Spray fungus this time of year?
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Spray fungus this time of year?
I had fungus problems in august and ended up overseeding much of my front lawn. I had been using azoxystrobin and propicanizol, and also got some serenade. There are two or three patches that are yellow and reddish (rust). Should I spray this again at this late date or just figure the cold weather will kill it? Thanks in advance.
- MorpheusPA
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Re: Spray fungus this time of year?
Rust isn't a major disease and usually doesn't do any appreciable damage. For the most part, it's firmly in the "ignore" column unless it's running wild.
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Re: Spray fungus this time of year?
MorpheusPA wrote: ↑November 23rd, 2020, 1:56 pmRust isn't a major disease and usually doesn't do any appreciable damage. For the most part, it's firmly in the "ignore" column unless it's running wild.
Thanks Morpheus. I’m pretty sure I had pythium blight in august but this is different and looks like rust so I’ll probably ignore it and make sure I do preventative applications next year.
- MorpheusPA
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Re: Spray fungus this time of year?
Even that's probably overkill. I have rust every year and don't bother doing anything other than noting, "Oh. Rust again."
It really is pretty harmless unless it seriously looks like the surface of Mars. If it does--feed the lawn with a fast-release nitrogen fertilizer. Rust can't stand nitrogen.
Even if you don't, the lawn will regrow over the damage next spring 99% of the time. Spreading lawns will simply repair themselves.
It really is pretty harmless unless it seriously looks like the surface of Mars. If it does--feed the lawn with a fast-release nitrogen fertilizer. Rust can't stand nitrogen.
Even if you don't, the lawn will regrow over the damage next spring 99% of the time. Spreading lawns will simply repair themselves.
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- Posts: 771
- Joined: May 29th, 2014, 5:42 pm
- Location: Piscataway NJ
- Grass Type: Northern Mix
- Lawn Size: 20000-1 acre
- Level: Some Experience
Re: Spray fungus this time of year?
Thanks. I agree, rust isn’t a big deal. In august my lawn had some more serious fungus (I didn’t get it tested at the lab but I think a pythium) and I lost a couple thousand square feet almost overnight. I had been rotating heritage and propicanizol but I did something wrong because it didn’t prevent it although I applied at the preventative rate and intervals on the label.MorpheusPA wrote: ↑November 23rd, 2020, 3:53 pmEven that's probably overkill. I have rust every year and don't bother doing anything other than noting, "Oh. Rust again."
It really is pretty harmless unless it seriously looks like the surface of Mars. If it does--feed the lawn with a fast-release nitrogen fertilizer. Rust can't stand nitrogen.
Even if you don't, the lawn will regrow over the damage next spring 99% of the time. Spreading lawns will simply repair themselves.
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