Pacific Nut Producer Magazine

Tag: CDFA

  • Almond Board Joins Group to Speed CA’s Shift to Safer Pest Management

    Yesterday, the California Department of Pesticide Regulation and California Department of Food and Agriculture launched a broad new work group to accelerate the systemwide adoption of safer, sustainable pest control practices.

    The 25-member Sustainable Pest Management Work Group includes farmers, community members, university researchers and representatives from commodity groups and the pesticide industry. They are charged with identifying pathways to minimize the use of toxic pesticides and expand the use of integrated pest management practices; better protect public and environmental health; and engage, educate and promote collaboration to achieve these goals.

     “Transitioning away from toxic pesticides requires us to speed up the development of effective alternatives,” said CalEPA Secretary Jared Blumenfeld. “By giving our farmers a suite of integrated pest management tools, we can better protect farmworkers and some of California’s most vulnerable communities. This dynamic task force will give us the roadmap to achieve this bold vision.”

    “California agriculture is recognized not only for its quality and quantity, but also for the sustainable, innovative, forward-thinking way it is grown,” said CDFA Secretary Karen Ross. “Our farmers have been leaders in adopting integrated pest management and partnering with universities and technical assistance providers to meet our high standards for food, environmental and worker safety. This work group represents a broad array of perspectives to inform the next decade of research and development investment and new partnerships to continue the production of nutritious, delicious food and high quality agricultural products with the least impact to our surrounding communities.” 

    Funded in last year’s budget, the group’s work will build upon the recommendations of the Alternatives to Chlorpyrifos Work Group whose 2020 report identified alternatives to the hazardous insecticide and outlined actions to further support agriculture and the health of local communities, farmworkers and the environment. A new status update details additional actions DPR has taken based on the 2020 report, and how DPR and CDFA are working together to provide additional funding to the University of California and California State University to expand integrated pest management research and education. California prohibited virtually all uses of chlorpyrifos as of Dec. 31, 2020.

    The Sustainable Pest Management Work Group is part of the State’s larger commitment to accelerating the transition away from hazardous pesticides. To support the move, Governor Newsom is proposing to fund additional support for the transition by replacing the current flat-fee mill assessment on pesticide sales with a new risk-based tiered mill assessment, where higher toxicity pesticides are assessed a higher fee.

    The members of the Sustainable Pest Management Work Group include:

     

    1. Jenny Broome, Driscoll’s
    2. Don Cameron, Terranova Ranch
    3. Casey Creamer, California Citrus Mutual
    4. Jim Farrar, UC Integrated Pest Management (IPM)
    5. Chris Geiger, City of San Francisco
    6. Kim Harley, UC Berkeley
    7. Lisa Herbert, Sutter County Agricultural Commissioner
    8. Nina Ichikawa, Berkeley Food Institute
    9. Dan Kaiser, Environmental Defense Fund
    10. Susan Kegley, Pesticide Research Institute
    11. Margaret Lloyd, UC Extension – small farm advisor
    12. Suguet Lopez, Líderes Campesinas
    13. Gabriele Ludwig, Almond Board of California
    14. Pam Marrone, Chestnut Bio Advisors, Formerly Marrone Bio Innovations
    15. Nayamin Martinez, Central California Environmental Justice Network
    16. John McKeon, Taylor Farms
    17. Cliff Ohmart, Pest Control Advisor (PCA)
    18. Scott Park, Park Farms
    19. Margaret Reeves, Pesticide Action Network
    20. Taylor Roschen, California Farm Bureau
    21. Sarah Ryan, Environmental Director Big Valley Band of Pomo Indians
    22. Daniel Sonke, Campbell Soup Company
    23. Paul Walgenbach, Bayer
    24. Ron Whitehurst, Pest Control Advisor (PCA)
    25. Houston Wilson, UC Organic Agriculture Institute

  • Walnut Replanting Considerations in a Lean Price Year

    When prices are lean walnut farming is tough business. Farm advisors are not economists or financial advisors. However, farm advisors can be useful in providing best practices for economically sustainable production. Two key economic decisions growers face are when to replant individual trees and when to remove and replant entire orchards.

