Butte County
University of California
Butte County

Prune Notes

Issues Articles Type Date Added
04/25/2019 (1,579KB)
  • Newsletters are going online!
  • 2019 IPM Breakfast Meetings
  • Prune Management Considerations: Spring -- Summer
  • The Advantages of Tighter Spacing and Greater Light Interception in California Prune Orchards
  • Thinning Prunes
  • Updated cost of producing prunes now available
PDF 4/25/19
01/29/2019 (1,688KB)
  • Newsletters are going online!
  • 2019 IPM Breakfast Meetings
  • N. Sacramento Valley Prune Day (Feb 22nd)
  • Orchard Considerations
  • Bloom Disease Treatments and Honey Bee Safety
  • Update on Heart Rot in Prunes
  • Is This a Year to Skip Thinning?
  • Weed Management Considerations When Replanting Trees
  • Fungicide Efficacy and Timing Tables for Prune
  • Trends in World Prune Markets
PDF 1/29/19
10/18/2018 (1,386KB)
  • Butte County Newsletters are going online!
  • 3rd Annual Post-Harvest IPM Workshop
  • Fall & Winter Prune Orchard Management Considerations
  • Cytospora Post-Harvest: Cut it out! Protect fresh cuts!
  • Pros and Cons of Mechanical Pruning
PDF 12/18/18
06/19/2018 (980KB)
  • Growing the Valley 
  • Pre-Harvest & Harvest Prune Orchard Considerations 
  • Managing canker diseases in prune orchards 
  • Prune Harvest Timing 
  • July Leaf Sampling
PDF 8/28/18
02/20/2018 (1,878KB)
  • South Sacramento Valley Prune Meeting
  • Prune Bloom Orchard Management Considerations 
  • Dry, Warm, Winter Raises Questions about Irrigation 
  • Thinning Prunes 
  • Evaluating New Rootstocks: What’s the Latest? 
  • New Hazard for Interplanted Orchards 
  • Fungicide Efficacy
PDF 3/26/18
10/02/2017 (861KB)
  • Advances in Prune Production
  • Fall Prune orchard management considerations following a heavy crop
  • Aphid Management Review
  • Upcoming IPM Breakfasts
  • New Farm Advisor Introduction
PDF 6/20/18
05/27/2017 (848KB)
  • Techniques to Time First Irrigation Dates for Prune 
  • Thinning Prunes 
  • Prune Orchard Nutrition: Thoughts for 2017 
  • Why are Some Prune Trees Yellow in the Spring? The Bicarbonate Blues. 
  • Prune Management Considerations: Late Spring through Summer
PDF 3/26/18
03/17/2017 (1,480KB)
  • Crop Load Adjustment (Thinning Prunes) 
  • Options for Bad Weather at Bloom 
  • Fungicide Efficacy Tables 
  • Bloom Orchard Management Considerations
PDF 3/26/18
10/17/2016 (961KB)
  • Food for Thought When Planting a New Prune Orchard 
  • Potted Tree Irrigation After Planting: Getting the First Year Right 
  • Fall Prune Orchard Management Considerations Following a Light Crop
  • Preliminary Observations for New Prune Rootstocks 
  • Prune Industry Summit 2017
PDF 3/26/18
05/25/2016 (867KB)
  • Prune Bloom, 2016 
  • Weekly Soil Moisture Loss Reports to Assist With Water Management 
  • Pocket Gopher Management: Don’t Wait Too Long! 
  • Prune Orchard Management Considerations – Fruit Development to Harvest
PDF 3/26/18
02/19/2016 (1,918KB)
  • 2015 Field Evaluation of Prune Rootstocks 
  • Fungicide Efficacy Tables 
  • Nitrogen Management for Prunes 
  • Prune Bloom Orchard Management Considerations
PDF 3/26/18
11/02/2015 (900KB)
  • Rain and pruning don’t mix 
  • Weed management in prunes 
  • Gear Up, Throttle Down for pest control and cost savings 
  • A good year for a fall spray in prunes? 
  • Fall orchard management considerations
PDF 3/26/18
07/21/2015 (713KB)
  • Predicting an Early ‘French’ Harvest 
  • Blue Prune 
  • Prune Cracking 
  • Pre-Harvest Practices to Consider
PDF 3/26/18
04/22/2015 (1,171KB)
  • Warm postbloom weather = early harvest? 
  • How hot was it at bloom, 2015? 
  • Drought strategies for California prune production 
  • Crop load assessment and adjustment 
  • N budgeting following the 4 Rs 
  • Prune Orchard Management Activities May through July
PDF 3/26/18
02/23/2015 (2,337KB)
  • South Sac Valley Prune Meeting 
  • Prune Orchard Activities February to May 
  • Heat at Bloom Update ? Honey Bee Safety During Prune Bloom 
  • Pesticide Safety Train the Trainer Workshops, March 12th in Davis 
  • Fungicide Treatment Timing and Efficacy Tables
PDF 3/26/18
10/01/2014 (1,987KB)
  • Fall Orchard Considerations 
  • Irrigation System Maintenance 
  • Cytospora Cankers can Destroy an Orchard 
  • Fall Weed Management Considerations in Prune Orchards 
  • Potassium Nutrition: Maintaining Optimum Levels by Replacing What You’ve Lost
  • Save the Date
PDF 3/26/18
06/18/2014 (549KB)
  • New IPM Advisor Introduction 
  • New Farm Advisor Introduction 
  •  Advisor Retirement – Thanks! 
  • Scouting for Spider Mites in Prunes 
  • Deficit Irrigation for French Prune 
  • Chill model comparison – Why two models judged last winter very differently
  • Nitrogen Management in Orchard Crops -- Red Bluff Meeting July 24th
PDF 3/26/18
04/16/2014 (716KB)
  • Prune aphids in Spring & Summer 
  • Irrigating French prune during a drought 
  • Efficient nitrogen management in prune production 
  • Low chill winter? 
  • How hot was it at bloom, 2014?
PDF 3/26/18
07/03/2013 (758KB)
  • Blue prune drop and leaf scorch
  • Earlier harvest in 2013?
  • 2013:  A tough year for cankers

