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Hosts Anthony Hanson, Dave Nicholai, and Bill Hutchison at the University of Minnesota alert growers, ag professionals and educators about emerging pest concerns with Minnesota Field Crops, including corn, soybean, small grains and alfalfa. They offer useful, research-based pest management solutions.
Dr. Anthony Hanson, IPM Educator - Field Crops
Dr. Bill Hutchison, Coordinator of the MN IPM Program
Dave Nicolai, Crops Extension Educator & Coordinator of the Extension Institute for Ag Professionals
Welcome to the University of Minnesota's IPM podcast for field crops. I'm your host, Anthony Hanson, and this month we'll be having a series of episodes come to you from the Saint Paul campus where my counterpart, Dave Nicolai, is interviewing a few folks, looking more on the agronomy side of things, but then also how that relates to our pest management. Especially today, there is a higher risk potentially of seedling diseases coming up, so I wanted to give a bit of a focus on that. So with that, I'll hand it off to Dave.
Dave Nicolai:Good day, this is the agronomy update from the University of Minnesota Extension. I'm your host Dave Nicolai, Extension educator in crops. Today is 05/01/2023 and we thought we'd start out a little bit by reviewing the crop condition report that was just published as of the ending of the week for 04/30/2023. In Minnesota, we had an opportunity to plant a little bit. Not a lot but we had an opportunity to plant a little bit.
Dave Nicolai:The report indicates that corn planting reached 5%, soybean planting was recorded as 1%. Now compared to last year, corn planting at this point in time, the report was actually just zero and that was it. However, five year average for this point in time was 23% in terms of total corn planted with that. The other thing I want to mention this morning and that today is to talk a little bit about our subsoil moisture. Our subsoil report was rated as a 66% adequate with 18% surplus in terms of the actual moisture percentages with that.
Dave Nicolai:So that's a little bit in terms of the crop report which is just hot off the press for the day May 1. We'd like to represent our opportunity for our guests on our podcast here today. Of course Doctor. Seth Nave who has been with us last week and is operating our board in terms of information and recording. Our special guest though I'd like to turn it over to is Doctor.
Dave Nicolai:Dean Melvik from the University of Minnesota Extension Plant Pathology. And Dean maybe you'd like to introduce yourself a little bit, tell the folks, what your primary responsibilities are here in Minnesota.
Dean Malvick:Hey, greetings everyone. So I am a plant pathologist with the University of Minnesota Extension, and I have responsibilities both in Extension and research focused on diseases of corn and soybean across the state of Minnesota.
Dave Nicolai:And you've been here for quite a few years, Dean. In terms of that, by understanding, you are originally a a Minnesota native. Is that correct?
Dean Malvick:That that I am. Although, before I came here to the University of Minnesota, I was at the University of Illinois in Champaign Urbana for a number of years where I learned a lot about corn and soybean disease issues there.
Dave Nicolai:Excellent, excellent. Well we would start out a little bit of talking about of course weather here and that's always on everybody's tip of their mind in situations particularly this year. You know, we had a what I would call a more than cold April, know, and what people are used to in terms of that and the temperature although that's just happened before obviously. And we've had some wet situations. We had a little bit of a dry spell there, some warm temperatures a couple of days by eighties.
Dave Nicolai:But you know nonetheless, you know we're back down again here in terms of the temperatures but the forecast at least for this next week is looking like we will have some warmer temperatures ramping back up here fifty's, sixty's maybe even touching seventy's before we get might get a touch of rain this coming weekend. And a lot of this plays into when we think about plant diseases, planting corn, planting soybeans in a different situations and realms. We have to keep in mind that for disease to develop or to be concerned about it, there's certain things that have to come together. And that's usually in terms of disease triangle. You wanna give us just a little bit of a brief update when we talk about that.
Dave Nicolai:What does that really mean for producers and consultants?
