- Author: Ben Faber
Using ozone to improve fresh fig
shelf life with Leili Afsah Hejri
Figs, like many other fresh fruit, suffer from postharvest loss due to fungal pathogens and shrivel. Leili Afsah Hejri, a scientist working in food safety, has been examining the use of ozone as a post-harvest treatment for sanitation as well as improving fruit quality. In this episode, she discusses the results of a recently published trial with Phoebe.
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general information purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.
LISTEN TO THE PODCAST
- Author: Ben Faber
- Author: Ben Faber
The IPM Hour is a monthly online seminar covering a variety of IPM-related topics and research. It's held the second Wednesday of each month at 12 noon Pacific Time and features two 20-minute presentations followed by 10 minutes of discussion each. You can tune in live or check out the recordings on the Western IPM Center YouTube channel.
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- Author: Ben Faber
Huanglongbing Update
As of November 5, a total of 2,619 trees and 368 ACP have tested positive via PCR for the bacterium that causes HLB. The most recent activity has been in Orange and San Bernardino counties. Infected trees have been or are being removed, additional HLB detection surveys and ACP treatments are applied on a recurring basis to remaining citrus in those areas.
For additional details, please see the updated HLB quarantine and treatment map and table at maps.cdfa.ca.gov/WeeklyACPMaps/HLBWeb/HLB_Treatments.pdf.
For information on regulatory and treatment requirements growers can expect should HLB be detected in or near your citrus grove or packing house, please refer to CDFA's Information for Citrus Growers/Grove Managers, Action Plan for ACP and HLB or this summary flyer.
Regulatory Update
Mustang Maxx has been approved for Spray and Harvest. For growers who harvest in one ACP Regional Quarantine Zone and pack in another, and use Spray and Harvest as their mitigation for moving bulk citrus, the list of approved ACP materials has been updated. The most recent list and protocols for quarantine compliance can always be found in the Information for Growers/Grove Managers document from CDFA. Please keep in mind this is separate and distinct from protocols and materials for Area Wide Management, discussed above.
Additional ACP/HLB Resources
- Check out the new and improved CDFA Citrus Division website: https://www.cdfa.ca.gov/Citrus/
- General ACP/HLB
oInformation on the state ACP/HLB program including maps, quarantine information, and a signup option for email alerts: citrusinsider.org/
oBiology of ACP and HLB, detection maps and recommendations for monitoring, eradication and management: ucanr.edu/sites/acp/
oUC IPM recommendations for ACP
oWeb-based map to find out how close you are to HLB: ucanr.edu/hlbgrowerapp
oVideo on Best Practices in the Field, available in English and Spanish
- Research
oUC Ag Experts Talk presentations on management of various citrus pests and diseases are available for viewing here and here on YouTube.
oSummaries of the latest research to combat HLB: ucanr.edu/sites/scienceforcitrushealth/
oScience-based analyses to guide policy decisions, logistics, and operations: www.datoc.us
- Regulatory/Quarantine
oSign up for program updates from the Citrus Pest and Disease Prevention Division at www.cdfa/signup-email-updates.
oRegulatory requirements for moving bulk citrus: Information for Citrus Growers
oSummary of regulatory requirements in the event of an HLB detection in commercial citrus: citrusinsider.org/Regulatory-Flyer
- Author: Gale Perez
Our friend Lynn Sosnoskie (at Cornell University) shared the following announcement with us:
A free (downloadable) resource
Manage Weeds on Your Farm – A Guide to Ecological Strategies
Manage-Weeds-on-Your-Farm.pdf (sare.org)
Manage Weeds On Your Farm - SARE
“I am most pleased to share the good news that our long-awaited SARE-sponsored book “Manage Weeds on Your Farm – A Guide to Ecological Strategies” by the late Chuck Mohler, John Teasdale, and me has now been published online and is freely available for download from the SARE website link below. This is a great resource that took Chuck and I (and many student assistants) numerous years to complete. The coming onboard of John Teasdale as a co-author during the last two years was enormously helpful especially given Chuck's failing eyesight and his untimely passing.”--Toni DiTommaso, Professor and Chair, School of Integrative Plant Science Soil and Crop Sciences Section, Cornell University
Contents
ABOUT THE AUTHORS
ACKNOWLEDGMENTS
ABOUT SARE
PART I CONCEPTS OF ECOLOGICAL WEED MANAGEMENT
CHAPTER 1 INTRODUCTION
- Purpose and Philosophy
- How to Use This Book
CHAPTER 2 HOW TO THINK ABOUT WEEDS
- What is a Weed?
