Grape Notes Blog
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Cover crop residues and fire risk
Vineyards and orchards have long used winter cover crops to help reduce erosion, improve soil structure and prevent nutrient leaching. Growers are being encouraged to increase their use of cover crops to help capture atmospheric carbon dioxide and fix it...
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Using satellite NDVI for vineyard diagnostics
Satellites have been measuring NDVI over the entire planet for many years, but only recently has the data become accessible to the non-expert with the development of very user-friendly websites. This accessibility to the data has created...
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Production and economic trends for San Luis Obispo and Santa Barbara County vineyards
The following charts are updates of similar ones first presented here in 2015; they now include values through the 2019 harvest. They are helpful to appreciate the divergent paths that the wine grape industries in each county have been experiencing in...
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UCCE San Luis Obispo weather station network
This new project is bringing some unique and very useful weather data to San Luis Obispo County. Twenty weather stations are planned for the County; at this writing 12 are installed and operating. An additional twenty stations are also planned for Santa...
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Irrigation volume and frequency: soil, salinity and nutrient considerations
Irrigation frequency and volume One fundamental decision that a grower needs to make is how frequently to irrigate a vineyard; either applying small amounts of water frequently, or larger amounts of water less frequently. This choice determines how...
Grape Notes Blog Articles
The Grape Notes Blog has replaced the previous Grape Notes Newsletter. You can view the Blog at the following website, and sign up to receive email notification of new articles:
http://ucanr.edu/blogs/GrapeNotesBlog/index.cfm
Articles that have been posted, in reverse chronological order:
2019:
Irrigation volume and frequency: soil, salinity and nutrient considerations
2018:
Realignment of Farm Advisor assignments serving San Luis Obispo and Santa Barbara Counties
Special issue of the California Agriculture Journal: The Sustainable Groundwater Management Act
2017:
Resistance to the QoI (Strobilurin) Fungicides in Grape Powdery Mildew on the Central Coast
Downy Mildew appearing in Central Coast vineyards
2016 update - Production and economic trends for SLO County vineyards
The Orange Slime is appearing again on pruning wounds
2016:
The Driedfruit Beetle can exacerbate bunch rot problems
Planthoppers appearing in area vineyards
Vine mealybug identification posters
Vineyard floor management and frost risk
Red Blotch and the Threecornered Alfalfa Hopper
2015:
Weather and drought effects on the poor fruit set in 2015
Production and economic trends for SLO County vineyards
Managing irrigation water quality
The rise (and demise) of the UC Experiment Station at Paso Robles
Renovating vineyards affected by trunk diseases
Black Foot Disease in coastal vineyards
Pinot Leaf Curl appearing in Central Coast vineyards
Arrival of the 'Red Bug' to Central Coast vineyards