Episode 7 - Herbicide Technologies in Rice Arkansas Row Crops Radio, providing up to date information and timely recommendations on row crop production in Arkansas. Jarrod Hardke: Welcome to Arkansas Row Crops Radio. I'm Jarrod Hardke, Rice Extension Agronomist for the University of Arkansas System Division of Agriculture. Today's episode is about Herbicide Technology in Rice. Primarily, the new Fullpage technology from RiceTec that is being offered and answer a few questions that myself and fellow weed scientists have been receiving about this technology. So out of the gate, some of the first questions and we've released some preliminary cultivar testing result data over the past week or so. Really the first thing to point out is the two Fullpage hybrids that are going to be offered next year, mainly 7321FP and 7521FP, have really shown over the past 2 years to have competitive yield and milling to RiceTecs gemini214 Clearfield and the 7311 Clearfield offerings that they had at that time. And really, they're gonna be just moving forward. One of the greatest things about moving to the Fullpage technology would be a more complete tolerance to the herbicides that we use in these crops. So, at times in the past with 745 and at times with Gemini and 7311 if the weather was very cool, overcast, pretty rainy and we made herbicide advocations with new path, we could at times see some injury. Usually, it didn't amount to anything on the backend but we would have to nurse the crop through some of that intolerance at times and really the Fullpage system is intended to not have any of those issues as the tolerance levels are really tremendous and in line with Clearfield varieties. What we normally expect there is that we just were not seeing any injuries. So, obviously big thing being that they are equally competitive from a yield and milling standpoint, most of their other attributes, height, disease, package, those things are very very similar to the 7311 and Gemini Clearfield. But, a few key differences beyond kind of the tolerance issue, it's important to note that if we are growing Clearfield hybrids or varieties, we are spraying new path and beyond active ingredients imazethapyr and imazamox. In the Fullpage system, we are spraying preface and postscript, these are imazethapyr and imazamox. So, one of the biggest sources of confusion it seems out there to date is that where we may have some issues with ALS resistance, such as our new path and beyond, that we're gonna be able to go in there with Fullpage and have some success. Now, again, there are reasons to be excited, but when you are spraying preface and postscript, if you weren't getting control with new path and beyond in that field, you're not going to get control with preface and postscript. So, we absolutely want to make sure we don't get any confusion on that part that we are gonna go in there and create potentially a further mess in that situation. But again, the positives of being able to go in there with preface and postscripts on these Fullpage hybrids is that we're really gonna be able to get those rates up there to where we wanna be and not be pulling them back trying to avoid injury situations. So, we should see better efficacy, weeds that we can control with imazethapyr and imazamox still. But, it's not going to suddenly control things that we just flat out weren't controlling before running new path and beyond on Clearfield hybrids so we wanna make sure we don't fall into that situation going into 2020. Really beyond that, it's also important to keep in mind that you're also going to have those same rotational restrictions and issues falling behind Fullpage. You're going to have the same plant backs, so the year after you grow Fullpage this coming year, you're not going to be able to immediately go back to a non Fullpage or non-Clearfield conventional cultivar of some sort. You're still going to have those same rotational restrictions so were gonna wanna look out for that. At the same time, while not a RiceTec offering, but the Provisia technology currently through horizon ag, obviously another different mode of action, just while we're on the general topic. Very different, there's just a couple of varieties out there right now, we did have the PVL01 now well have the PVL02 that has a better disease package and earlier maturity than the PVL01 so obviously with those really bring that novel trait package that are tolerant to the Provisia herbicide and with that primarily were getting post only control but one of the main reasons to bring it up, you cant follow Fullpage or Clearfied rice with Provisia. You're going to run into injury issues because it's not in any ways tolerant to herbicides that are used in a Clearfield or Fullpage system so were gonna have to watch out for that. However, if we were running Provisia rice in 2019 or 2020, you can follow that with a Fullpage or Clearfield product and be okay because the residual is not there so it can come back in the following year. So ultimately, again, we're still looking at very competitive products on the Fullpage side compared to their Clearfield counterparts. Just wanna be sure that we're looking at really the same modes of action in order to control our weeds and not mistake one for another and continue to rotate and not rely on the same technology and the same field year after year. That's part of where we've got into some trouble in the past so let's try to rotate through these technologies we've got at our disposal, as well as rotate through some other crops, obviously, soybean being the big one. So, if you have any further questions you can certainly consult some of that preliminary performance data that's already been out. More of that data in its complete form will be available around the 1st of December as it is each year to see everything milling and agronomic and yield data. Between now and then if you have any questions don't hesitate to reach out to myself or any of our weed science or other specialists for other topics as we prepare for 2020. And with that, we'll call it a week. Thanks for joining us again on Arkansas Row Crops Radio. Arkansas Row Crops Radio is a production of the University of Arkansas System Division of Agriculture. For more information please contact your local county extension agent or visit uaex.edu