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Thoughts on Rice
This podcast is for growers, PCAs, consultants, and other industry professionals in the California rice industry. We'll primarily be focusing on the Sacramento Valley and Delta Region of California. The UCCE Rice Farm Advisors aim to deliver extension information relating to the California rice industry.
Find out more about UCCE and California rice here!
Thoughts on Rice
New product offerings in the rice market (Pt. 2)
Together, the UCCE Farm Advisors seek to provide relevant, topical research-backed information relating to CA rice production. Sarah Marsh Janish sits down with Kate Walker, a representative from FMC, to discuss some of the latest developments in the rice chemical market.
Mention of an agrichemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu.
The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. The material and information presented here is for general purposes only. The "University of California" name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific organization, product, or service.
UCCE Upcoming Events
- Hedgerows and Soil Assessments Field Day
- Date: April 1st, 12:30 PM
- Location: Corner of Tule Rd & Lodi Rd, Colusa, CA 95932 (39.01286825023778, -121.93150847565158)
- Questions: UCCE Sutter-Yuba office at (530) 822-7515
- 2.5 Soil & Water Management CCA Credits ~ Approved
- UCCE Colusa Centennial Sprint
- Date: April 5th, 2025
- Check-in: 8:30am
- Run Time: 9:00am
- Location: Colusa Sacramento River State Recreation Area, 1 10th Street, Colusa, CA 95932
- Questions: UCCE Colusa office at (530) 459-0570
Other Resources
UC ANR is an equal opportunity provider and employer
Hello and welcome to Thoughts on Rice, a podcast hosted by the University of California Cooperative Extension Rice Advisors. I'm one of your hosts, Sarah Marchionish, and I'm a rice farm advisor for Colusa and Yolo counties.
SPEAKER_00:I'm Whitney from the forest. I'm the Cooperative Extension Rice Advisor for Sutter, Yuba, Placer, and Sacramento counties.
SPEAKER_02:My name is Luis Espino. I'm the Rice Farming Systems Advisor for Butte and Glynn counties. I'm Michelle Leinfelder-Miles. I'm a farm advisor in the Delta region. I work on all sorts of field crops, grains and forages, but one of those is rice. And the counties that I cover are San Joaquin, Sacramento, Yolo Solano, and Contra Costa counties.
SPEAKER_01:Together, the UCCE Rice Farm Advisors seek to provide relevant, topical, research-backed information relating to California rice production. Today we're continuing on from part one of the rice chemical update, talking with some other representatives from the rice chemical industry. As a reminder, mention of an agrochemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu. Today, I have here Kate Walker from FMC. And we're really fortunate to have Kate come and talk to us today because as I understand it, she's got quite a bit of experience in this industry. So Kate, thank you so much for being here today.
SPEAKER_03:Oh, Sarah, thank you so much for having me. It's such a pleasure to talk with you. Yeah, my name is Kate Walker. I'm a tech service manager with FMC. I've lived and worked in California for this is my 15th year. So I've been out here since 2010, covering coastal California and Northern California. So again, just really excited to talk with you today.
SPEAKER_01:Fantastic. We love having people on here who have been kind of rooted, excuse the pun, in the industry for a while now. So really fortunate to have you here. Thank you. Well, let's talk about the products that FMC offers in the rice market. And this, I mean, the established products that are pretty much household names in the industry. Let's talk about those.
SPEAKER_03:Sure, sure. So as far as established products, FMC offers a herbicide Shark H2O. So this product has been on the market for a number of years. It's a very user-friendly product. We have it registered for management of broadleaf weeds in water-seeded rice. So we've got two application timings that we recommend for Shark H2O. For an early application, this is when the rice is about two to three leaf or larger. We recommend a seven and a half ounce per acre rate by air. And this is going to have activity on sedges like umbrella and bulrush. And it's also going to pick up some other broadleaf weeds like arrowhead and duck salad. Later in the season, so when the rice is larger, this is usually after the water has been let out, we have a application up to four ounces by ground. This application is going to have really good tank mix flexibility with other rice herbicides that are on the market. Again, Shark H2O is a broadleaf, so if you need to incorporate grass herbicides, Shark is a great product that will pick up your broadleafs if you're making an application for things like watergrass. Overall, we see Shark as being a very good resistance material. management tool. Per the label, we've got a max of 12 ounces per acre per crop per season with a 60-day PHI. So that's just a quick overview of how to use Shark H2O in rice.
