Rhizoctonia

You know, again, if, if you're one who you're making fungicide applications to greens and in it, I don't care if they're warm season greens or cool season greens.

If you're spraying fungicides on your greens in the summer and those fungicides provide protection against things like anthracnose and Rhizoctonia and you spray into the collars, that's gonna help any poa that's in that collar survive just the same.

So when we look, and I-- these are US trade names here.

I'm gonna highlight a few of these, uh, of what are standby, uh, standby programs, uh, for green surrounds.

Um, but I can tell you within about two weeks that we're going to have a really good dial on what the power of this thing's going to have on sudden death syndrome.

white mold this year knock on wood I haven't seen any white mold it just being that we've been extremely dry actually I shouldn't say that there was a field down in that same quarter that I saw one field that had it but we're not seeing the white mold pressure like we nearly do but the one thing i will say that we have seen and it'll be really interesting because you don't really see the damage this time of year but rhizoctonia was a big problem in at least in my area wisconsin i know over into southern minnesota we were planting beans into really cold soils and then some of those cold soils they were dry but then they got wet then we got really hot Rhizoctonia root rot, it's a root pruning fungus, essentially, or a pathogen that can be a very big problem in soybeans early.

That's a disease that everybody treats their soybeans for typically.

Now, once the beans kind of fight it off or pull out of it, they start growing and You can't really pick out Rhizoctonia in a field today.

I can't, you know, look at a field and say, yep, that plant, you know, 40 yards away has it and that one doesn't.

But where it's going to show up is on the yield monitor.

So we had some plots in some of these trials that I was talking about before those proof of concept trials that got whacked with Rhizoctonia early.

seed treatment and ran out the residual on that and so we were relying on the 601 and there was some pretty remarkable differences we were digging plants especially in our plots that we got over by Marathon Wisconsin there was some major major differences so we kind of guess we'll

Yeah, so this is a really great new investment and it brings together some existing GRDC investments.

So previously I've been involved in the Rhizoctonia project, the Pulse Root Diseases project, so the Afanomyces work has been part of that Pulse Root Disease project.

There's also been investments in crown rot and sclerotinia going on around Australia.

And they've just refunded some nematology work.

You know, Pythium, for example, will typically almost always kill the plant when it infects the plant.

Um, Rhizoctonia not, is not always that, that deadly to the plant.

It, it restricts growth and it, and it causes some problems on the yield side, but you're probably not gonna see plant death.

And so I think that's something to consider as well, you know, where you'll, you'll have certain pathogens that are certainly more damaging to individual plants than others as well.

The coated seed usually has a fungicide on it to prevent the seed from dying due to some of these seedling diseases.

A little bit too much water and a little baby grass seedling can die from Rhizoctonia or some other kind of Pythium or Phytophthora.

These are the names of these diseases that are everywhere.

So the coating has a fungicide in them usually.

This time of year, we're starting to see cool season fall crops going to the ground, which has led to conversations about bottom rot in lettuce.

Bottom rot is caused by a soil-borne fungus, Rhizoctonia.

Infection occurs when sclerotia, these dormant resting structures, germinate and produce mycelium that penetrates healthy or wounded tissue.

Bottom rot symptoms typically develop first on lower leaves that-- the ones that are in contact with the soil, and so you'll see small rust-colored spots, primarily on undersides and leaf midribs.

As symptoms progress, and when conditions are favorable, it'll, it'll kind of rip through that plant.

Decaying heads are at first slimy and brown, and they become dark brown to black as they collapse and dry, and then maybe you'll see a webbed network of white to brown mycelium grow over those lesions.

This soil-borne pathogen, Rhizoctonia, it, it's a very common soil inhabitant, so...

And, and most people can live with this.