 Extremely high populations of Two-spotted Spider Mites are occurring in Central Florida as a result of unusually warm February temperatures. Populations are spreading in plant canopies, including flowers and fruit, causing significant economic losses to growers on many farms. Two-spotted Spider Mite (Tetranychus urticae) is a persistent threat to the strawberry industry nationwide. Their hidden colonization of plant canopies, rapid reproduction, and ability to develop resistance to chemical treatments make them especially difficult to control. Strawberry growers face significant risks because spider mites damage plants by reducing photosynthesis, stunting growth, and feeding directly on fruit causing significant crop losses annually.  With higher than normal temperatures this past month, damaging populations have broken out across Central Florida strawberry plantings and growers are in need of effective solutions to mitigate this escalating threat.
Published data developed by Dr. Frank Sances of Ag Metrics Group has shown that an average of 10-15 mites per leaf can cause measurable plant damage and yield loss. The plants shown above have had 100 or more mites per leaf for weeks at a time. Spider Mite Trials: Secure A Spot in Our Spring "Add-On" Program Currently, we are planning the Spring 2025 program at our Dover, FL strawberry research station. If you have a conventional or alternative acaricide in development, our “add on” trial program has openings for additional entries. Foliar sprays, root drench application and drip irrigation methods are possible. Your product will be compared with industry standards for efficacy against eggs, nymphs and adult stages. At this time of year, 2-3 applications are normally made to manage this pest. Join Our Spring Strawberry Program Today The industry is searching for products that can help growers manage the area-wide outbreak and prevent further losses economically important crop. If your product has potential efficacy against spider mites, please give us a call while we are filling slots in our field trial program in Central Florida. The industry is searching for products that can help manage the area-wide outbreak and prevent losses to this economically important crop. Two-Spotted Spider Mite is extremely difficult to control on strawberries and there are few effective control measures available to growers. Field trialing your potential solution in these real-world conditions could benefit everyone involved.
Please call Florida Ag Research Director, Dr. Balaji Aglave, directly at (813) 892-1104. You can also email him at [email protected] or Erin Downey at [email protected] to discuss these Florida trials now starting at our Strawberry Research Center in Dover, FL. For questions regarding field trials at any of our other stations nationwide including the California Strawberry research program also with lab and field two spotted spider mite trials please contact Brad Booker at [email protected] Highlighting Insights from the FSGA Field Day Presentation - Chilli Thrip Control on Strawberry1/15/2025
Today, at the Florida Strawberry Growers Association Field Day in Dover, FL, Dr. Frank Sances of Florida Ag Research (an Ag Metrics Group Comapny) shared key findings on Chilli Thrips Control in Strawberry: Comparison of Conventional and Organic Treatment Efficacy. The presentation offered a deep dive into:
Explore the findings of the presentation here (Click image below to view file):  Ag Metrics Group Announces Dr. Marja Koivunen as New Science Officer for Pacific Ag Research2/6/2024
 Dr. Marja Koivunen - Science Officer - Pacific Ag Research (Fresno, CA, February 6, 2024) – Ag Metrics Group, formerly known as Pacific Ag Group welcomes Dr. Marja Koivunen as Science Officer for the Western Region of the United States, and as the new Salinas Station Manager for Pacific Ag Research, the company’s West Coast Division.