    Learn from Dying Trees to Improve Management of the Whole Orchard:

    Former Advisor Carolyn DeBuse, and Emeritus Advisor Bill Krueger wrote about the need to pause before replanting, by asking why the tree died in the first place. Saturated soils and soil borne pathogens are common culprits for tree loss. It is important to carefully evaluate recently declining trees, particularly evaluating their root systems for a possible cause. Your pest control advisor or local farm advisor can help with this diagnosis. Can changes be made to reduce the chance of additional trees declining and increase the chance of success for replanted trees? For Phytophthora and nematodes, these changes are often genetic (i.e. replant rootstock selection) but may also include a chemical approach. However, the needed action is just as often cultural, whether it is adjusting irrigation set time to prevent ponding or installing stream-splitters to keep water off trunks.

    Water logging is a common cause of walnut tree decline: sacvalleyorchards.com/blog/walnuts- blog/yellowing-collapsing-walnut-trees-pt-1-water-logging. The Howard variety appears particularly sensitive to saturated soils: sacvalleyorchards.com/blog/walnuts-blog/yellowing-collapsing-walnut-trees- pt-2-yellowing-howard-problem. In addition to tracking saturated conditions with soil moisture monitoring, a key practice to not over-watering is irrigating only when demanded by the trees, as indicated through regular pressure chamber use. Learn more at: sacvalleyorchards.com/manuals/stem-water- potential.

    Tree Replanting Decisions:

    When a tree dies and is removed, there is always a question of whether to replant in that spot. The decision of whether to replant an individual tree is a gamble that the replant will become established and produce enough to offset its associated costs by the end of the orchard’s life. A decision that is an automatic “yes” early in the orchard’s life becomes more complicated as the orchard ages.

    The shading from surrounding trees, and the ensuing low probability of successful vigorous growth weighs against the desire to replant and establish lost production. DeBuse and Krueger noted that if the orchard floor has over 75% shade at midday, the chance of a successful replant is slim. However, UC Davis Walnut Specialist Bruce Lampinen believes that a successful replant is dubious in orchards with over 60% shading. If the decision to replant has been automatic for you, pause to consider the cost of an unsuccessful replant and first evaluate how much light is available to the new tree.

    After weighing the success of the replant and evaluating why the original tree died, if you do replant, follow the best practices to help nurture this investment. Root removal, possible spot fumigation, nursery product selection, and correct planting are the key steps. Of these, nursery product selection is a particularly critical step, if possible, tailor the choice of rootstock to the main source of tree loss (see rootstock table below). As part of nursery selection, choosing a bareroot over a potted tree is typically ideal because you are starting with a tree that is larger and easier to manage. Once the replant is in place, the tree stands little success without paying extra attention to the need to modify irrigation and fertilization. You can learn more in the excellent guide by DeBuse and Krueger at: sacvalleyorchards.com/walnuts/orchard-development/replanting-individual-trees.

    Orchard Replanting Decisions:

    In addition to a lack of available light, general orchard decline is a second major reason to rethink replanting individual trees. General orchard decline in old age, frequently the result of weak trees facing an onslaught of multiple pests and diseases (figure 1), means replants make little sense because of the short window remaining in the orchard’s life. Instead, the orchard should continue to be farmed without replants until it is no longer economically feasible to do so.

    Figure 1. An orchard facing general decline, with a high rate of tree loss. Extensive crown gall, trunk cankers, and high nematode counts all present in this orchard.

    Amidst lean prices, if this is the year that you slate an orchard for removal, there are several steps you should consider before removal. A critical initial step, just as with replanting individual missing trees, is to ask why the orchard is in decline, and if those problems may follow you into the next planting. In addition to assessing the risk of the replant problem, and the persistence of crown gall, a nematode sample taken while the current trees are still in the ground is a great start. You can learn more about nematode sampling at: growingthevalleypodcast.com/podcastfeed/2019/10/22/nem-sampling and result interpretation and the next steps for replanting amidst high lesion nematode counts at: sacvalleyorchards.com/walnuts/orchard- development/replanting-into-nematode-infested-soils.

    Building upon this initial diagnosis step, consider the following steps:

    1. Assess potential carry-over problems before harvest.

    2. Kill the roots of the old orchard. The established best practice for this is cutting down trees above ground during October and within 5 minutes painting the stump with Garlon3A, or a mixture of 1:3 mixture of Garlon3A and MorAct.

    3. Wait a full growing season before replanting walnuts. This is the step where there are a range of management choices, such as the decision to fumigate, the use of a spring-summer crop to dry down deep soil moisture, or even exploration of a new technique like anaerobic soil disinfestation.