SPEAKER_01:Great. And as I understand it, Shark is pretty unique in that it's a PPO inhibitor. And we've only got two chemicals that use that mode of action in the rice portfolio.
SPEAKER_03:Correct. So it's, again, that makes it a very good resistance management tool to use with some of the other burndown products that maybe have a broader or more selective, you know, mode of action or weed spectrum. And being able to incorporate a PPO just ensures that, you know, the things like Butte and Cliffhanger, those do not develop resistance, which we know is a problem with a lot of our weeds and rice.
SPEAKER_01:Absolutely. Yeah. Thank you for that information on shark. Of course.
SPEAKER_03:Of course. Shark H2O is the only established product we have. But Resistance Management is a great segue to talk about a new product that we have coming to the market, Canale GR. So we have just submitted to both California and to the EPA a product called Canale GR. That is the brand name. The active ingredient name is Dodelex. It is a new mode of action. in HVAC group 28. So there are currently no group 28s that are registered for use. It is a DHO-DH inhibitor herbicide. Now, here's the part where it gets a little bit tricky. The DHO-DH stands for dehydroorotate dehydrogenase inhibition. So that is the mode of action. It is a pre-emergent herbicide that is selective on grass weeds. And it has been showing fantastic efficacy for all of our water grass species and sprangletop. So this is one we are really excited to get to the market because we know that rice growers are struggling with these resistant grasses in their fields.
SPEAKER_01:Absolutely. And I'm so glad you brought this up because I think we've been hearing about this product for a number of years. And selfishly, I'll say I'm really glad that it's known as Kinali. I personally was having a hard time pronouncing I'm going to say it wrong, Dodalex.
SPEAKER_03:Dodalex. You were so very close. Yeah, and Dodalex is a whole lot easier than saying the mode of action and the technical AI name. So I'm with you. I'm very happy that we've got a brand name so we can refer to it as Kinali GR.
SPEAKER_01:And it's I mean, the D-H-O-D-A, I mean, that's a whole new world. We've never seen this before.
SPEAKER_03:Correct. Correct. I think the last new mode of action that we had, and I do not have the slide in front of me, but I believe that the last new mode of action that was introduced into the rice market was somewhere around the 80s. So it's been a while since we've had a new mode of action. herbicide into the market. So yes, we are very excited about that.
SPEAKER_01:And so as far as any preliminary results or tentative use rates, I know it's not currently available, but can you tell me anything about how it's been working in the research trials?
SPEAKER_03:Yeah. So because we have the label submitted to the EPA and it hasn't been approved, we can't share specific use rates yet. But what I can say about the use and the targets So we will have a rate range on the label, which is really nice because that gives our rice growers flexibility to use what rate fits their field and their pressure. It's a pre-emergent herbicide. So that's going to be the key that it needs to be applied prior to the weed germination. So we're going to be looking at early applications around seeding up to about one leaf. It's going to be somewhere in that timing range to just ensure that those grasses like the early water grass, like sprangletop, mimic water grass, basically that the herbicide is there to have activity on those germinating seedlings so that those weeds can't get established. So using it early as a pre-emergent herbicide is where it's going to be positioned.
SPEAKER_01:And is the idea to try and use Kinali GR as a base herbicide for a herbicide treatment program?
SPEAKER_03:Exactly, Sarah. You just nailed it. It's going to be the foundation for a season-long grass management program in water-seasoned rice. So this will give our growers the opportunity to start out clean, and then they'll be able to manage any escapes very easily throughout the season. We've been testing this in both small and some very limited large-scale, because everything is crop-destruct. but we've been doing a ton of replicated plot work and even some one acre type fly-ons. And we've seen just outstanding control of water grass. So it just gives these growers the ability to keep that water grass out of the field. Once the rice gets established, they're just not seeing the overwhelming pressure that they've been seeing, that we're seeing in the untreated plots, for example.
