ONION WORLD
José Marchetti, business development director for Ecorobotix, shows off the company’s AI-powered precision sprayer. Learn more about it in a Q&A on pages 12-13. The National Onion Association Annual Convention, held Dec. 8-11 in Savannah, Ga., featured a busy field day with tours of G&R Farms, Bland Farms and Stanley Lodge. See story on page 4.
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dealing With Food safety Outbreaks
Story and photos by Dave Alexander, Publisher
The onion industry has seen numerous negative headlines over the last four years related to foodborne illness outbreaks, including a high-profile incident in October 2024 at McDonald’s restaurants in Western states.
The National Onion Association (NOA) has a best practices publication that it updated in 2022 and published with the International Fresh Produce Association. The NOA hosts food safety speakers at every convention, and the association’s food safety committee works on the issue throughout the year. And yet, outbreaks keep happening. It’s not just onions, either. In 2024, cucumbers, carrots, eggs, chocolate bars, walnuts, basil and cheese all were tagged by the FDA as causing illness outbreaks.
Speaking at the NOA Annual Convention in Savannah, Georgia, in December, Natalie Dyenson with the International Fresh Produce Association shared some tips on dealing with outbreaks and the investigations that come with them. As a microbiologist, epidemiologist and someone who has dealt with food pathogen outbreaks herself, she has unique insight into how to improve the process before, during and after outbreaks.
detection
While it seems that there have been more food safety outbreaks recently, the reality is that regulatory agencies are getting better at finding them. This is because there are better DNA techniques now and a new tool called BioFire, which allows doctors to identify pathogens in one hour, right in their offices. Dyenson likened today’s tech to looking at Saturn with a home telescope versus
The $2 million Bland Farms packing line was paid off in a year and a half due to increased efficiency and more accurate weighing.
Delbert Bland with Bland Farms (left) is a natural tour guide with engaging stories.
viewing the planet with the Webb Space Telescope.
When the FDA conducts an investigation after an outbreak, it typically does not find an isolate with an exact match to the outbreak strain. But Dyenson said that doesn’t mean the outbreak didn’t happen.
It can take weeks from the time someone gets sick to the time the FDA names the outbreak culprit. By that time, the product in question has made its way through the system and the FDA is lucky to find anything left to test.
Before and after
Dyenson said it may not seem like it, but the onion industry has a lot of power to control its own destiny and make changes in the system. Before and after a food safety event, make sure to open a dialogue with others in the industry, as well as regulators and public health officials.
“The more we can teach them about what we do and how we do it when we’re not in the middle of a crisis, the better they’re going to be and asking the right questions when we are,” she said.
Establishing relationships in “peace time” helps build trust with officials. By doing this, you are demonstrating that you are trying and want to do the right thing. Educating regulators and policymakers is also key to help them better understand the industry.
One of the most important steps for the industry in controlling its own narrative is to “live” best practices and make sure they are implemented throughout your operation.
Be transparent
Your lawyers may disagree, but Dyenson advises that if the FDA does come knocking, transparency is key and it’s essential to share information and data. Commit to the investigation and be all in. If agents think you are trying to hide something or be evasive, expect them to dig deeper. Conversely, by putting all your cards on the table, they may think there is nothing to find, she said. Whether or not investigators find a smoking gun, it helps to acknowledge that an issue exists.
USDA inspector Donna Taylor (right) checks all containers of Peruvian onions arriving at G&R Farms.
Peruvian onions arrive and get quality checked at G&R Farms before repacking.
The control room is the nerve center for the Elisam packing line at G&R Farms.
From left, Marsha Pozza with Volm, NOA president Jared Gutierrez and Wayne DeCou with Volm enjoy amazing weather in Georgia.
From left, Kris Kido with Top Air, Chris Woo with Owyhee Produce, Will Beckwith with Beckwith Produce and Duane Kido with Top Air share a laugh at Stanley Lodge.
Fox Solutions Newtec equipment is used on the line at G&R Farms.