- The Origins of Weeds
- Weed Populations are Dynamic
- Weed Density Affects Weed Death and Reproduction
- Vegetative Propagation of Perennial Weeds
- Seed Weight
- Seed Germination: Why Tillage Prompts Germination
- Season of Weed Emergence
- Seed Longevity
- Depth of Seedling Emergence from the Soil
- Growth and Competition for Light
- Photosynthetic Pathway
- Sensitivity to Frost
- Drought Tolerance
- Mycorrhizae
- Nutrient Use
- Allelopathy
- Response to Soil Physical Conditions
- Response to Shade
- The Timing of Reproduction
- Pollination
- The Magnitude of Reproduction
- Dispersal
- Natural Enemies
- Palatability
- Summary
- References
CHAPTER 3 CULTURAL WEED MANAGEMENT
- Many Little Hammers
- Crop Rotation and Weed Management
- Crop Competitiveness
- Cover Crops
- Organic Mulch
- Continuous No-Till Vegetable Production Using Organic Mulches
- Synthetic Mulch
- Weed Management During Transition to Organic Production
- Solarization
- Natural Product Herbicides
- Livestock for Weed Management
- Preventive Weed Management
- Preventing the Arrival of New Weed Species
- Summary
- References
CHAPTER 4 MECHANICAL AND OTHER PHYSICAL WEED MANAGEMENT METHODS
- Essential Concepts of Mechanical Weed Management
- Types of Tillage and Their Effects on Weeds
- Using Tillage Against Perennial Weeds
- Tillage Effects on Weed Seedling Density
- Ridge Tillage
- Tilled Fallow
- Stale Seedbed
- Principles of Mechanical Weeding
- Cultivators and Cultivating Tools
- Other Physical Weed Control Devices
- Cultivator Guidance Systems
- Matching the Implement to the Task
- Hoeing Weeds
- Cultivation and Tillage in the Dark
- Soil Tilth and Cultivation
- Energy Use in Physical and Chemical Weed Management
- Summary
- References
CHAPTER 5 PROFILES OF FARMS WITH INNOVATIVE WEED MANAGEMENT PRACTICES
- The Martens, Penn Yan, N.Y.
- Paul Mugge, Sutherland, Iowa
- Eric and Anne Nordell, Trout Run, Penn.
- Scott Park, Meridian, Calif.
- Carl Pepper, O'Donnell, Texas
- References
PART II MAJOR AGRICULTURAL WEEDS OF THE UNITED STATES AND CANADA
- How the Species Chapters Were Developed How to Find Ecological Information and Develop a Management Plan for Species not Covered in this Book
- References
WEED CHARACTERISTICS SUMMARY TABLES
GRASS WEEDS AND THEIR RELATIVES
- Annual bluegrass
- Barnyardgrass
- Bermudagrass
- Downy brome
- Fall panicum
- Foxtails
- Goosegrass
- Italian ryegrass
- Johnsongrass
- Large crabgrass
- Purple nutsedge
- Quackgrass
- Sandburs
- Shattercane
- Wild garlic
- Wild oat
- Wild-proso millet
- Witchgrass
- Yellow nutsedge
BROADLEAF WEEDS AND THEIR RELATIVES
- Annual sowthistles
- Bindweeds
- Canada thistle
- Catchweed bedstraw and false cleavers
- Chamomiles
- Common chickweed
- Common cocklebur
- Common groundsel
- Common lambsquarters
- Common milkweed
- Common purslane
- Common ragweed
- Common sunflower
- Dandelion
- Deadnettles
- Docks
- False cleavers (see “catchweed bedstraw and false cleavers”)
- Field pennycress
- Flixweed
- Galinsogas
- Giant ragweed
- Hemp sesbania
- Horsenettle
- Horseweed
- Jimsonweed
- Kochia
- Morningglories
- Nightshades
- Palmer amaranth
- Perennial sowthistle
- Pigweeds
- Plantains
- Prickly lettuce
- Prickly sida
- Russian-thistle
- Shepherd's-purse
- Sicklepod
- Smartweeds
- Velvetleaf
- Waterhemp
- Wild buckwheat
- Wild mustard
- Wild radish
- Yellow woodsorrel
GLOSSARY
INDEX
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