Register free!
Search
 
     

The Green Industry's Resource Center


Click for Weather
Reply
 
Thread Tools Display Modes
  #1  
Old 06-21-2009, 09:41 PM
130perweek 130perweek is offline
LawnSite Member
 
Join Date: Oct 2008
Location: Centereach, NY (60 miles East of the big Apple aka Long Island)
Posts: 17
Lawns turning brown after cutting

I'm having a problem cutting a few of my weekly lawns. The lawns are growing and they look really good. I am cutting them at appx 3 1/2", and at that height, I'm taking at least 4-5 inches off of them. I do mulch the grass, and a lot does fall into the grass to the ground, but I also do blow a lot of it away.

The problem I'm having is that the green lawns turn mostly brown after cutting. I heard a rumor, maybe there is some truth to it, that the chlorophyll in the blade of grass go halfway down that blade of grass, so when I cut, I'm taking off more than half of the length of the blade of grass, hence getting rid of all the chlorophyll, and the lawns are brown underneath.

Is there any truth to this theory? Anyone know how to fix this problem? The client is asking what is going on, but I truly have no idea. Maybe someone here knows something about this problem.

Thanks,


Chris
CJH Landscaping
Reply With Quote
  #2  
Old 06-21-2009, 10:33 PM
JDiepstra JDiepstra is offline
LawnSite Bronze Member
 
Join Date: Dec 2008
Location: Grand Rapids MI
Posts: 1,512
You should not cut off more than 1/3 of the blade. You are taking off about 2/3. Tell them to water less, and you may need to mow more often.
Reply With Quote
  #3  
Old 06-21-2009, 11:04 PM
STIHL GUY's Avatar
STIHL GUY STIHL GUY is offline
LawnSite Fanatic
 
Join Date: May 2008
Location: CT
Posts: 5,157
you may have to double cut it or cut it a few days apart just to get in under controll or ask them not to water as much. but you are deffinitly taking too much off
__________________
2005 Chevrolet 2500HD LS 4x4 6.0L
8' Fisher MM Snowplow
6.5' x 14' Big Tex Open Trailer
61'' Scag V-Ride 29 HP Kawi
48" Exmark Lazer Z HP
48'' Bobcat Ransome Mower
21'' Husqvarna Mower
Stihl FS55R Weedwacker
Stihl FS100RX Weedwacker
Stihl BR600 Backpack Blower
Stihl MS180C Chainsaw
Giant Vac Walk Behind Blower
Kawasaki KHT600S Hedge Trimmer
Giant Vac 16HP Leaf Loader
Reply With Quote
  #4  
Old 06-22-2009, 08:45 AM
White Gardens's Avatar
White Gardens White Gardens is online now
LawnSite Fanatic
 
Join Date: May 2008
Location: Bloomington IL
Posts: 6,756
Yes, when you cut too much off, the yard will have a brown appearance. Much of it has to do with sun light exposure, and the grass being tall. Your theory is correct.

Another thing is also how "lush" a lawn is. Around here, with all the rain we've had, I've never seen lawns this thick, this time of year, so it's inevitable to get some browning when mowing.

I generally have this problem in the spring, or when extremely wet. Once I get the yard under-control and mowed once a week, then the browning condition tends to go away.

Lately, I noticed it only takes about a day for a yard to green back up, so yes it looks crappy when mowing, but snaps right back.

Tell them to cut back on the fertilizer too. This will keep it a little shorter week to week.
__________________
White Gardens On Facebook.......WG Thread......Greencare For Troops......... mywhitegardens.com(under construction)

2005- Completion of University of Illinois Master Gardner's Program.
Reply With Quote
  #5  
Old 06-22-2009, 06:59 PM
Stingray63 Stingray63 is offline
LawnSite Member
 
Join Date: Jun 2009
Location: Portland Oregon
Posts: 25
Are you using lawnmower blades that are sharp everyday? That can also cause grass to turn brown because it tears the grass blade instead of cutting it. Like another poster said, you're also cutting more grass than you should be taking off.