From left, Robin Vculek with Four Star Ag, Natalie Dyenson with the International Fresh Produce Association and Traci Jensen with River Point Farms pose in front of Stanley Lake.
From left, Barry Vculek with Four Star Ag, Robert Dasher with G&R Farms and Rene-Didier Emch with Enza Zaden visit during the field day at G&R Farms.
NOA executive vice president Greg Yielding (left) addresses diners at the banquet.
NOA members attend an evening event at Stanley Lodge, owned by the Stanley family of onion growers. The lodge offers hunting and fishing and hosts events. Check out www.stanleytraditions.com for more information.
Mariana Aguiar (left) and Gabriela Sandoval with AG Food Safety Solutions enjoy a night at Stanley Lodge.
Rhonda Rietveld with Rietveld Equipment and Doug Stanley and Heidi Conley from Harris Fresh pose in Lyons, Ga.
Dyenson calls data “the new currency” and says it should be carefully collected, cataloged and analyzed. Don’t just document samples, but look at them over time, and it may tell you a different story than the readings you just took. If you do have a situation, you can go back through previous data and it may help isolate a problem.
2025 nOa agenda
Dyenson recommends educating regulators about the onion industry, and the NOA does just that by making a lobbying trip to Washington D.C. every year. The trip is usually in February, but has moved to late March this year to allow the newly elected administration and lawmakers time to get their feet under them.
The NOA encourages all who are interested to make the trip. Representation from as many states as possible is important because lawmakers naturally listen more to those who can actually vote for them. Since the NOA has no permanent lobbyists on Capitol Hill, those on the D.C. trip become lobbyists and are the ones to speak to Congress members and their staff.
“We are the voices for the industry, so it’s really important what we do there,” said Tyler Wagstaff, co-chair of the NOA legislative committee.
Hot topics on the agenda include more grower-friendly H-2A rules and wage levels, ever-present food safety issues, quicker chemical approvals and making sure imported onions are being inspected.
NOA executive vice president Greg Yielding said the group will be talking with the Department of Health and Human Services, which is over FDA. Dealing with FDA in the past has been frustrating and the NOA has found it difficult to get answers. Yielding is expecting the new administration to be more favorable to producers and the industry.
Anyone wanting to take part in the D.C. trip should contact the NOA office at gyielding@onions-usa.org.
Editor’s note: See more pictures at OnionWorld.net/noa-annualconvention-2025/
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Product testing Research Shows Benefits of Biostimulants May Vary by Variety
By Prakriti Nepal, Youping Sun and Milena Oliveira, Department of Plants, Soils and Climate, Utah State University
The use of plant biostimulants is showing some promise as a potential means of helping onion crops thrive despite certain environmental challenges, according to new research at Utah State University.
Utah, the second driest state in the U.S., faces significant challenges in agricultural production due to its arid climate and unpredictable precipitation patterns. With approximately 95 percent of Utah’s water supply coming from mountain snowpack, the state’s agricultural sector is particularly vulnerable to drought conditions and climate variability.
Onions, cultivated on 1,600-1,800 acres in northern Utah, are especially sensitive to these environmental pressures. The crop’s shallow root system necessitates precise irrigation management for its optimal growth and development. Water stress during critical growth stages, particularly bulb formation, can significantly reduce onion yield and marketable quality.
Nitrogen management further complicates onion cultivation in Utah. While nitrogen is essential for plant growth, its excessive use can lead to delayed maturity and poor storage quality as well as environmental concerns such as nitrate leaching. Conversely, insufficient nitrogen limits growth and yield potential.
