Pacific Nut Producer Magazine

Category: Weather

  • Protecting Workers from Unhealthy Air Due to Wildfire Smoke

    Cal/OSHA is reminding employers that California’s protection from wildfire smoke standard is still in effect, and they must take steps to protect their workers from harmful exposure to unhealthy air due to wildfire smoke.

    “Employers are obligated to protect their outdoor workers and must evaluate the health hazards posed by wildfire smoke,” said Cal/OSHA Chief Doug Parker. “If employers cannot move operations indoors where air is adequately filtered and they do not have access to respiratory protection, they may need to halt operations until the outdoor air quality improves.”

    Smoke from wildfires contains chemicals, gases and fine particles that can harm health. The greatest hazard comes from breathing fine particles in the air (called PM2.5), which can reduce lung function, worsen asthma or other existing heart and lung conditions, and cause coughing, wheezing and difficulty breathing. These types of respiratory conditions also make the effects of COVID-19 more severe.

    If employers move operations indoors or into enclosed spaces, they should be sure to follow guidelines for prevention of COVID-19 transmission in the workplace.

    When wildfire smoke affects a worksite, employers must monitor the air quality index (AQI) for PM2.5. Employers can monitor the AQI using the following websites:

    If the AQI for PM2.5 is 151 or greater, employers must take the following steps to protect employees:

    • Communication – Inform employees of the AQI for PM2.5 and the protective measures available to them.
    • Training and Instruction – Provide effective training and instruction to all employees on the information contained in section 5141.1 Appendix B.
    • Modifications – Implement modifications to the workplace, if feasible, to reduce exposure. Examples include providing enclosed structures or vehicles for employees to work in, where the air is filtered.
    • Changes – Implement practicable changes to work procedures or schedules. Examples include changing the location where employees work or reducing the amount of time they work outdoors or exposed to unfiltered outdoor air.
    • Respiratory protection – Provide proper respiratory protection equipment, such as disposable respirators, for voluntary use.
      • To filter out fine particles, respirators must be labeled N-95, N-99, N-100, R-95, P-95, P-99, or P-100, and must be labeled as approved by the US National Institute for Occupational Safety and Health (NIOSH).

    “Cal/OSHA is working diligently to identify viable available temporary alternatives that would provide workers with an acceptable alternative to a compliant respirator such as an N-95 mask,” added Chief Parker.

    CalOES and the California Department of Food and Agriculture are working in partnership to provide approximately one million N-95 masks to help protect farmworkers from wildfire smoke. County Agricultural Commissioners in affected counties will distribute the masks.

    If the AQI for PM2.5 exceeds 500, respirator use is required. Employers must ensure employees uses respirators and implement a respiratory protection program as required in California’s respiratory standard. For information or help on developing a respiratory protection program, see Cal/OSHA’s Respiratory Protection Fact Sheet.

    Guidance for employers and workers on working safely in conditions with smoke caused by the wildfires is available on Cal/OSHA’s web page, including information for protecting outdoor workers, details on how to protect indoor workers from outdoor air pollution, and frequently asked questions about N95 masks.

    Information on current wildfires is available from CalFire and the Incident Information System website.

    Cal/OSHA helps protect workers from health and safety hazards on the job in almost every workplace in California. Employers and workers who have questions or need assistance with workplace health and safety programs can call Cal/OSHA’s Consultation Services Branch at 800-963-9424.

    Complaints about workplace safety and health hazards can be filed confidentially with Cal/OSHA district offices. Employees with work-related questions or complaints may contact DIR’s Call Center in English or Spanish at 844-LABOR-DIR (844-522-6734).

  • USDA-NASS Predicts Third Straight Record-Breaking Almond Crop

    The U.S. Department of Agriculture (USDA) National Agricultural Statistics Service (NASS) is predicting a record California almond crop for the third straight year. The USDA-NASS 2020 California Almond Subjective Forecast estimates California almond orchards will produce 3.0 billion pounds of nuts this year, up 17.6 percent from last year’s 2.55 billion-pound crop. Forecasted yield is expected to reach 2,380 pounds per acre, 10.2 percent greater than the 2019 yield of 2,160 per acre.

    This forecast comes about three weeks after USDA-NASS released the 2019 California Almond Acreage Report, which estimated total almond acreage for 2019 up 10 percent from 2018 at 1.53 million acres. Bearing acres – orchards mature enough to produce a crop – were reported at 1.18 million acres, up 8 percent from the previous year. USDA-NASS also estimated preliminary bearing acreage for 2020 at 1.26 million acres.