Stingray
Reply With Quote
  #6  
Old 06-22-2009, 09:30 PM
david shumaker david shumaker is offline
LawnSite Senior Member
 
Join Date: Oct 2005
Location: Richmond, VA 23225
Posts: 721
I've noticed this on some of my lawns. The grass has been growing so fast that I have to cut a liitle more than 1/3 off. Some yards really need cutting more than once a week if tall and thick, but it has been hard to keep up with once a week and nobody wants to pay for every 4 or 5 days which I don't blame them.

The yards green back up after a few days.
Reply With Quote
  #7  
Old 06-23-2009, 06:13 AM
JNyz JNyz is offline
LawnSite Bronze Member
 
Join Date: Mar 2008
Location: Conshohocken, PA
Posts: 1,072
Quote:
Originally Posted by 130perweek View Post
I'm having a problem cutting a few of my weekly lawns. The lawns are growing and they look really good. I am cutting them at appx 3 1/2", and at that height, I'm taking at least 4-5 inches off of them. I do mulch the grass, and a lot does fall into the grass to the ground, but I also do blow a lot of it away.

The problem I'm having is that the green lawns turn mostly brown after cutting. I heard a rumor, maybe there is some truth to it, that the chlorophyll in the blade of grass go halfway down that blade of grass, so when I cut, I'm taking off more than half of the length of the blade of grass, hence getting rid of all the chlorophyll, and the lawns are brown underneath.

Is there any truth to this theory? Anyone know how to fix this problem? The client is asking what is going on, but I truly have no idea. Maybe someone here knows something about this problem.

Sounds like you don't have them on a weekly schedule.
Thanks,


Chris
CJH Landscaping
Sounds like you don't have them on a weekly schedule.
Reply With Quote
  #8  
Old 06-23-2009, 06:19 AM
New Image Lawn and Scapes New Image Lawn and Scapes is offline
LawnSite Member
 
Join Date: Feb 2006
Location: Chesapeake Virginia
Posts: 21
Do you have a fungus like brown patch? It is all over the place here on the east coast right now. The weather has been perfect for it.
Reply With Quote
  #9  
Old 06-23-2009, 10:58 PM
Whitey4's Avatar
Whitey4 Whitey4 is offline
LawnSite Silver Member
 
Join Date: Dec 2007
Location: Long Island, New York
Posts: 2,448
As a fellow LI'er, I can tell you two things are happening here. Well, maybe 3 things.

If you are cutting weekly, even with all this rain, taking off 4 inches is way too much. These lawns have too much nitrogen. I am also cutting at 3 1/2 inches now.... for two reasons. (I usually cut at 3 inches). The red thread is just beyond belief. Saw not one lawn with it last year, and EVERY lawn has at least some this spring. I raised my deck to help hide the fungus damage.

Even lawns that have gotten the right amount of nitrogen have crazy top growth. Taking off half the top growth exposes stems, which are brown. You also expose the fungus damage.

The new top growth will hide both the stems and the fungus damage, but it takes a day or three.

Bottom line, this has been a very dufficult spring with excessive rain, top growth and fungus issues.
__________________
Just me and Badger the beer dog!
Reply With Quote
  #10  
Old 06-24-2009, 06:07 AM
130perweek 130perweek is offline
LawnSite Member
 
Join Date: Oct 2008
Location: Centereach, NY (60 miles East of the big Apple aka Long Island)
Posts: 17
This is a weekly lawn cut.

Blades are always sharp (I know the difference between the grass 'cutting' and 'ripping').

As far as taking too much off, I understand that....but how am I supposed to get these lawns under control? I can only show up once a week and I'm taking off 5 inches, or more, off. If I only took off 1/3 every week, these lawns would be over a foot tall in only several weeks. Then the lawns would be so tall, it would start flopping over at the top.

I guess I would really have to ask them if it would be okay to cut more than once per week during this growing season. Then I'd have to see if I could work it in to twice per week.

So, less fertilizer....less water....cut more than once per week to get under control.
Reply With Quote
Reply

Tags
brown , chlorophyll , cutting , grass , underneath

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 07:37 AM.

Page generated in 0.10827 seconds with 7 queries