NJ Lawns Community

Hey everyone, really frustrated right now. I woke up this morning and found several brown patches scattered across my front lawn in Ridgewood. It's a few years old, tall fescue mix. My irrigation system has been running on the normal morning schedule (5:30am, about 20 min per zone) like it has every summer. Checked the heads and they're popping up just fine. Nothing looks clogged. What gives? My next door neighbor's yard is green as can be and we're on the same program. Called a guy but he's booked out two weeks. Really don't want this to spread. Anyone seen this before?

Wait, 20 minutes per zone? That's your whole run time? Dude, that's probably your problem right there. Tall fescue needs about 1-1.5 inches of water PER WEEK including rainfall. At 20 min assuming standard pop-ups you're maybe putting down .25 inches if you're lucky. You're basically giving the grass a sip when it needs a drink. Check your heads though first - are they actually spraying or is it just dribbling out? I've seen plenty of nozzles get worn down and barely put out anything. Go to Lou's in Waldwick and grab some new nozzles if you need them, they're pretty helpful there.

Mike's partly right but I'd also add that timing matters more than people think. You're watering at 5:30 which is okay but you're not getting good absorption. Tall fescue roots go deeper than most realize - you want to water less frequently but longer to encourage root depth. Right now you're probably just wetting the top quarter inch which creates shallow roots and stresses the grass. Also, are you watering every single day? Because you shouldn't in this humidity we're getting in Bergen County lately. I'd switch to every other day, 35-40 min per zone, and do a soil probe test to see how deep you're actually soaking. Trust me, your pockets will thank you come July.

Steve I hear you but I've always done the daily quick water thing and it's worked fine until now. Could it be disease rather than water? There's also this fuzzy stuff on a couple spots that wasn't there last week. Might that be related?

Fuzzy stuff? Could be dollar spot or brown patch especially with the humidity we've had. Those fungal issues love wet foliage. Are you keeping the mower blades sharp? Dull blades tear the grass and create entry points. Also I'd stay OFF those infected areas whenwet - mow last and clean the deck after. If it is fungus you're going to need a fungicide treatment. Some of the products at the garden centers in Paramus work but honestly might be worth getting a pro to confirm. Don't guess on fungicides, you'll waste money.

The fuzzy stuff could also be snow mold if it's leftover from winter damage that didn't recover properly. Ridgewood lawns had a rough spring with all those temperature swings. Do the screwdriver test - stick it in the ground where the brown spots are. If it goes in easy you've got life in the roots and it's probably water/stress. If it hits hardpack or won't go, there could be root rot happening below the surface. That would explain why irrigation isn't helping - damaged roots can't uptake water even if you're drowning them. Let us know what you find.