Dean Malvick:Yeah, that's a good point, Dave. Know, we've talked about that for years but disease doesn't just always occur. In fact, it's still the exception. Normally, we get healthy crops, healthy stands. When we don't is when we have these three items that come together, as you mentioned, that has been often referred to as a disease triangle, and those are a susceptible plant, susceptible variety, hybrid, the presence of a pathogen, of which many pathogens are widespread in soils across the state.
Dean Malvick:And the third thing is the conducive environment, and that may be cool, wet conditions for some, seedling and seed pathogens or it may be warm conditions for others. So those we need to think about how those conditions come together to create the conducive conditions for each disease that we're concerned about.
Dave Nicolai:And right now obviously we're having you know cool soil temperatures and we'll talk about it a little bit later here today but some of those diseases are going to be more prevalent under cooler conditions as opposed to warmer conditions with that. And in terms of planting here in Minnesota, we were visiting a little bit before we started the podcast today that we really have almost like three scenarios. We have crops that were planted quite a bit earlier in Southeastern Minnesota. Those are gonna be emerging or close to emerging. Then we have the southern and the central part of the state where corn and soybeans are just going to be actually be planted hopefully this coming week.
Dave Nicolai:And then we of course we have Northwestern Minnesota which had been quite a bit colder. Snow not too long ago on the ground and those types of things and situations with that. Let's talk a little bit about some of those crops that maybe were planted you know here a while ago in Southeast Minnesota and coming up in there in that situation. Should we think about scouting there and looking at crop stands and Seth you can come in here too and talk a little bit about that. What are some of the things that those growers need to be aware of if they're out there taking a look at some of these fields in terms of stand and also maybe some of the things, what's the difference between a non infectious cause of these symptoms that they might be seeing versus something that's infectious?
Dave Nicolai:Maybe So you can touch on some of those as well.
Dean Malvick:Yeah. So general point here is proper diagnosis, understanding what the real problem is. It's easy to overgeneralize saying, you know, XY or Z disease can be occurring widespread, but the fact is very few occur widely in fields in any particular year. You know, there are certain diseases that are favored by wet cold conditions like Pythium, which can often it really attacks the seed and the very early emerging seedlings by its greatest extent, although it can cause post emergence damping off. And another one is Fusarium that can infect early and cause various levels of damage.
Dean Malvick:Now another issue to think about here, there's it's not simply Pythium versus Fusarium. Each of these pathogens have many different types within them. We probably have 10 or 15 or more species of Pythium and Fusarium in Minnesota soils that are out there waiting for our crops to attack them. And they may be subtle infection, they may be severe infection, and they also are favored by different environmental conditions. So it actually gets quite complex.
Dean Malvick:But those are the two categories, groups of pathogens, the Fusaria Pythium, that are most prone to infection when we have cooler soil conditions.
Dave Nicolai:Would we see both of those in corn or more in soybeans in Minnesota?
Dean Malvick:See both of them in both crops, although there may be different species that infect corn and soybean.
Dave Nicolai:So let's just talk about one at a time here. Let's talk about Pythium and situations with that. What type of environment and what are some of the symptomology that we should be aware of when we make a visit to the field?
Dean Malvick:Yeah. So Pythium tends to attack again under cool wet conditions. Although again, there are some species that prefer warmer conditions, but just thinking about the more prevalent cool and wet favorable conditions for Pythium. That, in our experience, primarily attacks the seeds when they are preemergence. Oftentimes, when just the radical is popping out from the seed or maybe the the hypo it's just swelling.
Dean Malvick:So they tend to attack very early, although it can attack somewhat later occasionally and cause some root pruning.
Dave Nicolai:Will these seeds actually emerge from, Epithium
Dean Malvick:They or won't even emerge. It might just kill them right in the ground. Okay. Sometimes they'll emerge, but often it will kill them sooner than that.
Dave Nicolai:Well, let's switch over maybe. Can we talk a little bit about Fusarium?
