Recent News
Senior Automation Engineer Mojtaba Ahmadi participates in FIRA USA panel discussion
Oct 3, 2023
Mojtaba Ahmadi, Senior Production Automation Engineer with the California Strawberry Commission and Cal Poly Strawberry Center, attended last week the 2023 FIRA USA conference event, held in Salinas, CA. Mojtaba served on a four-person panel in the "Practical translation of R&D and technology to the California strawberry industry" panel discussion session. FIRA USA is the largest and only 3-day event for autonomous farming and agricultural robotics solutions, featuring 25+ robots for in-field demos in real conditions for specialty crops, vegetables, vineyards, orchards and more. Learn more about FIRA @ https://fira-usa.com
Photo by Russ Kabaker (Mojtaba Ahmadi, second from left in attached photo)
Looking forward to our next growing season!
Sep 27, 2023
Center student assistant Marina Gutierrez (CAFES, Animal Science major) learned how to operate our John Deere during last week's removal of our 2022 crop in Field 25. The implement she used cuts the plastic mulch down the middle of the bed and digs up the furrows, making it easier to pull the mulch from the ground. It can take up to two passes in our heavy clay soil to complete this job.
Recent ASHS podcast episode on California strawberries
Sep 21, 2023
The American Society for Horticultural Science has a podcast called “Plants, People, Science”. Take a listen to Episode 7 (The Sweet and the Not-so-Sweet of the U.S. Strawberry Industry) where Gerald Holmes (Strawberry Center, Director) discusses many aspects of the California strawberry industry, including robotics, labor, organic production, diseases, fumigation and more.
FYI: Gerald's interview begins after the podcast introductory segment @ about 6:15 minutes on the timeline.
Listen to this episode online or on Apple, Spotify, Amazon Music, iHeart radio, Google, Podchaser, and more.
Team attends Strawberry Production Meeting
Sep 19, 2023
Several members of our pathology team attended the 22nd UC-ANR Annual Strawberry Production Meeting, held in Ventura County on 12 September. The Strawberry Center was represented by Sam Simard and Joseph Ramirez (M.S. students), Lawson Orradre (Field technician), Kyle Blauer (Field Research manager), Shashika Hewavitharana (Center pathology program leader) and Gerald Holmes (Center director). Shashika and Joseph delivered presentations about Center research projects and findings.
Learn about increasing fungicide resistance in our latest research blog post
Sep 14, 2023
Our latest research blog post discusses a new publication that points to some upward trends that should be concerning to California strawberry growers, PCAs and fungicide registrants. Resistance is increasing to most active fungicide ingredients, with increases in multiple resistance observed as well.
Learn more @ https://strawberrycenterblog.com/2023/09/14/new-publication-confirms-trends-in-fungicide-resistance/
Test your strawberry flower anatomy skills, Part 3
Sep 7, 2023
How does calyx size and shape affect strawberry color and susceptibility to decay?
The architecture of the calyx (or cap) on strawberries is an important feature to consider. If the calyx is large, it will trap moisture and promote decay (far left). If it is excessively reflexed, it looks a bit odd (far right). The perfect fruit would have a small to moderately sized calyx that is slightly reflexed as opposed to appressed (center). This will give the freshness color indicator while not promoting decay.
Watch our short video to learn more about strawberry plant anatomy!
https://youtu.be/qL_SpbZvwHA
We are proud of our partnership with GleanSLO
Sep 1, 2023
A food rescue program of the San Luis Obispo (SLO) Food Bank, GleanSLO has been rescuing produce from local farms and backyards in SLO County for over 12 years. To date, the group has rescued over 2.8 million pounds of produce from local farms, orchards, backyards, and farmers’ markets that would have otherwise gone to waste. Donors with extra produce contact their team who will mobilize a group of volunteers to meet up and harvest the extra produce. This collected produce is donated to the SLO Food Bank and distributed via local programs and hunger relief networks to those in need throughout the local community.
Thank you for your amazing work, GleanSLO!
Learn more about GleanSLO @ slofoodbank.org/food-rescue
Test your strawberry anatomy skills, Part 2
Aug 29, 2023
Strawberries are not considered true berries by scientists. They are called "pseudocarps", and the part of a strawberry that we eat is actually the "receptacle", the part of the plant that produces the fruit (rather than the fruit itself).
A: PEDICEL or stem.
B: PITH. Spongy tissue in the center; less flavorful. The size of the pith varies by variety.
C: ACHENE. Most people think these are seeds, but actually they are the TRUE FRUIT of the strawberry, similar to a sunflower seed and its shell. A medium-sized strawberry has about 200 achenes.
D: CALYX. Also called the "cap", the calyx is made up of SEPALS which look like small leaves.
E: VASCULAR BUNDLE. This "string" of lighter-colored flesh connects the pith with an achene.
Watch our short video to learn more about strawberry plant anatomy!
https://youtu.be/qL_SpbZvwHA
Can bees be used to protect strawberry from Botrytis cinerea infection?
Aug 24, 2023
Wouldn’t it be wonderful if we could get bees to deliver an effective agent to strawberry flowers that would protect them from infection by Botrytis cinerea? Researchers in Sweden used bumblebees to pick up a biocontrol fungus (Aureobasidium pullulans) and deliver it to strawberry flowers, reducing Botrytis fruit rot by 45% and doubling the fruit’s shelf life.
That’s impressive, especially in light of our own results with the same biocontrol fungus where it showed no efficacy against Botrytis fruit rot under field conditions.
So, what’s going on?
Why such a big difference between their results and ours?
✭✭ Read more in our latest research blog post ✭✭
https://strawberrycenterblog.com/2023/08/24/botrytis-and-bees/
Center pathology team presents at annual APS meeting
Aug 22, 2023
Three members of our pathology team presented at the annual meeting of the American Phytopathological Society held on August 12-16 in Denver, Colorado.
✓ Cooper Calvin (MS student) presented a poster on 'Emerging diseases and abiotic disorders in California strawberries'; Delivered an update on Neopestalotiopsis rosae pathogenicity tests in the Small Fruit Disease Worker's Discussion; And competed in the quiz Diagnostic Bowl event (go Cooper!).
✓ Joseph Ramirez (incoming MS student) delivered a short presentation on Macrophomina and Verticillium cultivar trials in the Small Fruit Disease Worker's Discussion.
✓ Dr. Shashika Hewavitharana (pathology team leader) presented on 'The effect of wheat cover crop on charcoal rot in strawberry' on behalf of Cal Poly alum Mary Steele; She also moderated the 'Soilborne Disease Management' technical session.
Cal Poly Strawberry Center alum Dr. Scott Cosseboom, currently a postdoctoral researcher at the University of Maryland, presented a poster on 'Validation of two disease prediction models in Maryland wine grape vineyards for ripe rot caused by Colletotrichum spp.'. Alum Jack Koster, now a lecturer in the Biology & Chemistry Department at CSU-Monterey Bay, also attended along with six students from his department, all presenting posters.
