A 2024 article by Lela Nargi of The Guardian discussed the issue of potable water in schools and how inconsistent regulation can put children at risk for under-hydration or lead exposure. The article highlighted a 2022 study by NPI's Christina Hecht and collaborators and included quotes from Hecht, who described the development of legislation for drinking water in the federal child nutrition programs. In 2010, the Healthy, Hunger-Free Kids Act made free potable drinking water a requirement during meal times at all US schools participating in the National School Lunch Program and childcare facilities participating in the Child and Adult Care Food Program. However, states' varied implementation of the law plus a lack of funding for drinking water needs has left some schools with inadequate water sources or compromised quality. While a 2019 USDA survey of 1,257 schools indicated a 95% compliance rate with the Healthy, Hunger-Free Kids Act, experts including Christina Hecht, who coordinates the National Drinking Water Alliance with the Nutrition Policy Institute, highlight how this survey did not collect adequate data to determine whether safe and appealing drinking water was truly accessible. Lead contamination is a primary concern. Hecht and partners' 2022 study found 13% to 81% of 5,688 schools in seven states with available data had tap water with lead levels above 5 parts per billion (ppb). For comparison, FDA requires that bottled water have no more than 5 ppb of lead while the American Academy of Pediatrics recommends a maximum of 1 ppb for school drinking water. States have varying requirements for lead testing of school and licensed childcare drinking water and, while federal funds for testing have been available since 2016 through an EPA-administered program, it was only with the passage of the Bipartisan Infrastructure Law of 2021 that federal funds were allocated to assist schools with remediation of lead in tap water.
- Author: Ben A Faber
Each year the California Avocado Commission partners with Land IQ to produce a Statewide Avocado Acreage and Condition Analysis report utilizing digital satellite imagery, aerial photography and analytical tools to survey California avocado groves. This data helps the Commission make informed budgeting and marketing decisions and provides industry members with spatial data concerning crop type, location, condition and density. See the full 2023 Report HERE.
According to the report:
- In 2023 there were 52,534 planted avocado acres
- The majority of growing acreage is located in Ventura, San Diego, Santa Barbara, Riverside and San Luis Obispo Counties with a total of 50,818 planted acres
- The five top-producing counties reported 1,059 new/young acres and 3,399 topped/stumped acres
The report also provides acreage data by zip code, county, condition, year planted and density.
The California Avocado Commission's crop estimating team in conjunction with Land IQ uses the latest in remote sensing techniques to assess avocado acreage in production. As technology continues to advance refinements in our fourth generation of remote sensing techniques were applied to satellite imagery collected during spring and summer months. The imagery processing techniques include; segmentation into homogenous polygons, retention of tree crop polygons, calculation of average crop canopy moisture and vegetation indices, analysis of change maps from previous inventories, and classification of avocado groves into four categories; producing, topped/stumped, new/young, and abandoned. Aerial imagery (for a real-world view), and satellite imagery (for spectral and temporal data) are integrated into previously classified avocado acreage and analyzed for current condition of California avocado acreage statewide.
- Author: Kathy Keatley Garvey
It's nicknamed "the sunflower bee" for good reason.
It forages on sunflowers.
We recently spotted a longhorned bee, Svastra obliqua, also called "the sunflower bee," on Gaillardia, aka blanket flower, a member of the sunflower family, Asteracease.
Asteraceae is comprised of more than 32,000 known species of flowering plants. And Svastra? Fourteen different species occur in North America and seven in California, according to the UC Berkeley Urban Bee Lab, which provides this description:
"Overall they are medium to large, with stout bodies, gray hair on their thorax, and irregular striping on their abdomen. Females can be distinguished by their scopae, which are located on their hind legs. They additionally are larger compared to males and have dark faces. Males have yellow markings on the bottom section of their faces and are typically more elongate in body size. Both male and female bees have long antennae. Svastra sp. look very similar to Melissodes without using a microscope. However, Svastra sp. will have longer antennae than both Anthophora and Diadasia so the difference is more noticeable."
Those long antennae...those eyes...those mesmerizing eyes...