Dean Malvick:Fusarium. Yes. Yes. Again, there's a range of different species there. They can do the same thing.
Dean Malvick:They can cause this cause preemergence death or or damping off. Or they can infect as in the case of sudden death syndrome. Now that's not a seedling disease, but it infects early, Fusarium regilliforme, and we don't see the SDS until much later. But nonetheless it starts out really infecting very early in the season.
Dave Nicolai:Dean, in terms of field observations, what can a grower do or what timing should a grower be mindful of if they're going to visit a field, do some early season scouting to try to make some determination of if they have a particular type of seedling diseases might be Pythium, Fusarium, might be something else. What are some general guidelines that you would recommend that growers keep in mind when they do some of this early season scouting?
Dean Malvick:There are. It's very rare that there's only one thing happening in the field at this stage or later in the summer. But in a very general way, seedling diseases, one thing they do is they cause distinct coloration discoloration or soft rotting of, say, the radical, the root system or the emerging seed seedling. And so that's one thing we can look at. And there are subtle differences between Pythium and Fusarium, but the reality is, to see those subtle differences, have to get the seedlings at the right time.
Dean Malvick:And when they're young and the soil is wet, they tend to degrade pretty quickly. But they're hard to diagnose in the field. And so we do have an excellent plant disease clinic here at the University of Minnesota that can really help with their expertise to diagnose these and other problems later in the season. But the seedling stages are a real challenge to diagnose properly. But there are really two important reasons why we should try to do that even though it's difficult.
Dean Malvick:One is to know what kinds of problems are particular fields prone to. And so we can tailor any sort of management or seed treatment practices toward those in the future. And the second point is, if we're using seed treatments, and of course most acres do have them, are they effective against the problems prevalent in that field that can help us determine which seed treatments might work best in the future as well.
Dave Nicolai:So I imagine that it's important obviously to know the field history, your rotation, but also the topography. Some areas in the field obviously are going to be more prone to being wetter longer for what for any number of reasons with that. Anything that you would do in terms of scouting or observing in a field situation if you were at least trying to ascertain whether or not disease is present?
Dean Malvick:You know, obviously it depends how much it's been raining. Because if it's raining a lot and the soil's been staying wet, it doesn't matter where in the field really are sometimes. Some of these problems, certainly in say Pythium, are tend to be more prevalent in the lower parts of fields.
Dave Nicolai:Okay.
Speaker 4:So I just want to jump in here
Dave Nicolai:Go ahead.
Speaker 4:Because I think the issue that we're that we may have been facing the last few days to a couple weeks is we had some corn that was planted, some very small amount, but there was some corn planted back in the April. So, you know, that corn was planted with some 80 degree temperatures. Soils were really nice, but then it got really cold. So what what happens to corn, corn in in these very, very cold soils because they were, you know, we were in the we had a lot of 30 degree temperatures and so soils were kind of in the forties for about a week. How does that corn how would that corn look after being you know, is it is it basically like being in a refrigerator and we've taken it out and it's it's actually not so bad?
Speaker 4:Or is this just a really really bad thing to do here? So just kinda wonder how that how that really cold temperatures that we had might affect the corn.
Dave Nicolai:You know that that's a question I think to some extent, you know, based upon obviously, you know, the field conditions in terms of where it was at in situations with that. I think one thing to, I wanted to tag on to that is what about the corn that was planted but not yet, you know emerged. And I think that's probably one of the questions in terms of the you know seed treatments. You spent time in Illinois and you've seen this over the years. On average, we think about you know from a fungicide standpoint whether it's obviously corn you know maybe in soybeans.
Dave Nicolai:But how long can we count on the viability of that fungicide seed treatment to be effective? You know, temperatures and in colder temperatures. What's been your experience?