Key Expertise and Collaborative Leadership Dr. Koivunen is distinguished for her broad knowledge of biopesticide product development and hands-on experience in greenhouse and field research, particularly with California crops and pest systems. In her new role, she will collaborate with senior management, including Dr. Frank Sances, the President and Founder of Ag Metrics Group, as well as with Brad Booker – Western Area Manager/Pacific Ag Research and Oscar Cuevas – Farming and Operations Manager/Pacific Ag Research, to manage the extensive portfolio of field, greenhouse and laboratory activities for the company. Dr. Koivunen is also well integrated into the California crop production industry and holds active Agricultural Pest Control Adviser (PCA) and Certified Crop Consultant (CCA) licenses. Strategic Expansion and Vision This strategic appointment was announced at the 2024 California Plant and Soil Conference in Fresno, California. Dr. Sances commented on her joining the Pacific Ag team, "With the expansion of our West Coast Operations, Dr. Koivunen is joining us at just the right time. We’ve grown both geographically and in our research facilities with almost 50,000 sq. ft of California greenhouses, a new field-lab complex in Fresno County, and now have presence in Davis and the greater Sacramento Valley." Dr. Koivunen, expressing her excitement about the new role, stated, “I have long respected the work of Pacific Ag Research. I look forward to joining Pacific Ag’s science faculty and a stimulating environment that will allow me to develop new techniques and services for our clients' research programs.” A Career Marked by Excellence Dr. Koivunen's career includes significant roles at Vestaron Corporation, AMVAC Chemical Corp, Novozymes Biologicals, Eurofins Agroscience Services, and Marrone Bio Innovations. Her academic accomplishments include a Ph.D. in Soil Science, Plant Nutrition and Soil Microbiology from UC Davis and a M.Sc. in Agricultural Chemistry and Physics/Soil Science from the University of Helsinki. She was also a Fulbright Scholar in Soil Microbiology at Cornell University. Additionally, she is a Fellow of the American Chemical Society (ACS) AGRO Division and has served at the Governing Boards of the ACS AGRO and the American Society of Agronomy's California Chapter. She has authored and co-authored multiple peer-reviewed articles and patents. F.V. Sances (1), B. Aglave (1), K. Williams (1), C. Boone(1), B. Booker (2), W. Schonborn (3), & E. Rosskopf (3) (1) Florida Ag Research, (2) Ag Metrics Group, (3) US Department of Agriculture (Collaboration Only)
Here, we build on previous work from these and other researchers to develop site-specific “Best Practices” for alternative nematode and pathogenic soil fungi control for Central Florida. Two summer solarization trials took place at the Dover Lab and yields for ASD + Solarization were on par with fumigation. This season we increased precision of applications for manure and molasses and included raised beds or flat ground comparisons.
Flat Ground: In many commercial settings, ASD and Solarization treatments are easier accomplished on flat ground. Here, the chicken manure was applied to the treated area utilizing a cone spreader, followed by mechanical injection of molasses, then the area was disked and plastic mulched.  Methodology
Raised Bed: Planting beds were inoculated with soil-borne diseases, Sting nematodes, and common weed seeds before treatment. Four replicates of five treatments were randomly placed into planting beds previously farmed in strawberries. Following summer solarization/ASD, beds were formed in September (Fumigated) and in October, half of the ASD and Solarization plots with clear plastic were painted black. Flat Ground: Bare ground areas were inoculated with soil-borne diseases, Sting nematodes, and common weed seeds before treatment. Four replicates of four treatments were placed into previously farmed strawberry ground. Each plot comprises one planted bed 120 ft in length. Following summer solarization and ASD plots, beds were formed in September.  Crop Health     Soil Pest Control
Pest control comparison between raised bed and flat ground experiments. Root damage severity due to Macrophomina (a) was greater in the untreated inoculated plots. (b) Fumigated soil had significantly lower incidence of soil pathogens.
Yields       Cumulative Yield data for approximately 6 weeks of harvests at the raised bed (a) and flat ground (b) fields, compared to cumulative annual yield from the previous years’ study at Dover (c) and the Duette, FL, grower site that was a flat ground treatment (d).