    “Almond acreage and production continue to increase as California almond growers further invest in precision agriculture and responsible best practices,” said Almond Board of California (ABC) President and CEO Richard Waycott. “Through the industry’s advancements in water use efficiency to environmentally friendly pest management, zero waste efforts in the orchard and beyond, almond growers are committed to achieving our Almond Orchard 2025 Goals and the realization of the California almond orchard of the future.”

    The first of two production reports for the upcoming crop year, the Subjective Forecast is based on opinions obtained from randomly selected almond growers located throughout the state via a phone survey, this year conducted from April 20 to May 6. USDA-NASS asks individual growers to indicate their total almond yield per acre from last year and expected yield for the current year based on field observations. The sample of growers interviewed is grouped by size of operation, and different individuals are interviewed each year to ensure grower representation throughout the Central Valley. USDA-NASS then combines the yield estimates obtained from each grower and extrapolates the information to arrive at the numbers reported in the Subjective Forecast.

    This July, USDA-NASS will release its second production estimate, the 2020 California Almond Objective Report. While the Subjective Forecast provides an initial estimate of the 2020/2021 crop, the Objective Report will provide an estimate based on actual almond counts that uses a more statistically rigorous methodology to determine yield. In Dec. 2019, ABC’s Board of Directors approved a strategic approach to further improve the accuracy of USDA-NASS’s reporting. From 2020 on, the Objective Report will include measurements from 1,000 target orchards throughout the state (an increase of 150 samples from 2019) and provide nut counts on not one but two branches per tree. The Objective Report will also provide the weight, size and grade of the average almond sample broken down by growing region – no longer growing district – and variety.

    The 2020 California Almond Objective Report will be released on Tuesday, July 7, at 12:00 p.m. PT. USDA-NASS conducts the Objective Report, the Subjective Forecast and the Acreage Report to provide the California almond industry with the data needed to make informed business decisions, and thanks all farm operators, owners and management entities for their time in providing the information necessary to create these reports. — Article & Photo Courtesy of Almond Board of California

  • Flower Losses Due to Shrinking Habitats and Climate Change Hurt Prime Pollinators

    Without enough sugar in their diets, bumblebee queens can experience difficulty reproducing and shorter lifespans.  Hollis Woodard, assistant professor of entomology at UCR, has conducted multiple studies showing how loss of plant availability negatively affects the prolific pollinators. Previous research indicates a queen’s diet can impact how quickly her brood develops, or whether she’s able to live through hibernation.

    In a study published recently, Woodard and her team demonstrate that without adequate sugar, the queen’s fat body, which functions like a human liver, does not correctly produce enzymes required for healthy metabolism and detoxification from pesticides.

     

    “The fitness consequences of not producing enough of these enzymes, P450s, could ultimately be lethal, preventing reproduction or shortening lifespans,” Woodard said. “If you don’t outright kill a queen, but she can’t lay eggs, from a population standpoint you might as well have killed her.”

     

    Woodard’s team wanted to focus its research on bumblebee queens because they undergo an event called diapause, which is like hibernation. Queens gather an abundance of nutrients just before diapause, as it is likely one of the most vulnerable times in their lives.

     

    A queen’s ability to survive this period is not guaranteed without adequate nutrition. However, the team also wanted to know about the sublethal effects. “We wanted to ask if other signs of distress might be detectable in advance, and whether there are molecular signs queens might not make it through diapause,” Woodard said.

     

    The research team collected queen bumblebees of varying ages and fed them one of four diets ranging from no sugar to extremely concentrated sugar. They found queens in the oldest age group, roughly 12 days old, who were fed the most sugar, began to exhibit gene expression patterns consistent with the beginning of diapause. This suggests queens may have an internal mechanism to detect the amount of stored sugar in their bodies, Woodard said. By extension, it means there may be a way to detect in advance when queens do not have enough sugar to survive diapause, or for their fat bodies to produce enough enzymes to protect them from damaging pesticides.

     

    This research underscores the importance of bumblebee food resources, which have been dwindling in recent years due to habitat loss. “There are studies showing gaps in floral availability late in the season before diapause, when queens most need food,” Woodard said.

     

    In addition to habitat loss reducing bumblebees’ preferred plants, climate change may also be taking a toll. As winters become warmer, queens may emerge earlier from diapause in winter when fewer flowers are available to them. Their physiology becomes uncoupled from the seasons, making it less likely that they survive, or that their nests will be successful.

     

    Many bumblebee species are declining, which could eventually have consequences for the human diet. Bumblebees, unlike honeybees, are native to the U.S. and perform a type of pollination essential for some of humans’ favorite foods, such as tomatoes, blueberries, potatoes and almonds.

