Episoder
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Incorporating large amounts of woody biomass into soil, such as in whole orchard recycling (WOR), can promote carbon sequestration, nutrient recycling, and ecosystem health in agricultural fields. Yet uncertainty regarding the effects of WOR on soil carbon and nitrogen dynamics influences management decisions. Recently, Mae Culumber, Ph.D. with UC Cooperative Extension, Suduan Gao, Ph.D. with the USDA Agricultural Research Service, and others performed research to evaluate the effects of woodchip size and interaction with nitrogen fertilization on carbon dioxide and nitrous oxide emissions as well as soil organic carbon change. On this episode of Growing the Valley, they sit down with guest host Cameron Zuber to discuss some of their findings and how this may provide some considerations when implementing WOR.
The original article for this research from the Soil Science Society of America Journal can be found here https://acsess.onlinelibrary.wiley.com/doi/10.1002/saj2.20650 though payment may be needed to access.
Thank you to the Almond Board of California, the California Pistachio Research Board, the California Prune Board, and the California Walnut Board for their support of this podcast. Music is by Muriel Gordon.
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Soil health is broad term that encompasses a important topic: functional soil that can support human activities, animals, and plants. Measuring soil health can be difficult even for soil scientists, but in todayâs episode, Sarah Light shares some tools that growers, PCAs, and CCAs can use to judge soil health in their or their clientsâ orchards.
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 speakerâs 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.
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In 2023 UCANR advisors and specialists got an unusual number of farm calls on branch cankers in almonds, many of which turned out to be aerial phytophthora. Florent Trouillas with UC Davis goes over the pathogen, its lifecycle, and the conditions in 2023 that led to this outbreak.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Luke Milliron discusses the growing list of problems with the Monterey almond variety in the northern Sacramento Valley.
Leafing failure (what is it)
Leafing failure (what might be causing it)
Flowering failure
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
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This week, we share an episode that was TWO YEARS IN THE MAKING (if you count continually rescheduling episode recording sessions due to various conflicts and then forgetting about it for a year as making an episode). Phoebe interviews Amisha Poret-Peterson with the USDA-ARS on the basics of soil microbiology. We discuss the complexity and role of the soil microbiome, bulk soil vs the rhizosphere, and more! Listen to hear some very amazing things.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Lu Zhang provides an update on work published last year on the effect of dust on pistachio pollen, flowers, nut set, and blanking (itâs not good!). Please note that there are other physiological causes of blanking, such as incomplete pollination or aborted kernel development, and that we have not determined how much dust could contribute to blanking in the field. Also, the episode was recorded before the heavy rains in March in the southern San Joaquin Valley, so high dust conditions may not occur this year.
The American Society for Horticultural Science dropped its paywall, so you can read the article yourself at https://journals.ashs.org/hortsci/view/journals/hortsci/54/11/article-p1967.xml.
Thank you to the Almond Board of California, the California Pistachio Research Board, the California Prune Board, and the California Walnut Board for their support. Music is by Muriel Gordon.
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Cover crops! Theyâre not just for almonds (despite the bulk of California orchard cover crop research being in that crop). Daniele Zaccaria has been conducting research on cover crops in California pistachio orchards and shares what he has found, including some interesting possibilities as to why they found higher yields in orchards with cover crops.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Luke Milliron and Ken Shackel (UC Davis) sit down to talk about the decade plus of research investigating when to start irrigation in the spring for walnut orchards.
If you want to learn more about incorporating the pressure chamber to improve orchard health and cut costs - contact your local farm advisor or Luke at (530) 828-9666
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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In a world where it feels like we have a new invasive pest every month, sometimes itâs hard for an arthropod to stand out. Last year, the nut industries were put on notice by Carpophilus truncatus, a tiny beetle that has commandeered big attention. Lucky for us (and unluckily for the Australians), we arenât alone in trying to figure out how to keep this beetle under control. Houston Wilson shares what we know about its spread in the state, and what we can learn from Down Under.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Phoebe talks with Richard Heerema, the pecan specialist for New Mexico State University, about pecan botany and physiology, and why it may not be as good of a choice for areas prone to flooding as you think it might be. This is an episode for those who are thinking of planting pecans but have not done so.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Florent Trouillas, a professor of Cooperative Extension in plant pathology at UC Davis, describes how pistachios become infected with phytophthora and how to manage it. He also describes his research on this newly registered product.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Sarah Castro (UC Davis) discusses how new prune varieties can improve a growerâs bottom line!
