuación! We are setting the table for land owners, vineyard owners/managers, and local specialty crop producers to meet, chat, and explore land leasing…
Grown in Marin
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Pruning out old roses with bypass pruners.

Jump into Summer with these IPM Webinars!

May 21, 2026
By Yulie Velez
Looking to keep your brain stimulated this summer? Need information about garden pests? Join us every third Thursday of the month from 12:00 to 1:00pm PST to learn about a wide range of urban pest management topics. This series is free and open to the public, but advance registration is …
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dirt path between several trees
Cooperative Extension Ventura County: Event

Perennial Weed Management in Vineyards and Orchards

Event Date
Jun 3, 2026

Perennial Weed Management in Vineyards and OrchardsJune 3, 2026 (3:00 to 4:00 pm)Jorge Angeles, Weed Management Advisor, University of California Cooperative Extension, Tulare, Kings, and Fresno Counties, will provide an overview of commonly found perennial weeds in orchards and vineyards in the San Joaquin…
Cooperative Extension Ventura County
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