SPEAKER_01:And here's a question I know you guys are getting all the time, but do we have any idea about when it might be available for our California rice growers?
SPEAKER_03:Yeah, so we are... Per the EPA, some feedback we've received from them, FMC anticipates that Canale GR will be commercially available for the 28th season. So that's what we're, we are really hoping for. And that's, that's, again, the feedback that we've been receiving from the EPA. We, FMC is committed to getting this tool to our growers as quickly as possible. So we've been engaged with the Rice Commission, as well as DPR. So our Our plan is commercial availability for 2028. That being said, you know, there's a few years between now and then. So hopefully things stay on track. And of course, we'll keep, you know, our university cooperators, our customers in the market up to date as we progress.
SPEAKER_01:Absolutely. And that's, again, I mean, that's not something that there's a lot of control over on your side. So we'll be waiting. We'll be waiting, I guess. No one's more excited than Fantastic. Well, Kate, thanks for that information. Anything else you'd like to add on the product side? No, I
SPEAKER_03:think that's pretty much everything I can cover. It's just a baseline of the fact that it's a new mode of action. It's going to be very user-friendly and definitely a market need with the resistant grass issues we have.
SPEAKER_01:Well, with that, I think we're going to wrap up. Is there any upcoming events or contact information you'd like to share with our listeners? Yeah,
SPEAKER_03:so we are continuing to work with University of California. So hopefully we'll have some information that we can share at rice field days this summer. As we get closer to registration, I have no doubt that FMC will be hosting more meetings and more events to educate growers and educate our customers and get the market ready. Great, Kate. Thank you so much. All right. Of course. Thank you, Sarah.
SPEAKER_01:Now let's move on to some upcoming events. The Hedgerows and Rice Field Day will take place on Tuesday, April 1st at 1230 p.m. The location for that will be the corner of Tooley Road and Lodi Road, just southwest of Grimes, and we'll be able to offer 2.5 CCA credits for soil and water management. Again, that's Tuesday, April 1st at 1230 p.m., the Hedgerows and Rice Field Day. Our next Next upcoming event will be the UCCE Colusa Centennial Sprint to celebrate 100 years in office. That will be Saturday, April 5th at 110th Street in Colusa at the Colusa Sacramento River State Recreation Area. Check-in will start at 8.30am and the run will start at 9am. There is a$30 registration fee per person, which will include the shirt and fee, and you'll be able to find the registration on the UCCE Colusa website. Again, that's the UCCE Colusa Centennial Sprint, Saturday, April 5th. We'd also like to announce a save the date for the rice production workshop, and that date will be July 23rd and the 24th. That's a two-day workshop to go over the specifics of rice production, and we have this meeting every two years. Again, that's a save the date, July 23rd and the 24th. For more information about these and upcoming events, feel free to check out our resources, which include the UC Rice blog and the UC Agronomy Rice website. In terms of other resources you might like to take advantage of, you can also look at our newsletters, which include Rice Briefs, which covers Colussiolo, Rice Notes, which covers Yuba Sutter, Rice Leaf, which covers Butan Glen, and Field Notes, which covers rice in the Delta Reef. region. Thanks for listening to Thoughts on Rice, a University of California Cooperative Extension podcast from the University of California Agriculture and Natural Resources. You can find out more about this podcast on our website, thoughtsonrice.buzzsprout.com. We'd love to hear from you, whether it's from using our text link in the show notes, a survey submission in our feedback form, also in the show notes, or in a comment or rating on your podcast streaming service choice. We're also experimenting with polls on Spotify, so if you're listening on Spotify, you might have an option to answer some of those questions, and we might be able to talk about that on the air. You can also email us with any comments, questions, or concerns at thoughtsonrice at ucdavis.edu. Spring has sprung for us here in the And remember, like the growers like to say, have a rice life. Mention of an agrochemical does not constitute a recommendation, merely the sharing of research findings. Always follow the label. The label is the law. Find out more at ipm.ucanr.edu. The views, thoughts, and opinions expressed are the speaker's own and do not represent the views, thoughts, and opinions of the University of California. Thank you. Thank you. Thank you.
