Good time for first app of NPP 1-2-3 for NRS?

[DA Quality Lawn & YS]

Picked up some NPP 1-2-3 from ICT. Want to use it on 3 lawns infected with Necrotic Ring Spot. All three lawns had bad flare ups late last summer, and some of the frogeyes even remain up to now.

Looks like a good stretch of warm (70 deg +) weather this coming week. Lawns are not stressed now. Is it a good time to put down a preventative app of 1-2-3 NPP at this point? Soil temp looks to be 60 or so and likely to go up this week.
OR
Should I put down a curative rate of this product since there are active pathogens on each of these properties?

I would ask ICT Bill but cannot get ahold of him at all.

[NattyLawn]

When I used NPP there was no preventative rate, just curative. If you feel the need to apply a preventative, I would say go ahead. Follow that up with an organic fert app (NPP is not nice to biology) and don't fertilize in the summer, as the N will help fuel the disease.

[pieperlc]

Originally Posted by DA Quality Lawn & YS

Picked up some NPP 1-2-3 from ICT. Want to use it on 3 lawns infected with Necrotic Ring Spot. All three lawns had bad flare ups late last summer, and some of the frogeyes even remain up to now.

Looks like a good stretch of warm (70 deg +) weather this coming week. Lawns are not stressed now. Is it a good time to put down a preventative app of 1-2-3 NPP at this point? Soil temp looks to be 60 or so and likely to go up this week.
OR
Should I put down a curative rate of this product since there are active pathogens on each of these properties?

I would ask ICT Bill but cannot get ahold of him at all.

How do you plan to apply this? How many gal/k for carrier. I'm using some and wondering how the best way will be to get the product down into the soil?

[phasthound]

As per the label:
Preventative rate; mix 2oz 1-2-3 NPP with 1 gal water to treat 1K. Apply every 14 days

Curative rate: mix 3oz 1-2-3 NPP with 1 gal water to treat 1K.

Other considerations:
Do not irrigate for 4 hours if treating for tissue fungus.
Irrigate with 1/4" to 1/2" water after application if treating for soil borne fungus.
As Natty noted, follow up with a good soil inoculant and/or biologically active organic matter.

[DA Quality Lawn & YS]

Good information (some of which is on the label).
So, for Necrotic RS, being a soil borne pathogen, the app really needs to be irrigated (rained or sprinkled) in, correct?

[phasthound]

Originally Posted by DA Quality Lawn & YS

Good information (some of which is on the label).
So, for Necrotic RS, being a soil borne pathogen, the app really needs to be irrigated (rained or sprinkled) in, correct?

Yes, that is correct.

Other cultural methods such as aeration & proper irrigation should be part of the plan.