Have you taken care of the grub problem?
Thing with grub damage is the area thats dead and brown just needs to be raked or garden weaseled and sow new seeds.
Im sure I will be corrected but think of the cycle of “grubs”
What did the most damage was the grubs laid 2022 that fed all spring into early summer to hatch mid summer and lay more eggs. The “new” grubs 2023 dont eat much now but next year will be back to repeat the cycle if you dont do anything.
From what I have learned
Dylox is a contact killer and will kill many many bugs in your lawn on contact.
Something like GrubEx is
Chlorantraniliprole which gets into the grass/roots and when the newly hatched grubs come spring 2024 start eating start dying.

 

I did a 24 hr grub killer yes and watered in the lawn. I wasn’t sure on the grass that peeled up like a mat/carpet how I needed to get seed to soil contact and if new seedlings would even grow/push through the mat. If i rented a slice/slit seeder if that would do the job or what?

 

I would imagine tou can pull up the damaged turf ?

Cool Season Overseed Guide

Introduction There seems to be a lot of interest here on the forums for an overseed guide so I'm going to give it my best shot. Keep in mind, this is primarily for TTTF or PRG lawns. Some of these ideas will work with KBG but that's a totally different animal so someone with more KBG experience...

www.thelawnforum.com

 

Ok. I was hoping to avoid that extra step and a slit seeder would knife it in for me. Thanks!

 

Can you post pictures?

 

 

How many grubs did you find under the mat?

 

some of the grubs already went back in the ground… didn’t count exactly but it seemed like a handful

 

How much area?

I would just add some soil to level up and then throw seed then rake in.

 

How much area?

I would just add some soil to level up and then throw seed then rake in.

Random areas… biggest maybe a 10’x15’ area

 

Sorry to hear. Did you apply a grub preventative? Imidacloprid or chlorantraniliprole

 

I didn’t no. Just the 24 hr killer for now. Are you talking preventer now or next spring/early summer? Grubs are all new to me and will have to get a program going.

 

Throw seed now and keep it moist. No need to remove the dead stuff or do anything else. Next spring you need to do GrubEx.

 

Will do. Thanks!