Summary: Management of soil borne pests on commercial Florida strawberry farms has long been a challenge to growers. In recent years, this has been particularly difficult with regulatory pressures on the use of remaining chemical soil fumigants and the costs associated with their use. Also, while still in its infancy, organic strawberry production in Florida has been established by several shippers to try to meet the demand for this strawberry market segment. To provide growers with alternative non-fumigant soil pest management techniques, this project builds on previous work from these and other researchers with an on-site demonstration of Soil Solarization and Anaerobic Soil Disinfestation for the 2023 grower outreach by our collaborative groups. Click Poster to Download  We’re ready for the 2023 research season! 2023 is shaping up to be the largest data generation season on record across the West, Midwest, and Southeast US. The last few years under Covid have brought new pest outbreaks in key cropping systems coupled with an industrywide pent-up demand for R&D data for product developers and growers alike. In response, our company has doubled down on our core capabilities to give our clients the insights they need to accomplish product development goals and drive new value for our farmers. The world has reset–leaving an opening for biology to move in new ways. Over the last three years, we have witnessed significant crop losses across our farming regions. This includes a serious new Thrips / INS Virus / Pythium “Pest Complex” on lettuce in the Salinas Valley of California, explosive Tar Spot outbreaks in the Midwest, and strawberry crop losses from newly introduced Neopestalotiopsis in Florida. These and other agronomic challenges surfaced during Covid and have kept us busy working to understand their epidemiology and uncover new opportunities for control.
 Frank Sances, President To meet this demand, Ag Metrics Group has significantly increased facilities, professional staff, and methods development to offer an expanded portfolio of experimentation for our sponsors. Research capabilities added this year include five new climate-controlled greenhouses for California and Florida. In Michigan, we built 4,800 sq. ft. of new Entomology and Nematology laboratories, surrounded by 80 additional acres of premium irrigated farmland. All told, Ag Metrics Group has grown to 12 science laboratories, 70 full-time staff, and several hundred acres of company-owned farms in key agricultural regions of the American West, Midwest, and Southeast. Our client base includes most all ag-product manufacturers, many regional grower cooperatives, and governmental agencies that include state universities and the USDA. Now more than ever, we recognize the critical impact data-driven product development has on our industry. These solutions enable growers to respond to new challenges and opportunities with confidence in the stewardship of their land. Privatized science is the key to rapid and robust biological insights to demonstrate value in a dynamic and diverse set of pest and environmental applications into the future. We look forward to our continued partnership with our clients and wish you all a very successful year. Frank Ag Metrics Group Provides “First Report of Neopestalotiopsis rosae Causing Crown and Root Rot of Strawberry in California” American Phytopathological Society of America (APS) Dan Lawrence 1, Greg Brittain 1, Balaji Aglave 2, Frank Sances 3 1 Pacific Ag Research, 2 Florida Ag Research, 3 Ag Metrics Group Following these authors’ research in Central Florida strawberry plantings in late 2019, they found this devastating fungus again in Salinas, California, on newly transplanted strawberries in the winter of 2021. Since their original Florida research, the fungus is now well established throughout the Southeast and has become the key pest for this crop early season. This subsequent finding in California is the first scientific proof that it has moved westward into other US strawberry producing areas, and has the potential to cause crop losses to growers in that region. Turf & Ornamental Capabilities Expanded Companywide in 2023
California Adds 5,400 sq. ft. of Greenhouses
New San Joaquin Valley Field-Lab at Our Five Points Station In 2022, we remodeled 1,200 ft2 of administrative offices, opened a new 2,500 ft2 climate-controlled field lab, and installed additional fruit, nut, and vine plantings. We added more microscopy, a walk-in cooler, a post-harvest drying unit, and a deep well with a new reservoir for sustainable water at this site going forward. The past year we purchased more off-site equipment including a new tow vehicle, support trucks, and another mobile orchard sprayer platform for off-site trials. Together with a new research biologist, these assets comprise a well-equipped and staffed Central Valley research campus with a wide geographic radius of field activities for product development needs. Michigan Ag Research Expansion in Final Stage of Completion To advance our goal to provide the best possible administration and science campus at Albion, Michigan Ag Research is now in the final stages of construction of a 4,800 ft2 building that will include:
In addition to the new laboratory facilities, 80 acres of irrigated farm land were added, bringing the total station size to 200 acres. Publicly Funded Research: |
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