To address these challenges, there is a need for innovative approaches to onion cultivation in Utah that can address water scarcity, improve irrigation efficiency, and optimize nutrient management while maintaining or improving crop yields and quality. One promising approach is the
use of plant biostimulants, natural or microbial products designed to enhance plant health and stress resilience. Humic substances, bacterial inoculants and other biostimulants have shown potential to improve water and nutrient use efficiency, enhance root development, and mitigate the effects of drought and nutrient limitations.
research results
Research conducted at Utah State University investigated the effects of plant biostimulants on onion growth and production under varying environmental conditions. Field experiments began with careful soil preparation to ensure optimal planting conditions. Raised beds were formed and seeding was
performed using a precision planter configured to plant two double rows spaced 3 inches apart, with 12 inches between the beds. The study began with greenhouse experiments testing seven biostimulants on Vaquero onion seeds, with Huma Pro 16 (Huma), a humic acid-based biostimulant, and Spectrum DS (Tainio Biologicals Inc.), a bacteriabased biostimulant, identifying as the most effective biostimulants in enhancing seedling growth. The subsequent field trials focused on four onion cultivars (Vaquero, Marenge, Bridewhite and Walla Walla) to evaluate the effects of biostimulants on onion growth and production. Bulbs were harvested in September, following standard farming practices typically used by growers in
Utah State University graduate student Prakriti Nepal measures plant height and bulb diameter in a field trial at USU in July 2023.
*marketable includes medium, jumbo and colossal bulbs
the region. The results were evaluated based on marketable yield (bulbs with a diameter of 2.25 inches or larger) and non-marketable yield (bulbs smaller than 2.25 inches in diameter).
Table 1 shows the effects of two types of biostimulants (Huma Pro 16 and Spectrum DS) plus a control (no biostimulant) on the four onion cultivars’ bulb productivity. Vaquero responded positively to Huma Pro 16, with marketable yields of 65,026 lbs./acre compared to 58,684 lbs./acre without the application of a biostimulant (control). Similarly, the non-marketable yield dropped from 423 lbs./acre (control) to 145 lbs./acre with the addition of Huma Pro 16. For Marenge, the control produced 43,410 lbs./acre of marketable onions, which was higher compared to the two biostimulant treatments. However, the addition of Spectrum DS showed promise by reducing nonmarketable yield to 55 lbs./acre. For Bridewhite onions, marketable yield reached 46,524 lbs./acre under control conditions, while Huma Pro 16 and Spectrum DS produced only 290 lbs./ acre and 375 lbs./acre of non-marketable onions, respectively. Walla Walla onions demonstrated a positive response with the application of Huma Pro 16 with a marketable yield of 40,116 lbs./acre while reducing non-marketable yield to only 42 lbs./acre. Similarly, only 64 lbs./ acre of non-marketable onions were produced when Walla Walla onions were
treated with Spectrum DS, compared to 1,368 lbs./acre without any biostimulant treatment (control).
The results underline the importance of using specific treatments for specific onion cultivars. Biostimulants like Huma Pro 16 and Spectrum DS can provide benefits, but their effectiveness varies depending on the variety, making it essential for farmers to choose the right approach for their specific crop.
In addition to biostimulant treatments, this study also evaluated onions under different irrigation and nitrogen levels: standard irrigation (100 percent evapotranspiration (ET)) versus deficit irrigation (75 percent ET) and standard nitrogen (150 lbs./acre) versus deficit nitrogen (100 lbs./acre). Although these trial components are not covered here, they provide insights into how water and nitrogen availability may influence
onion growth and yield. More detailed information on the interactions of biostimulants and management practices will be reported at a later date.
Authors’ note: The project was funded by the USDA Agricultural Marketing Service Specialty Crop Multi-State Program in an agreement with Texas Department of Agriculture (TDA) and Texas A&M. The TDA and USDA agreement number is AM21SCMPTX1003, and the agreement number between TDA and A&M is TXSCM-21-05.
For more information, email Milena Oliveira at milena.oliveira@usu.edu.
Q&a: Ecorobotix ara Ultra-high Precision sprayer
We have to admit, we’re a little obsessed with this AI-powered sprayer. As the agricultural labor pool shrinks, more farms will be incorporating this type of precision and even autonomous ag technology. With this in mind, we interviewed Jose Marchetti, the business development director for Ecorobotix, for more details about the company’s ARA sprayer.