You can read more about California's native bees in California Bees and Blooms: a Guide for Gardeners and Naturalists, a book authored by the University of California team of Gordon Frankie, Robbin Thorp, Rollin Coville and Barbara Ertter. All are affiliated with UC Berkeley. Thorp, who received his doctorate in entomology from UC Berkeley, was a member of the UC Davis entomology faculty for 30 years, from 1964-1994. He achieved emeritus status in 1994 but continued his research, teaching and public service until a few weeks before his death on June 7, 2019.
- Author: Pamela S Kan-Rice
Roger Duncan, UCCE farm advisor in Stanislaus County, retires after 36 years
For more than three decades, tree fruit and nut growers have depended on the advice of Roger Duncan, UC Cooperative Extension pomology farm advisor in Stanislaus County, to improve their production practices. Duncan, whose research and extension program focused on almonds, peaches, grapes and other tree crops, retired July 1.
“Roger Duncan has been an extraordinarily relevant researcher for the predominant crops in Stanislaus County,” said Rep. John Duarte, owner of Duarte Nursery in Hughson. “His research has encompassed rootstock and variety selection, tree spacing, chemical inputs and spraying, fertilizers, pruning and replanting amongst other projects.”
Duncan began working for UC ANR in 1988 as a field assistant to Integrated Pest Management advisor Jim Stapleton after earning a master's degree in plant science and plant pathology from Fresno State and a bachelor's degree in the same subjects from UC Davis. In 1990, he became a UC Cooperative Extension in pomology farm advisor in Stanislaus County.
During Duncan's tenure, the planted acreage of tree and vine crops has tripled in Stanislaus County to nearly 1,900 farms on over 230,000 acres. His research has helped to improve production efficiency through improved rootstocks, crop varieties and production practices.
“Roger provides growers with resources and tools on nutrition, sprays, nutrient deficiencies, calendars, costs, pest management and other horticultural practices,” Duarte said. “His work has had significant impact on the productivity and quality of almonds, peaches and grapes. Breeders, universities, nurseries, growers and marketers have all gained from the wisdom and dedication of Roger Duncan.”
Growing up in Modesto, Duncan wasn't raised on a farm. “I had friends whose families farmed orchard crops, so I had some exposure,” he said. “I caught the Extension bug while working as a summer intern for the pomology advisors in the Stanislaus County UCCE office after I graduated with my B.S. That is what inspired me to return to school with the goal of being a pomology farm advisor.”
Reducing production costs
To help growers lower production costs, Duncan introduced orchard practices aimed at reducing hand labor and other inputs. As a result of his research, minimal pruning has become the norm in California almond production, reducing input costs and carbon output and increasing yield. He also improved monitoring and management techniques of established and invasive diseases and insect pests.
“The practical applications Roger brings to the grower community are invaluable,” said Mel Machado, Blue Diamond Almonds vice president for member relations and Stanislaus County almond grower. “His minimal pruning study stood growers on their heads. People had preconceived ideas about pruning. He blew that up. His research showed that after you get the tree's frame, all you need to remove are the dead and occluded branches. With the market depressed, we needed to cut costs. He said, ‘You don't need pruning.' Now I'm growing bushes.”
Art Bowman, a crop adviser with Salida Ag Chem, agreed that Duncan's pruning research had an impact. “Roger's pruning trial that lasted over 20 years was a much-discussed subject among growers,” Bowman said. “Growers' pruning practices definitely changed due to Roger's research, with early emphasis on structural development and, later in the tree's life, concentrating on tree accessibility and deadwood removal.”
In 1990, when Duncan joined UC Cooperative Extension, California had 408,700 acres of almonds, according to the California Agricultural Statistics Service. Now the state has over 1.5 million acres of almonds.
About 75% of the farms Duncan has served have 40 acres or less, farmed by “small” or “part-time” farmers, who needed to learn basic horticulture and pest management. Stanislaus County also is home to some very large, sophisticated growers, who Duncan has kept apprised of new technology.
“I believe that personal interaction offers the most memorable means of information transfer, which is why I held an average of 12-plus extension events per year, gave 18-plus extension presentations per year, and went on an average of over 75 individual farm calls per year,” Duncan said. He also provided information via videos, blogs, podcasts, radio shows, newsletters, news media and extension publications as well as commodity boards.
