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In-a-Nutshell - Nut Culture
Dried Plum News - Prune Culture
Olive Notes - Olive Culture

Newsletter Articles:

May 2025Archived

Field picture submitted by Elizabeth Fichtner

Publications

Pest Notes
- Olive Knot
- Black Scale
UC Pest Management Guidelines (UC Statewide IPM Project Web Site)
UC Cooperative Extension Cost and Return Studies
- Almonds
  Double Line Drip Irrigation. Southern San Joaquin Valley. 2016 PDF
- Almonds
  Flood Irrigated. San Joaquin Valley North. 2011. PDF
- Almonds
  Micro-sprinkler. San Joaquin Valley North. 2016. PDF
- Olive Oil
  Super High Density. San Joaquin Valley 2007. PDF
- Olives - San Joaquin Valley. 2005 PDF
- Pecans - Sacramento/San Joaquin Valley - 2005. PDF
- Pistachios
  Low Volume Irrigation - San Joaquin Valley South. 2015. PDF
- Walnuts
  Late Leafing - Lateral Bearing. San Joaquin Valley North. 2017. PDF
- Walnuts
  Micro-Sprinkler Irrigation - San Joaquin Valley North. 2007 PDF

Stinknet plant. (Credit: Ron Vanderhoff)

Stinknet, an Emerging Invasive Weed

August 8, 2018

By Cheryl A Wilen

I recently attended a Santa Ana River Orange County Weed Management Area (SAROCWMA) meeting and there was an opportunity for participants to update the group about new invasive plants as well as give an update on management of these and others.

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A flame skimmer dragonfly (Libellula saturata) perches on a bamboo stake in a Vacaville pollinator garden. (Photo by Kathy Keatley Garvey)

Bug Squad: Article

Portrait of My Old Flame

August 8, 2018

By Kathy Keatley Garvey

Just call it "my old flame." Well, it's not mine, but it is a flame of sorts, a flame skimmer dragonfly (Libellula saturata) and it's firecracker red. We see this species frequenting our pollinator garden in Vacaville, which includes a fish pond, flower beds, and bamboo stakes for their perches.

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UC Weed Science (weed control, management, ecology, and minutia): Article

All About Glyphosate: An Issue of the Journal 'Pest Management Science' Dedicated to the Active Ingredient

August 8, 2018

Glyphosate was commercialized in 1974. Since then, it has become one of the most widely used (and studied) herbicides. According to Duke (2018b), almost 20,000 scientific publications and patents have included glyphosate as a focus; only 2,4-D surpasses it with respect to citations.

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Small and Organic Farm Advisor: Article

Bacterial Wilt and Canker of Field-Grown Tomatoes, Clavibacter michiganensis subspecies michiganensis (Cmm)

August 8, 2018

By Margaret G Lloyd

Summer 2018 has seen a surge of this disease around Yolo County. Conditions have been more optimal. Although it is a vascular pathogen like those causing Fusarium and Verticillium wilt, this one differs in that it is bacterial and has rapid and easy secondary spread during the season.

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Hot Weather Gardening Tips

August 8, 2018

By Gerry Hernandez

It seems like California has been under a heat advisory all summer. Many gardeners wonder how their plants; trees or shrubs can survive. With a little extra planning, your plants can survive the hot summer weather. Don't fertilize plants or trees during hot weather.

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ANR News Blog: Article

The California fires situation is concerning, but not hopeless

August 8, 2018

By Jeannette Warnert

The news that Americans are getting about California's devasting fires is not being hyped up by the media, said UC Cooperative Extension area fire advisor Lenya Quinn-Davidson on the nationally broadcast NPR program On Point.

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Leafhopper Blog: Article

Consult PCAs for Follow-up Applications for Leafhoppers

August 8, 2018

By Lucia G Varela

Monitoring efforts during the week of May 14th showed the first emergence of VCLH nymphs for the season (see Table 1/Figure 1 for # VCLH nymphs per leaf).

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Postdoctoral scholar Laura Brutscher of the Elina Lastro Niño lab talks bees to a group of third graders from Amador County. (Photo by Kathy Keatley Garvey)

Entomology & Nematology News: Article

What These Third Graders Learned About Bees at UC Davis Pollination Education Program

August 8, 2018

By Kathy Keatley Garvey

Postdoctoral scholar Laura Brutscher of the Elina Lastro Nio lab, University of California, Davis, kneels by an educational beekeeping display: a beehive, a smoker, a hive tool and beekeeper protective gear.

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Ranching in the Sierra Foothills: Article

The Value of Stockmansip and a Good Dog (or 2)

August 8, 2018

By Daniel K Macon

Earlier this week, we started to see some signs that some of our feeder and replacement ewe lambs where infected by barber pole worms, a parasitic stomach worm fairly common in sheep that are grazing on irrigated pasture during the summer months.

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