Tell us what the ARA is and what it does.
ARA is an ultra-high precision spraying machine for vegetable crops, meadows and lawns. We started commercializing it five years ago in Europe. The company was founded in 2014, officially.
Though new to the U.S., there are close to 300 machines deployed in European countries through a dealer network and even some in Eastern European countries. Only 12-15 months ago, we started developing the Americas, both Canada and the U.S., with great success.
And here we are now after those first 12-15 months with a team in place in the U.S., registered in the U.S. with offices and a warehouse in Pasco, Washington. We’re very excited because our first users are very happy. Some customers are already booking their second or more units for next year.
Let’s discuss the main benefits of the ARA. The first is labor reduction.
So the labor reduction comes with all the times that the farmer can go into the crop with treatments, with certain products and at certain stages where usually, normally, they are not able to do so. With this ability of doing spot spraying and being able to spray either the correct dosage to control the weeds or some other options that we open the doors to, they can really clean up the fields in a way that never happened before. So they are seeing reductions from 30 percent of manual labor.
What about yield? You’re claiming some yield increases, right?
Yes, the second big benefit that we bring to the fields is increasing yield with also the possibility to harvest earlier. And why this happens is because spot spraying is helping the crops to grow healthier and at the normal rate of growth. We know that some of the selective herbicides that we are using on the fields are harming the crops and are slowing down the rate of growth that they have. So by using the spot spray machine, it grows healthier at the right rate. Then you have higher yields and also a harvest that is happening one or two weeks earlier than when you use a broadcast sprayer. You are cutting down the effects of phytotoxicity on the crop that some of the selective herbicides are doing on onion fields. So this is a very big benefit. You know, agriculture is a business of marginal returns. So when you can get 3, 5 or 7 percent extra yield,
José Marchetti, business development director for Ecorobotix, lists the benefits of the company’s ARA sprayer before a demonstration at the
National Onion Association Annual Convention field day.
the impact on the net margin is much higher.
So if I understand you correctly about that, with spot spraying, because of the ARA’s AI camera technology, you’re identifying weeds and the sprayer is turning on whatever nozzle it needs to just get that weed. So there’s no overspray that might be slowing down the growth of the onion plant where it has to recover a bit. And so without that recovery time, that’s where you’re getting extra yield?
Exactly – faster yields and better yields, but also earlier yields. We are running on the fields at 4.5 miles per hour at pretty decent and fast speed with a 20-foot machine with 156 nozzles, 1.5 inches from each other, opening and closing only when it’s necessary to spray the target that the farmer wants. So what we are doing is taking pictures of the field, identifying every plant, differentiating what is the crop, what is the weed. And depending on the treatment, we target either the crop for a fungicide or any crop protection treatment you want to do –even liquid fertilizer – or target only the weed to do weed control.
That segues nicely into the next benefit that I wanted to talk about, and that was lowering the cost of inputs, less inputs because now instead of spraying a larger area, you’re just spraying precisely.
Absolutely. In cases that you want to apply herbicides to kill weeds or if you are applying a fungicide to protect the crop from some disease, you are saving a lot of money. And depending on the stage of the crop and the weed infestation, those savings can be up to 95 percent. On average, when you use it in the whole cycle of the crop, it’s realistic to think that you are going to get around a 75 percent savings in all the inputs that you are applying on that field. It’s a very versatile machine.
We talked about yield increase and about big savings on inputs. So those heavy benefits together are really impacting the economics and giving us a return on investment that is very fast. It’s happening quick.
So I know you can’t specifically say how quickly because every operation is going to be different depending on acreage and what they’re spraying and whatever, but give us some examples.
We have different customers that are telling us with the savings that we have made plus the increasing yield, we are returning the money spent in one season. And, with only 200 to 300 acres of onions, you get the money back. You add, let’s say, 70 percent savings in
phytosanitary products, a little increase in yield (it could be up to 15 percent extra), plus the reduction of manual labor. I’m sure the farmers are doing the math in their heads, and they understand better than anyone that those three benefits are adding a lot of money.