Along with Duncan's research, Bowman has appreciated his availability. “Roger was always ready to take a call, make orchard visits and listen to a grower's concern or problem,” he said.
In 1997, Duncan began hosting twice monthly Tree & Vine Integrated Pest Management breakfast meetings for pest control advisers and growers to discuss current and potential pest threats. These meetings have continued for 28 years.
He speaks ‘farmer'
Machado attributes much of Duncan's success to his communication skills. “His research is scientific and he speaks ‘farmer,'” he said.
Machado gave rootstock as an example. “Roger is my rootstock resource; he knows rootstocks better than anybody,” he said. “His rootstock trial is dirt simple. There's a different rootstock every five trees. You can see walking down the row the differences in the rootstocks.”
From his field evaluations, Duncan identified a complex hybrid rootstock that is highly tolerant to ring nematode, bacterial canker and salt toxicity. He found other hybrid rootstocks that boost crop yield while reducing risk from soil chemistry and soil-borne disease challenges, enabling almonds to be grown in the marginal soils on the west side of the North San Joaquin Valley. To help growers choose the appropriate rootstock for their soil, he wrote a comprehensive ANR publication, made a video and worked with the UC Fruit & Nut Center to create an interactive rootstock comparison website.
Over the last 15 years, use of hybrid almond rootstocks has increased dramatically. Burchell Nursery now sells approximately 40% of their trees on hybrid rootstock compared to less than 5% of almond trees 15 years ago, and more than 95% of Duarte Nursery almond trees are on hybrid rootstocks, according to Duncan.
“We've worked with Roger for years, back when he didn't have a mustache and then when he had a mustache,” said Robert Longstreth, who grows almonds, walnuts and cherries.
“Roger does research in the area you need, not frivolous stuff that you don't need,” said Longstreth, who has benefited from Duncan's research on pruning, rootstocks, irrigation timing, plant nutrition and disease control. “He's thought very highly of by almond growers. When he has something to say, people listen.”
The UCCE farm advisor has overseen long-term trials to learn how to design and maintain an almond orchard to capture early production, maintain long-term yields and maximize profits. “In the first 17 years of the orchard design project, I increased cumulative net profits by up to $14,000 per acre, including increased yield while reducing labor and carbon inputs,” Duncan said.
Influenced by Duncan's tree-spacing research results, growers have increased almond tree density by 20% per acre statewide, leading to higher crop yields, longer-living orchards and better farm economic sustainability.
As California's expert on almond rootstocks and almond orchard design, Duncan has taught the subjects for the UC Almond Production Short Course, was lead author on the UCANR publication “Almond Rootstocks,” wrote the rootstock chapter, and co-authored the orchard design chapter of the UC Almond Production Manual. He was invited to Chile, Spain and Australia to share his expertise with growers there.
Expanded programs for kids and gardeners
In addition to being a farm advisor, Duncan served as director of UC Cooperative Extension in Stanislaus County from 2011 through 2013 and again from 2017 through 2020. As the UCCE county director, he acquired new county funding to hire a 4-H youth development program representative in 2018 to provide more learning opportunities for local, underrepresented children.
That year, he also acquired county funding to hire a full-time Master Gardener coordinator and launched the first UC Master Gardener Program in the county.
“I felt very lucky to serve as an advisor in the same county where I was born and raised,” Duncan said. “I am most proud of the trust I have developed with the growers and other clientele.”
Professional awards
Recently, Duncan's peers at UC ANR honored him with a Distinguished Service Award for his outstanding extension program, which gave growers the data and confidence to adopt orchard practices that have bumped up the productivity and economic value of California almond orchards.
The popular breakfast meetings to discuss pest management earned Duncan and his UC Cooperative Extension farm advisor colleagues the Entomological Society Award of Extension Excellence and the California Department of Pesticide Regulation's IPM Innovator Award. The California Legislature also recognized the breakfast club's commitment to sustainable pest management.