Dean Malvick:You know, the thing is it's in all honesty as we all know the number of active ingredients being put on soybean and corn seed has been increasing dramatically. And those different products have different properties. You know, the answer was much simpler fifteen years ago when we only had a few products that were widely used. Now we have a lot more, and they have different levels of systemicity or ability to enter the plant to become systemic. Fifteen, twenty years ago we would say that most seed treatments probably didn't have a lot of effect after two to three weeks after planting.
Dean Malvick:And that's still true for some of them. Some of them probably have a longer activity. Although I can't get into all the specifics of all the different products, but some of them enter the plant and become systemic they're inside. A lot of them still don't, but some of them are that have property.
Dave Nicolai:Well it seems to me that you know based upon our observations particularly if we even go back to last year and we were in the cold temperatures and so forth and the emergence came later that we were able to follow through and still have a very good crop And in a lot of cases perhaps and even in a wet year of you know, two to three weeks later which is really extreme in terms of being in the ground in that regard even in our colder temperature Seth with that. But I know if you would agree that you know we could still look at that. I think our forecast this coming week looks like we're going to have warmer temperatures obviously more warmer air temperatures. The soil will lag behind that will start to warm up there. We're gonna have rain.
Dave Nicolai:I mean we're always gonna have rain at some point in time and you know it sounds like this coming weekend we will have some showers again. But you know none nonetheless we have that you know that protection. I think maybe Seth your question is what about the corn that might be just already merged or coming up. Yeah, through that and that's a little bit easier to ascertain whether or not that's been a situation with that. I think if there's any a few beans that were planted, they would be basically at a point where just we were talking before the seeds swollen up.
Speaker 4:Yeah and actually I asked a kind of a difficult question just because I thought it was interesting that we had a year where we planted where we did have really extended period of quite cold conditions that we don't we don't normally get this kind of thing. We tend to be on a general incline in terms of temperature patterns. So as the soils warm up, then we're generally in pretty good shape. We we tend to have some cold snaps come along. But this year in particular when we had just the soil just had barely warmed up on top especially because we had those really hot days.
Speaker 4:I think we had deeper soil was was cooler at that time. It was still calendar date was early. So I just think we have a little bit different situation this year and I think some of that corn took a long time to come out and I haven't heard necessarily how it is so it's it's probably just more of a question for people to wonder about as well out there.
Dave Nicolai:Well certainly with with cold temperatures we're worried about inhibition and chilling, imbibing and that type of thing. Hopefully we might turn the corner on that. I'm gonna ask you both a hard question maybe on on the soybeans but since we are gonna be warming up and we are hopefully gonna have warmer soil temperatures, do you see a good need here for those soybean seed treatments from a fungicide standpoint going forward here in Minnesota? What's been your experience? We know there's some opinions from across the river in Wisconsin but in terms of that are we going to be beneficial and I think we have to think about it.
Dave Nicolai:We're not necessarily gonna get an increase but more from protection standpoint. So maybe we talk a little bit about treated or untreated seed going forward here now past May 1.
Dean Malvick:Yeah, I'll make a few comments. You know there's it's hard to generalize, again, every field is different in terms of the environment and in terms of the pathogens that are in those fields. And seed treatments vary widely in terms of their activity. The reality is, most fields, disease is still the exception. We can get a very good stand much of the time without having a really broad spectrum seed treatment package.
Dean Malvick:Although sometimes we'll get to conditions where they really do provide a benefit. So it's hard to predict exactly what the situation will be and that's part of the equation I think for a lot of folks in choosing a seed treatment. There's that risk aversion, that protection category.
Dave Nicolai:So you would really look at individual field situations, drainage patterns, etc?
Dean Malvick:Yes. That along with what do we know about what have been the prevalent pathogens in a field that we can potentially control with the seed treatment. Again, we have a broad spectrum of seed treatments that have activity against different pathogens. The companies that produce these know where the limitation were of the products that were used widely fifteen years ago. So many of them developed other products that hit the weak point.