      This is also the step, where you could consider whole orchard recycling (WOR), whereby the previous trees are chipped and incorporated back into the soil. In almonds, this has been successful both for the performance of the subsequent planting and for soil health. Problems and success with WOR in walnut have yet to be demonstrated, with only a single pilot demonstration of young second generation WOR trees to- date. Until we have data on the persistence of crown gall and lesion nematode in roots of a recycled orchard, this practice is not advised for orchards with heavy cases of these afflictions. You can learn more about WOR at orchardrecycling.ucdavis.edu. WOR is an expensive practice, however the practice is now recognized for potential financial support through the CDFA’s Healthy Soils Program: cdfa.ca.gov/oefi/healthysoils.

      1. Fumigate, if necessary. The choice of whether to fumigate is centered around the concerns of root lesion nematodes, the replant problem, and to a lesser extent crown gall when replanting walnut orchards. Specifically, if lesion nematode is present in the old orchard, nematicide (e.g. Telone) fumigation, in addition to all the other steps may be necessary to have a successful replant to walnut. Fumigation is expensive, however the carryover problems from the previous orchard can prove far more costly. Cost savings with fumigation can be achieved by opting for strip fumigation specifically mapped for the tree rows, instead of broadcast fumigation. Adequate fumigant distribution can be problematic especially on clay-type soils. To ensure a successful fumigation, it is critical to dry down the soil to 12% moisture for optimal fumigant efficacy.

      2. Replant on an appropriate rootstock. Consider the potential benefits of clonal Paradox rootstocks, particularly against nematodes (VX211) and Phytophthora (RX1). See detailed rootstock traits in the table below.

      Find more about orchard removal and replant steps at: sacvalleyorchards.com/walnuts/diseases/considerations-for- replanting-walnut-orchards. Finally, if you are removing and planting a new walnut orchard, a key document to have on hand when financially planning is the Sacramento Valley UC Walnut Cost Study, which can be found at: coststudies.ucdavis.edu/en/current/commodity/walnuts.

      Article By:

      -Luke Milliron, UCCE Orchards Advisor Butte, Glenn & Tehama Counties

      -Katherine Jarvis-Shean, Orchards Advisor Yolo, Solano & Sacramento Counties

  • Economic Injury Disaster Loans Now Available to Ag

    U.S. Small Business Administration Administrator Jovita Carranza announced today thatagricultural businesses are now eligible for SBA’s Economic Injury Disaster Loan (EIDL) and EIDL Advance programs. SBA’s EIDL portal will reopen today as a result of funding authorized by Congress through the Paycheck Protection Program and Healthcare Enhancement Act. The legislation, signed into law by the President one week ago, provided additional funding for farmers and ranchers and certain other agricultural businesses affected by the Coronavirus (COVID-19) pandemic.

    “For more than 30 years, SBA has been prohibited by law from providing disaster assistance to agricultural businesses; however, as a result of the unprecedented legislation enacted by President Trump, American farmers, ranchers and other agricultural businesses will now have access to emergency working capital,” said Administrator Carranza. “These low-interest, long-term loans will help keep agricultural businesses viable while bringing stability to the national’s vitally important food supply chains.”

    Agricultural businesses include businesses engaged in the legal production of food and fiber, ranching, and raising of livestock, aquaculture, and all other farming and agricultural related industries (as defined by section 18(b) of the Small Business Act (15 U.S.C. 647(b)). Eligible agricultural businesses must have 500 or fewer employees.

    The SBA will begin accepting new EIDL applications on a limited basis only, in order to provide unprecedented relief to U.S. agricultural businesses. For agricultural businesses that submitted an EIDL loan application through the streamlined application portal prior to the legislative change, SBA will move forward and process these applications without the need for re-applying. All other EIDL loan applications that were submitted before the portal stopped accepting new applications on April 15 will be processed on a first-in, first-out basis.

    For more information, please visit: https://www.sba.gov/funding-programs/disaster-assistance.  Also, visit the all-encompassing coronavirus business guide for small business owners, at: Coronavirus Small Business Issues and Solutions Guide

  • California Pistachio Crop Update: Summer 2018

    What started off as a potentially disastrous year for the pistachio industry is now shaping up to potentially be one of the largest crops ever for California growers.  Watch this brief interview with Richard Matoian from American Pistachio Growers as he provides an update on the crop and invites growers to APG’s Summer Luncheon this week.  Read more about it in Pacific Nut Producer Magazine.