                  

PDF 9/5/13
04/08/2013 (624KB)
  • Orchard Irrigation 2013
  • Prune Tissue Sampling for Leaf Analysis
  • How hot was it at bloom, 2013
  • Efficient Nitrogen Management in Prune Production

                    

PDF 9/5/13
01/31/2013 (1,159KB)
  • Heat at Bloom Update
  • Nitrogen Management for French Prune
  • Brown Rot Blossom/ Twig Blight & Preventing Fungicide Resistance
  • New 2012 Prune Cost Study for the Sacramento Valley
  • Red Bluff Prune Day Feb 8th --- Yuba City Prune meeting Feb. 27th
PDF 2/1/13
10/11/2012
  • Prune orchard nutrition
  • Fall spray for prune aphid management
  • Prune out Cytospora cankers to reduce disease
  • Two different spots on prune leaves
DOC 10/16/12
08/13/2012 (662KB)
  • Managing prunes through harvest
  • Sizing prunes at harvest
  • Distinguishing between branch dieback disorders
  • New Prune Production Manual Available
PDF 8/16/12
03/15/2012 (557KB)
  • Heat at bloom update
  • It's your money
  • Mobile Irrigation Lab Service
  • Fungicide Timing and Efficacy Tables
PDF 3/15/12
07/20/11 (3,382KB)
  • Managing fruit brown rot and prune rust.
  • Blue prune drop and leaf scorch.
  • Bloom time temperatures compared to fruit set in 2011.
  • Update on Spotted Winged Drosophila in prunes.
  • When will harvest start in 2011?
PDF 7/20/11
10/4/2010 (1,006KB)
  • Prune out Cytospora cankers to reduce disease
  • Fall spray for prune aphid management
  • Scale pests in prune orchards and keeping a balance of natural enemies
    to control them
  • Using a high oil rate before bloom: Why do it?
PDF 10/4/10
07/30/2010
  • What can you do now to produce the largest prunes possible?
  • Field sizing French prune
  • Managing fruit brown rot in prunes 
  • Spotted winged Drosophila: new damaging pest in prunes?
PDF 7/30/10
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