     

    Therefore, Woodard believes every effort must be made to ensure bumblebees, especially queens, have enough flowers to feed on. “It’s important for everyone from land managers to people with gardens to plant things bumblebees can feed on,” she said. — By Jules Bernstein, University of California, Riverside

  • Get Funding for On-Farm Conservation Projects with the USDA-NRCS

    From floods to drought, fire to hurricanes, NRCS provides disaster recovery assistance to farmers, ranchers and landowners through a variety of USDA programs. Watch this brief interview with Brooke Pippi to find out how NRCS can support you.

    Please thank our sponsor Duarte Nursery for their industry support and see them at their booth at Unified Wine & Grape Symposium in Sacramento, February 4-6 (Booth P1842).

  • Five Ways USDA Farm Service Agency Can Support Farmers Impacted by Wildfires

    Whether you’ve experienced wildfire damage on the farm or other disasters, disease outbreaks on your trees and vines — the USDA-Farm Service Agency has a program to support you. Watch this brief interview with Farm Service Agency California representative Lisa Velasquez as she explains some of these programs to get involved in.

    Please thank our sponsor Duarte Nursery for their industry support and see them at their booth at Unified Wine & Grape Symposium in Sacramento, February 4-6 (Booth P1842).

  • Want a Strong Start to the Crop Year? You Need To Mummy Shake

    Even though growers are just completing this year’s harvest, it’s never too early to start thinking about winter sanitation.

    Winter is the time to remove and destroy mummy nuts that harbor navel orangeworm (NOW) larvae, which can hatch in the spring and wreak havoc in the orchard. By removing the nuts, growers are eliminating both a shelter and food source for these overwintering pests. This practice falls in line with the strategic and effective Integrated Pest Management (IPM) program for NOW, one that includes different tactics depending on the time of the year.

    “Winter sanitation is the core of IPM programs,” said David Haviland, a UCCE farm advisor in Kern County who specialist in entomology and pest management.

    Here are some quick tips growers should keep in mind when preparing to remove mummy nuts from their orchards, a.k.a. “mummy shake”:

    • Mummy nuts become most obvious after trees have shed their leaves, and growers should look to knock all the mummies off the trees no later than Jan. 15.
    • A good time for winter sanitation is when dew has formed or after it’s rained because mummy nuts will have absorbed some moisture, making them heavier and more likely to fall. In addition, a wet orchard floor helps to increase NOW mortality rates.
    • Growers can remove mummy nuts by bringing the shaker through their orchards or hiring crews to knock mummies to the ground using long poles.
      • To note: Both hard- and soft-shell varieties can harbor overwintering NOW, so growers must be sure to remove mummies in both types.
    • Growers should aim to have fewer than two mummers per tree before bud swell (around Feb. 1). However, growers in the San Joaquin Valley should aim for less than one mummy per tree.
    • Once on the ground, mummy nuts should be swept into windrows and destroyed, either with a flail mower or by disking them into the soil, by March. 15.

    Removing mummy nuts and reducing NOW levels using environmentally friendly techniques is key to helping the California almond industry achieve its Almond Orchard 2025 Goals, one of which is to increase adoption of environmentally friendly pest management tools by 25% by 2025.

    Josette Lewis, the Almond Board’s director of Agricultural Affairs, said growers must realize that in the end the cost of efficient winter sanitation pays for itself.

    “It is important to recognize that the return on investment comes from both a higher yield after shelling and a higher price premium at the handler,” Lewis said. “In other words, without good winter sanitation, yield loss occurs due to rejection of mummy nuts from the previous year and heavily NOW-damaged nuts from the current season.”

    To help remind growers to break the link between mummy nuts and NOW, the Almond Board of California created a parody song that’s sure to be an “orchard smash.” It’s “The Mummy Shake” — and if you and your family dance and sing along, you’ll be in the running to receive tickets to a luncheon at The Almond Conference 2019 in Sacramento in addition to either tickets to Disneyland or a $500 Amazon gift card! Visit Almonds.com/NOW to learn more.

    Courtesy of the Almond Board of California

  • Stormy Weather Sets Back California Tree Nut Growers

    After so many years of drought, it’s difficult for growers to complain about all the recent rain events that have been occurring throughout California; however, the abnormally significant amount of precipitation this past month has posed its share of challenges to tree nut growers that have been anxiously awaiting entry into their orchards to make their much needed fungicide sprays and fertilizer applications.  Some growers did suffer significant crop loss due to hail storms West of Tulare.  Watch this brief interview with Tulare County Almond/Pistachio grower Brian Watte, also current Chairman of American Pistachio Growers, as he discusses the impact of the recent storms.  Read more about it in the coming issue of Pacific Nut Producer Magazine.