Dean Malvick:So our complexity of seed treatments is increasing as well as our spectrum of high activity. We go to a broad spectrum product with many different seed treatment active ingredients on it. So there's no simple answer. But the key thing is to have we know fields that are particularly prone and we know which seed treatments have greatest activity against those problems, you know our odds of having a really good return on those products is highest.
Speaker 4:Yeah and Dean brings up a really really important point here is that the activity of these products and the biology and the the honestly, the economic viability or the economic return for farmers is based on positioning the right product for the right, you know, risk in individual fields. And so Dean's absolutely right. I think the way to use these products is you position them in fields for soybean, for instance, position them in fields where there's been a known problem of disease. And ideally we actually have the disease screened and so you know exactly what disease it was. And so you can have a product, a seed treatment, a fungicide that works on that specific disease.
Speaker 4:Then you that's a position where the farmer should feel good about that investment because because you're targeting a specific known issue with a product that has efficacy over it. Unfortunately, the problem, you know, that I see among most farmers is that they're using these things completely prophylactically. And yes, it makes them feel a little bit better and maybe helps them sleep a little bit better. But without much knowledge of whether individual fields may differ in terms of disease, and certainly very few farmers I talk to really know what diseases are present in fields. And difficult.
Speaker 4:I mean, your plant disease clinic gets lots of samples in, and it's not always a conclusive answer for farmers. And those are among the samples that come in. And we know that most farmers aren't even sending samples in. So, you know, I don't it's not much of a question or maybe more of rant, I think. But I think you were really onto something in terms of helping position these products.
Speaker 4:And that's really the best way, I think, to use these seed treatments on soybean specifically.
Dave Nicolai:Any other comments, Dean?
Dean Malvick:Yeah, that's a good point. You know, whatever we can do, you know, where we have say drainage, you know, certainly that can improve the environment in some fields and make the risk of seedling diseases lower. And then there is some variety differences as well. Even if there isn't a high level of resistance, certainly for a lot of diseases there are different levels of susceptibility.
Dave Nicolai:And we're talking about soybean syrup.
Dean Malvick:Yeah, soybean and corn, both. So I'll leave it at that.
Speaker 4:You know I would even you know go on to charge farmers with you know a good starting point is if they're a farmer that have used seed treatments you know on all their acres of all their soybeans maybe try to think of a situation where they can target some of those. So maybe they're early planted, maybe they're poorly drained fields, maybe some varieties that are more susceptible. And maybe they can next year they could just purchase half of their seed seed treated or something like that and then try to try to try to best deploy those treatments onto acres that are gonna be more likely to have a response or more likely to protect their investment on those. And that might be an easy way to help farmers kind of move that direction is maybe try to split up their sales or their purchases by some treated and some not.
Dave Nicolai:If you choose not to use a soybean seed treatment, say for example, is there anything else from an agronomic or cultural situation that we can do here in Minnesota?
Dean Malvick:Well on a general rule if we can increase soil drainage, drying rates, allow it to warm up faster, it can eliminate some of the or reduce some of the problems that we've talked about.
Dave Nicolai:Well you know obviously, you know, that in in planting considerations in terms of that. I think, you know, a lot of our cases, you know, now that we're at the May 1, I think these planters are obviously are gonna roll unless they're inhibited by, you know, wet temperatures in in terms of rainfall or something that comes in you know in terms of that. But that seems to be what the trend is there. Let's bring this back home here a little bit together in terms of what we need to be aware of and we talked about both corn and soybeans once again in terms of seedling diseases, at least from the standpoint that tend to be a little bit more common that growers again should be aware of. Perhaps spend some time studying, learning a little bit more about but trying to recognize some of the symptoms again.
Dave Nicolai:I think we mentioned obviously pythium, and you also mentioned in terms of that fusarium.
Dean Malvick:Fusarium.
Dave Nicolai:And we didn't really talk about rhizoctonia here. Does that play into this set as well?