Editor’s note: This article is adapted from the Onion Podcast, edited for brevity and clarity. To listen to the entire interview, visit TheOnionPodcast.com.
We take perfect care of your onions.
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Crop Protection Essentials Buyers' Guide
Fungicides, Herbicides
Since 1962, beginning as a crop consultancy, Gowan Company has been rooted in agriculture, providing trusted expertise and innovative solutions for growers. This family-owned, American business works to understand growers’ challenges and is committed to delivering products and services that maximize yield and quality. Gowan provides solutions for the unique needs of onion producers.
Gowan USA’s dedicated sales representatives and development teams regularly work with onion growers and researchers to ensure that each product performs optimally in the field. Gowan offers Gavel, Reason and Zing! fungicides, as well as Prefar 4-E, Sonalan HFP and Treflan HFP herbicides.
Biomin
Biomin is a line of fully chelated plant nutrients resulting from the chelation of mineral nutrients with amino acids. These chelates protect the nutrient from combining with other elements or losing nutrient value for absorption.
JH Biotech’s Biomin chelated line is OMRI, CDFA and WSDA organic certified and is compatible with humic and fulvic acid products. Without using harsh chemicals, it provides plants with stable nutrients, balancing mineral deficiencies more quickly than conventional inorganic nutrients. It can be used for soil and foliar applications without compromising environmental quality and safety. Biomin may be applied to all crops and turf. It reduces the effects of saline soils, water deficiency and weather conditions while encouraging increased yield, homogeneous ripening, more flavored and high quality fruit, and greater nutrient absorption.
Torac Insecticide
Torac insecticide controls thrips in onions and other bulb vegetables (Crop Group 3-07). The active ingredient in Torac, tolfenpyrad, works by blocking cellular respiration and is effective on immature and adult stages of thrips. Because Torac causes rapid cessation of feeding in the pest, it also aids in reducing the transmission of Iris yellow spot virus (IYSV).
Torac belongs to the METI (Mitochondrial Electron Transport Inhibitor) class of compounds and is an IRAC Group 21A insecticide. Torac is an excellent rotational option to manage resistance in spray programs for onions. For effective resistance management, Torac should be used in rotation with insecticides of different modes of action.
Sectagon
Onion growers shouldn’t just fumigate their onion fields; they should add a nutritional boost with Sectagon K-54. Sectagon K-54 acts as a fungicide, herbicide and nematicide all in one, with two special nutrients: elemental sulfur and potassium. Growers facing high pH soils or planting sodium-sensitive crops, like onions and potatoes, can benefit from this added nutrition as it lowers soil pH and facilitates more efficient use of micronutrients.
Ethylene Sprout Control & Seed Treatment
Restrain is the manufacturer of a unique generator that converts ethanol into ethylene gas for the control of sprouts in onions and potatoes. Used in over 40 countries, the technology has been proven effective to control sprouts in long-term storages. The process is safe for storage managers, leaves no residue and is an effective sprout control for onions, potatoes, shallots and garlic.
Rango
Combat thrips and protect crops with Rango, a triple-action bio-pesticide. Packed with over 150 bio-actives like azadirachtin, Rango targets thrips, worms, mites and diseases. With no known resistance, and with EPA registration and OMRI approval, this USAformulated solution delivers disease, insect and mite control – all in one jug. Rango offers multiple modes of action: insect growth regulation, anti-feedant, molting disruption and repellency. With a zero-day post-harvest interval and a four-hour re-entry interval, it’s an ideal tank-mix and rotation partner for resistance management.
Crop Protection Essentials Buyers' Guide
Strike
Soil diseases like pink root, Rhizoctonia and Fusarium can severely damage an onion’s root system, reducing both size and yield. Chloropicrin, the active ingredient in Strike soil fumigant, effectively manages these diseases, helping to maximize the crop’s yield potential.
