brown spots in lawn

tfomMay 28, 2014

I live in northern California just north of Sacramento. It gets hot here in the summer with low humidity. I have brown spots in my yard that maybe fungi. What I would like to know is, how to tell if it is a fungi and what organic method can I use to eliminate the spots. I see information about Actinovate, but it appears that this is used in humid areas. Can or should Actinovate be used in my area?

Thank you for reporting this comment. Undo
dchall_san_antonio(8 San Antonio)

What kind of grass do you have? If it is St Augustine then you might have a disease. If it is bermuda, you likely have other issues. If it is fescue or Kentucky bluegrass, then we'll need a picture.

What kind of grass?
What is your watering regimen (frequency and duration)?
How high/low do you mow?
When were the last 2 times you fertilized and what did you use?

Can you post a picture?

I've never had good luck with Actinovate against disease, but I have excellent results, year after year, with ordinary corn meal at 20 pounds per 1,000 square feet.

    Bookmark   May 30, 2014 at 2:19AM
Thank you for reporting this comment. Undo

Thank you dchall for your comments. I hope the following information will help.
I have a fescue lawn.
The watering schedule is Sun, Tues, and Thurs for 15min per station.
The mower is set at 3-4" cut.
The last time I fertilized was February with steer manure. I just recently moved into this home.

How are you applying the corn meal? Are you using a hand held spreader?

    Bookmark   May 30, 2014 at 11:36AM
Thank you for reporting this comment. Undo
dchall_san_antonio(8 San Antonio)

Your mowing is fine.

Your watering is wrong. Don't feel too badly. Most Californians water wrong. I grew up in Riverside, and lived all over SoCal until I was 30, so I have a pretty good feel for that. Keeping the soil continually moist can trigger the disease as well as other issues. This time of year in Marysville you should be watering no more than once every 2 weeks. Then in June or July, when daily temps are in the 90s, you can bump that to watering every week. Time how long it takes to fill several empty cat food or tuna cans and water for that duration every week. Allowing the soil surface to dry out completely should keep any disease away and stop your weed pressure.

You cannot go cold turkey from 3x per week watering to watering every 2 weeks. You'll have to wean the grass off the high intensity schedule. Start by watering more deeply (longer) and skipping a watering session. Watch the grass for signs of wilting. If you see that, water immediately but water longer.

    Bookmark   May 31, 2014 at 11:26PM
Thank you for reporting this comment. Undo

Hello dchall

Thank you again for your comments. I live in a farming community of Woodland which is 20-25 miles northwest of Sacramento. The day time temps now run mid 80s to low 90s. I will follow your advice and change my watering habits. Based on your comments, I will eliminate one watering cycle and watch for wilting. Can you advise what you think the disease is that I might have? Should I used corn meal as you suggested and how should it be applied?

thanks again for your help

    Bookmark   June 1, 2014 at 12:32AM
Thank you for reporting this comment. Undo
dchall_san_antonio(8 San Antonio)

I throw corn meal by hand on my small yard. You can use either a drop spreader or a broadcast spreader.

With temps in the 80s you should be watering every other week, but you'll have to water deeply 1 inch. Put come cat food or tuna cans out and time how long it takes your sprinkler to fill them. That time is going to be the time you water every time. Every sprinkler is different. Mine takes 8 full hours to get an inch. My neighbor's takes 20 minutes. When the daytime high temps start sticking in the 90s, move to watering once per week. If you get some dry days or temps in the 100s, go to watering every 5 days. Watch the grass for wilting, though.

    Bookmark   June 1, 2014 at 2:00PM
Thank you for reporting this comment. Undo

when applying the cornmeal to my lawn, should I apply it to the entire lawn or only those areas affected with brown spots. Also, should I water the cornmeal in right away or wait for the normal watering cycle.

thank for all of great council.

    Bookmark   June 3, 2014 at 11:05AM
Sign Up to comment
More Discussions
I want the best yard in the neighborhood
Hello, my name is Wes and I'm pretty much a first time...
Need help with lawn renovation in Phoenix AZ
Thank you everybody for a wonderful forum. I am a new...
New house in Zone 8- needing advice
first post here. i live in the Little Rock area and...
Overseeding KBG with a Different Type of Seed?
We live in the High Desert area of southern California....
Need help with my grass
Each year my grass is having more dead spots and brown...
Sponsored Products
Hand-tied Pelle Brown Leather Shag Rug (5' x 8')
Jane Seymour Potted Orchid 14 in. Silk Flower Arrangement - P4348-CR
$50.00 | Hayneedle
Home Decorators Indoor/Outdoor Accent Rug: Home Decorators Collection Rugs
Home Depot
Raine Leather Chair - Brighton Sunset Orange
Joybird Furniture
Textured Lines Rug 9' x 12' - BLUE
$3,599.00 | Horchow
Barcelona Loveseat-Chocolate - 100% Italian Leather
IFN Modern
Novelty Brown Shade Beside Table Lamp for Home Decoration
Upton Home Hubert Pecan Brown Bar Table
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™