Dean Malvick:Yeah. It it does. Let's talk about that a little bit. I didn't mention that yet because we're focused on cool wet conditions.
Dave Nicolai:Alright.
Dean Malvick:You know, some of them, are really favored by warmer conditions. And so against some of the fusarium, some of the Pythium are really favored by the cooler conditions whereas the Rhizoctonia and Phytophthora really are favored to infect the plants under warmer conditions.
Dave Nicolai:And what would be warmer?
Dean Malvick:I'd say 65 and above?
Dave Nicolai:Air temperature, soil? Soil temperature. Soil temperature, okay.
Dean Malvick:Yeah, as a general idea. Some of them do a little better when it's above 70. So something like Rhizoctonia, you know, tends to be worse if planting is delayed until, say, of, you know, very wet soil until late May. And it starts to dry up enough to get out there, and by then, of course, the sun is typically intense, the soils warm up fast, and might get some more rain that's the ideal condition for Rhizoctonia which can be very very damaging to stands.
Dave Nicolai:Well I think you also alluded to knowing a little bit about your variety. Yes. Obviously both its corn and soybeans and tolerance resistance in there. But those are good tips and things that you have to keep in mind when you're going out looking in there. We had talked before about that these are infectious situations.
Dave Nicolai:You may have a biotic or non infectious poor planting conditions something else that might be deep planting you know crusting. Seth anything else that comes to mind?
Speaker 4:Well yeah obviously I mean these these things are what leads us to increase our risk. Right? We're talking about things like crusting and other problems that happen after after planting. So, you know, working to avoid or reduce the risk of problems like that. You know, lot of farmers always wanna ask me about crusting and, you know, suggest we just plant higher seeding rates and things like that.
Speaker 4:But the reality is crusting is mostly caused by this heavy pounding rains on on open soils. And so if we can have more residue cover, we tend to reduce the amount of things like crusting. So there's there's give and take. So that's a perfect example of a time when, you know, planting no till might cause us more problems in terms of reducing soil temperatures, you know, may may provide a more of an opportunity to have an extended emergence period and may open ourselves up to some some seedling diseases. On the other hand, it probably helps things like crusting and some other issues like that.
Speaker 4:So, you know, there's a lot of these are big systems and there's a lot going on in that. A lot of variables to take into account for sure.
Dave Nicolai:Good information. Dean, anything else that you'd like to mention at this point? Thinking about what's happened and where we're going here this spring?
Dean Malvick:Yeah, I think a lot of good points. Seth brought up the key point. These are really complex environments in the field. And, you know, we can talk about a disease, but it really isn't occurring in the absence along with a bunch of other conditions that bring it on. Sometimes we have many times we have wet, cool conditions and we think, Oh, we might really have a problem, but in fact we don't.
Dean Malvick:Right? We don't have all the conditions coming together to really create the disease issue. Sometimes in our own field trials we do everything we can to create a disease so we can test a product, for example. We irrigate, you know, we inoculate with a pathogen. Put a susceptible variety out there, we think we do all the things we need to create the ideal disease triangle, we still don't get the disease.
Dean Malvick:The thing is most of our crops, they've been bred to be really very resilient conditions so that's something to keep in mind. And it's not just one thing that's occurring that causes these significant issues to happen.
Dave Nicolai:It's usually a number of things. And if people want a good introduction to this, on the University of Minnesota Extension website, if you go under crops and you look, you have a section on diseases. I do. And obviously we have information on growing corn and soybeans but you know the planting that we talked about last week in terms of planting time. A lot of that good information is there so search, Google, whatever you need to on those on those sites.
Dave Nicolai:We've kept those up to date and there's a good description of the diseases. So if you need a primer or introduction to that. There's also a lot of other good obviously information on the web from other land grant universities. I know there's a you know farmer's guide to soybeans and farmer's guide to corn diseases that's that's out there published by the APS. So there's a lot of things that people can touch base with and hopefully but get a third get opinion here as as we go forward with that.