scastro @ ucdavis.edu
Insta: @cali.prunebreeder
Initial episode on the prune breeding program with Sarah
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Phoebe and Sam discuss the water outlook for 2024. Some things have changed since last year, but some things have stayed the same. Listen to the entire episode to hear a public service announcement about tequila and agave production in the state!
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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While we posted this episode all the way back in 2018, we thought we would dust it off since the information is still timely.
Phoebe interviews Craig Kallsen, the now emeritus subtropical and pistachio tree crop advisor for Kern County, to talk about what we know and donât know about dormancy in pistachios. Craig also talks about a paper he published back in 2017, looking at the correlation between winter and spring temperatures and current seasonâs yield. This is an ongoing area for research and there are still more questions than we have answers.
This episode is a direct followup to âChill with Dr. Katherine Jarvis-Sheanâ, and while you donât need to listen to Katherineâs episode before you listen to this one, if you arenât familiar with dormancy and the different chill models, we suggest you listen to that one before this one.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Brittney Goodrich provides an update on what almond growers can expect in the 2024 pollination season. You can find the economic calculator here.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Navel Orangeworm (NOW) wreaked devastating impacts on the California almond industry in 2023. I sat down with Dr. Franz Niederholzer (UCCE Colusa) after harvest to discuss what had happened and what needs to be done to win the war against NOW in 2024.
Come to an upcoming extension meeting!
Sacramento Valley
San Joaquin Valley (scroll to the bottom)
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Dr. Andreas Westphal provides an update on tightening regulations and the latest research progress for nematode management in walnuts and other orchard crops.
Dr. Westphalâs upcoming nematode management field days will be on Tuesday November 28 (walnut), and Wednesday November 29 (almond) at the Kearney Ag Center (9240 S. Riverbend Ave, Parlier, CA). Who is it for? Field research representatives, farm advisors, PCAs, growers, consultants (CEU other(O): 4.0 for each day). What will you learn about? Rootstock development, pre-plant soil treatments, and post-plant treatments. REGISTRATION for this event: https://surveys.ucanr.edu/survey.cfm?surveynumber=41461 Early registration is encouraged. Contact information: ph: 559 646 6555, email: [email protected]
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Mel Machado (Blue Diamond Almond Growers) discusses important considerations for timing almond harvest, including grower objectives, varieties, and nut quality.
Resource links related to almond harvest:
When do you shake almonds?
Maintaining Quality with Pick Up & Stockpiling Best Practices
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 speakerâs 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
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Pistachios are very salt tolerant, at least compared to most of the other orchard crops that are grown in California. However, this does not make them immune to the effects of salinity. Daniele Zaccaria recently wrapped up a four year study examining the water use of trees under varying levels of soil salinity and found that water use decreases as soil salinity increases. This has major implications for tree health and water use post SGMA. Listen to find out more.
The views, thoughts, and opinions expressed are the speakerâs own and do notrepresent 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.
Follow us on Twitter! @SacOrchards and @SJVtandv
Thank you to the Almond, Pistachio, Prune, and Walnut Boards of California for their kind donations. Thank you to Muriel Gordon for the music.
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Drew Wolter (now former UCCE farm advisor intern) and Luke Milliron discus why the postharvest weed survey helps form the backbone of an integrated weed management program.
Mention of a pesticide does not constitute a pesticide recommendation. Always follow the pesticide label.
Thanks to the Pistachio Board of California and Almond Board of California for their generous financial support. Music by Muriel Gordon.
This is a UC ANR educational podcast. Any opinions or positions taken are those of the hosts and not the University of California. Use of this platform for and any advertisements connected with this podcast do not imply endorsement.
- Se mer
