Archive Nut, Prune and Olive Programs

Iris Yellow Spot Virus (IYSV) was a significant problem in bulb and seed fields in the Imperial Valley between approximately 2003 and 2012. Since then, growers and PCAs have reported limited occurrences, although symptoms can easily be misidentified as spray injury or other foliar diseases. In April 2026,…

Definition: The close planting of different plants that enhance each other's growth or protect each other from pests.Companion Planting in the Vegetable Garden; Edible CropsCropCompatible CompanionsIncompatibleAsparagusTomato, Parsley, Basil BeansMost vegetables and herbsOnion, garlic, gladiolusBeans,…

 Why Raised Beds?DrainagePortabilityPest ControlAccessibilityAvoid soil compactionOwnership of bed is defined Accessibility - Raised BedsOptimum bed height should be 24 inchesKeep the beds narrow24 inches from the edge of the path to center of bed should be the maximum reach distanceLength of the…

 One of the most common questions for Master Gardeners is ‘What’s wrong with my tomatoes?’Here’s a general troubleshooting guide for tomatoes:Weather Tomatoes can be finicky, too hot or too cold, and fruit setting is delayed. If an extended period of summer heat is forecast, use an old sheet or…

 Article by Peg Smith - May is the major planting time for the summer garden of warm-season vegetables. Daytime and nighttime average temperatures are optimal for transplanting and direct seeding. Our local weather can oscillate between cooler or warmer than usual, so some judgment is needed. For…

Last year we shared information about the North Coast Emergency Food System Partnership (NCEFSP) -- a six-county partnership spanning Del Norte, Humboldt, Mendocino, Sonoma, Napa and Marin counties – with a goal to strengthen local food systems, support farmers economic well-being, improve food security and…

 You’ve already planted luscious tomatoes, probably purchased from our recent UC Marin Master Gardeners’ Tomato Market Sale. What other veggies should you plant to contribute to bountiful summer and fall harvests? Good choices are beans, cucumbers, peppers, summer squash, winter squash, and/or pumpkins…