Dave Nicolai:So we know that you know the corn and beans obviously a lot of it'll go in just briefly I'll touch base sugar beets starting to be planted in Minnesota here as well so things are are looking at their, have their whole set of issues obviously in planting that situation. But they really wanna get those folks get that in the ground as well. So some of those growers are gonna be actually doing three things at once. But think we're actually we're concerned about soil temperature and that has an influence in here. But this point Seth I think people are looking a little more strongly on that calendar.
Speaker 4:For sure I think it's time it's time to get going but you know we have to also acknowledge that we have a big state north to south and there's a lot of variation out there. So while some farmers may be out today in Southern Minnesota and certainly by tomorrow there's gonna be a lot of folks going that would be Tuesday the second. You know, if we look to sort of Northwest Minnesota and the Red River Valley, it could be a couple weeks before we see significant movement up there. And so I think it's it's important for us to acknowledge that there's a variety and even, you know, some of these areas where we were last week, Dave, they Browton, where they got six inches of rain. There's gonna be there's gonna be some challenges getting into some of those fields.
Speaker 4:Even with 70 degrees and and windy conditions coming up, there's gonna be some spots that are still held out. And so I think everybody's gonna be going hard this week and if they're not, they're going to be wishing that they were I think.
Dave Nicolai:Well the bottom line is we still have time. And a lot of our applied research we indicated last week, know, the fifteenth we're only probably losing you know two or 3%. It's not a major situation here. I mean people will want to get it in. I understand that in you know, in terms of that but
Speaker 4:Yeah, sorry Dave, was answering the wrong question. I didn't know you're fishing for that answer. But yes, you're absolutely right. It's still early. We still have a lot of time both in Southern Minnesota and in Northwest Minnesota.
Speaker 4:The calendar dates, we can still maximize yields based on historical yield trends for both corn and soybeans. We're in kind of a sweet spot this week for both crops. I think planting the May is actually really good for both crops. And as we talked about before we went on the air, you know, the end of the mid season and end of the season is really where these crops are really created. So the real impact is what happens later.
Speaker 4:We're kind of setting the stage a little bit, but in terms of the maximum, the best planting date in any particular year, we can still have really, really good yields going out into the next few weeks everywhere in the state. So certainly not a huge rush. I just know that, you know, getting things out earlier tends to be better for us, but we're still in really good shape.
Dave Nicolai:Well thank you very much. I guess that's what we wanted at least to cover. And Dean, if you don't have anything else, maybe you have one more thing.
Dean Malvick:Yeah I have one more thing. Dave mentioned a few resources that are available to help understand diseases and one more I would like to put a plug in is for the crop protection network which has a lot of good resources. And Seth I think you're involved with a bunch of agronomists on another web based information platform and what can you say about that?
Speaker 4:That's the Soybean Research Information Network. So that's SRIN or SRIN or SRIN. Not sure how you'd pronounce it but it's s r I n, I think, .infoor.com. I'm not sure. But soybean information Soybean Research Information Network.
Speaker 4:It's housed at Iowa Soybean, but it's supported by the United Soybean Board. And there's a lot of good resources from a lot of different places beyond just the agronomy community on that site.
Dean Malvick:Including plant pathology and disease information on there, yes.
Dave Nicolai:Very good. Well we'd like to thank our guests Doctor. Dean Melvick, University of Minnesota Extension, a plant pathologist for corn and soybeans Doctor. Seth Nave, University of Minnesota Extension soybean specialist for being here today for this particular podcast. Stay tuned for next week.
Dave Nicolai:I think we're gonna jump into weed control because that's gonna be on the offing and you know we can't forget about the need for that pre emergent herbicide to be timely to help us as we go forward through the cropping year. So this has been Dave Nicolaid with University of Minnesota, Agronomy Update and Extension. Thank you for listening.