Recognizing Duncan's extraordinary contributions, the university recently granted him emeritus status.
“I have a lot of respect for the other farm advisors, but Roger is at the top of the pile,” said Machado, who has served on Almond Board committees with Duncan and known him since he joined UC Cooperative Extension. “I'm going to miss him. You can absolutely count on him.”
Congressman and nurseryman Duarte added: “While he will be sorely missed by us in his role of pomology advisor for the University of California, we hope that he keeps his interest, and continues to influence the food production industry in the Central Valley.”
- Author: Peggy Smith
We are a gardening family, nothing very grandiose, garden size and configuration determined by the situation, a few pots or postage stamp sized at times, other times more landscaped. One of the great delights and joys of visiting family and friends is to see the changes and development of their gardens since the last visit. Having spent my early childhood in England often, as part of these visits, we would explore a local ‘Open Garden' often attached to one of the great English houses, many special memories are of these trips with friends and relatives to these ‘Open Gardens' after which we would have a picnic or stop by the local tea shop for traditional Eccles cakes and Bakewell tarts. With moves to different countries and cities there has always been a desire to look for, explore, enjoy, but also to learn from local public or open gardens.
Ancestors of my family worked at Chatsworth House in Derbyshire, England, where in the early 1800's a pioneering young horticulturist and innovative garden designer, Joseph Paxton, with his wife Sarah developed and oversaw the creation of many of Chatsworth's most famous gardens and features. You may have seen the 2005 version of Pride and Prejudice with Keira Knightly and Mathew Macfadyen where Chatsworth and its gardens are featured as ‘Pemberley'. With our ‘lowly' family connection, to visit Chatsworth, we would always catch the bus from home to Derbyshire then walk over the moors past the ‘Eagle Rock' and the Wellington monument, then drop down through bracken that was often shoulder high on my 6-foot father, through what we called ‘Fairy Glen' with its babbling brook through the bluebells to the cottage in which my family lived. To the childish me, Chatsworth was ‘owned' by my family as we would ramble throughout the estate. Memories of riding down the path to ‘Fairy Glen' on my father's shoulders, my head popping over the tall bracken feeling as though I was swimming in a sea of fronds, playing imaginary games in nooks and crannies of the garden are still special to me.
With a move to Australia something similar to the tradition of the English great house open gardens was no longer a possibility. Walks through the ‘bush',rainforest and botanical gardens of Australia on family visits were now to be looked forward to with the tradition of family picnic or afternoon tea, still a punctuation point of the exploration, now enjoying ‘Aussie' cream buns andLamingtons. Much of Australia's flora is rugged while seemingly delicate and small but there are bold plants, such as theWaratah that catch the eye easily and a wattle in full bloom cannot be beaten. This gave me an added appreciation of the diverse beauty in the natural world.
California was the next stop, the Descanso Gardens and Huntington Gardens with its themed garden areas showing examples from around the world were places of peace and beauty in a busy city. Living up against the San Gabriel mountains I learnt not to pick the glorious red, three-leafed poison oak and loved to see the tall candles of Yucca miraculously grow on so little rain to display themselves on the shale of the hillsides.
With relatives in Seattle I have become a regular visitor and have been exploring the garden viewing opportunities there – quite a feast. A walk through the UW Botanical Gardens in March/April when the Rhododendrons and Azalea are out in full bloom is a feast for the eyes. On a recent visit I sampled the Japanese Garden and the Botanical Greenhouses on the UW campus. There is also theSammamish Big Rock Park Central where theSammamish Botanical Society has two projects, a Heritage Garden and a Lower Commons Native Garden.
https://www.sammamishbotanical.org/projects
https://seattle.curbed.com/maps/seattle-botanical-gardens-visit-horticulture
We have wonderful gardens in Yolo and nearby counties to explore but for me it is also a treat to discover gardens of other climates when traveling. I may not be able to grow the plants I see there in our Yolo County climate – too hot, too dry, not cold enough, too cold but I love seeing the adaptations, diversity and beauty in the plants that populate our wonderful blue marble home. Plus, I have happy memories of family and friends, whether local or far away, combined with garden adventures – who could ask for more?