Averland FC
There are new insecticides and control methods that are making thrips control easier. One of these is Averland FC from Vive Crop Protection. This product is a translaminar insecticide/miticide/ nematicide that is perfect for in-season thrips control. Built with Vive’s patented Allosperse Delivery Technology, Averland FC can be seamlessly mixed with liquid fertilizers, foliar feeds, micronutrients and other crop inputs without causing any tank mix issues for an easier and more efficient in-season application. This flexibility allows growers to easily apply liquid fertilizer, knock down weeds and spray for thrips all at the same time with no issues. In any successful thrips control program, a need for multiple modes of action is essential. Adding Averland FC to this rotation will allow for better thrips control while also increasing the efficiency of the application.
Feb. 4
idaho-Malheur County Onion Growers association annual Meeting
Four Rivers Cultural Center, Ontario, Ore. events@amgidaho.com
March 2-6
nOa d.C. Fly-in gyielding@onions-usa.org
July 9-12
nOa summer Convention
Holiday Inn Richland on the River, Richland, Wash. www.onions-usa.org
Nov. 30 - Dec. 5
nOa annual Convention
Royal Sonesta Hotel, Kaua'i, Hawaii www.onions-usa.org
Editor’s note: To have your event listed, please email Denise Keller at editor@columbiamediagroup.com. Please send your information 90 days in advance.
dutch Company debuts Vertical Packaging Machine
JASA, a packaging company headquartered in The Netherlands, has introduced a new vertical packaging system. The NXXT platform is designed for modularity and ease of use. With 52 interchangeable modules, operators can adjust settings for tasks like pouchmaking, perforation or zip sealing. NXXT is built to prioritize speed and precision, minimize downtime and boost productivity with features such as automatic sensor adjustments and real-time monitoring. Visit www.jasapackaging.com.
Exploring nature never stops
TANIA
New short day yellow granex introduction: Strong upright tops with great plant habit. High yielding deeper granex shape, strong root system, and firm bulbs. Pink root and bolting resistance.
“Vidalia Approved Variety ”
RED SENSATION
Early maturing grano red. Strong healthy tops. Pink root resistance. Excellent bulb firmness and color. Uniform round bulbs. Good internal color. Widely adapted across short day growing regions. High percentage single centers.
SWEET TULE (BEJO 369)
Early main season maturing yellow granex variety. Healthy and strong, with upright tops. Petite neck size for rapid field curing. Excellent bulb firmness with attractive appearance and great flavor!
“Vidalia Approved Variety ”
MARAGOGI
Early main season short day yellow onion. Attractive lighter colored skin. Uniform flat round to globe shape. Healthy with disease resistant tops. High percentage single centers.
“Vidalia Approved Variety ”
f Bejo Seeds Inc. (main office) 1972 Silver Spur Pl. Oceano, CA | T: 805- 473-2199 | E: info@bejoseeds.com
f bejoseeds.com
new Guidebooks detail Onion diseases
Vegetables by Bayer has updated disease guides available for several vegetable crops including onions. This free resource is meant to assist growers with disease identification and management by providing descriptions and pictures of the more commonly found crop diseases and disorders worldwide. For each disease and disorder, readers will find the common name, the cause, where it occurs, symptoms, conditions necessary for development and control measures.
The new guides can be downloaded at www. vegetables.bayer.com/us/en-us/resources/diseaseguides.html.
Seedling Onions Need a Hero
When onion seed and seedcorn maggots threaten young crops, our heroes come prepared. FarMore FI500 and Spinosad/Lumiverd
seed treatments provide early season disease and insec t protec tion for young onion crops. S eed D ynamics applies the protec tant to the seeds themselves, through a safe and controlled deliver y. It works at the most critic al time — during germination and seedling emergence — so your seeds c an thrive, while fending o threats of early damage. Get a hero from S eed D ynamics , the S eed Preparation Professionals. Call us at 86 6.321.9747 or choose a dealer listed above. V isit our Website at
