Archive Nut, Prune and Olive Programs

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Figure 1. Yield at 13 percent moisture of UCCE Delta sorghum seeding rate trial. There were no significant differences among treatments in 2016 (P = 0.1278) or 2017 (P = 0.2419).
SJC and Delta Field Crops: Article

Sorghum Seeding Rate Trial Final Report

December 18, 2017
By Michelle M Leinfelder-Miles
In recent years, the University of California Division of Agriculture and Natural Resources has augmented research efforts on growing grain and silage sorghum [Sorghum bicolor (L.) Moench] in California.
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avocado suckers
Topics in Subtropics: Article

Afer the Fire, Replant or Field Graft?

December 18, 2017
By Ben A Faber
This is from past experience, and is still relevant. Availability of replant trees is a major issue to consider at this point. The wildfires in San Diego and Ventura Counties during the fall of 2003 were certainly devastating to many avocado groves adjacent to burning native chaparral.
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Bug Squad: Article

I'm Just a Little Ol' Honey Bee Foraging on Lavender

December 14, 2017
By Kathy Keatley Garvey
I'm just a little ol' honey bee foraging on lavender. I left my warm colony in Vacaville, Calif. to see if there's any nectar out there. My sisters are hungry. I'm not sure if we have enough honey to tide us over until spring.
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UC Weed Science (weed control, management, ecology, and minutia): Article

What does family mean?

December 14, 2017
By Guy Kyser
We were sampling plots in the Delta in July 2016, and found a small clump of this plant pickerelweed (Pontederia cordata).
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fire 1
Topics in Subtropics: Article

Assessing Fire Damaged Avocado Trees

December 14, 2017
By Ben A Faber
The destruction after a fire can be pretty gruesome and sad. Many times, though the fire moves through the orchard so fast that, even though the canopy has turned brown, there is a good chance the trees can come back. It all depends on how much damage has been done to the trunk.
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fire sonia 1
Topics in Subtropics: Article

What Lessons Have We Learned From Previous Fires?

December 14, 2017
By Ben A Faber
Sonia Rios, Area Subtropical Horticulture Advisor, Riverside & San Diego Counties Henry Herrera, Forester, California Department of Forestry and Fire Protection (CAL FIRE) Gary Bender, Subtropical Horticulture Advisor, San Diego County This is a reposting of a blog from 2015 that is still pertinent...
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Bug Squad: Article

A 'Firecracker of a Surprise' in Davis: Who Knew?

December 13, 2017
By Kathy Keatley Garvey
When plant and insect enthusiast Ria de Grassi discovered caterpillars on her firecracker plant, Russelia equisetiformis, last July 10 in her yard in Davis, Calif., she asked noted butterfly authority Art Shapiro, UC Davis distinguished professor of evolution and ecology, to identify them.
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