Register free!


Reply
 
Thread Tools   Display Modes
  #1  
Old 05-13-2011, 02:10 AM
vvcchamb vvcchamb is offline
LawnSite Member
 
Join Date: Mar 2009
Location: Southern Utah
Posts: 17
Lawns burning after app.

My lawns are browning after apps. First time this has ever happened. I calibrated and the rates are normal, using the same mix as usual ( 24d, Aquacap, Double Feature, 46-0-0, and imidicloprid.

The only difference is I'm using Mecamine D instead of 3 way. The mixes never sit in the tank longer than 24 hours, so I don't think I'm getting urea degredation.

It has been cooler and wetter than normal.

Lawns are browing out and completely burning in limited areas. What could be causing this?

Can you help?

BTW I am licensed and have years of experience !
Reply With Quote
  #2  
Old 05-13-2011, 06:39 PM
VLTS VLTS is offline
LawnSite Member
 
Join Date: Apr 2006
Location: Atlanta Georgia
Posts: 56
do you think you could have a fungus problem? Some fungi pop with nitrogen apps.
Reply With Quote
  #3  
Old 05-13-2011, 06:40 PM
VLTS VLTS is offline
LawnSite Member
 
Join Date: Apr 2006
Location: Atlanta Georgia
Posts: 56
do you think you could have a fungus problem? Some fungi pop with nitrogen apps. Just a thought.
Reply With Quote
  #4  
Old 05-13-2011, 07:44 PM
Think Green's Avatar
Think Green Think Green is offline
LawnSite Silver Member
 
Join Date: Jan 2009
Location: Arkansas--Mississippi flood plains
Posts: 2,710
I think adding the liquid urea to the mixture and the temperatures are a little cooler, you have fed the fungus's that are waiting.
Mecamine-D is a 3-way anyway isn't it??? According to the label it says so, just not the same spelling as others. I can only surmise that this cocktail may be conspiring with your normal mixtures and using a different product. Too much to speculate!!!
Reply With Quote
  #5  
Old 05-14-2011, 01:33 AM
vvcchamb vvcchamb is offline
LawnSite Member
 
Join Date: Mar 2009
Location: Southern Utah
Posts: 17
Quote:
Originally Posted by Think Green View Post
I think adding the liquid urea to the mixture and the temperatures are a little cooler, you have fed the fungus's that are waiting.
Mecamine-D is a 3-way anyway isn't it??? According to the label it says so, just not the same spelling as others. I can only surmise that this cocktail may be conspiring with your normal mixtures and using a different product. Too much to speculate!!!
I use granular (feed grade) urea. 200 lbs in a 300 gallon tank.

I was wondering if the app rate for the Mec D is the same as 3 Way. I assumed the rates would be the same but may be they are not. Is anyone familiar with Mecamine D app rates? Could the 24d cause burning?

Last edited by vvcchamb; 05-14-2011 at 01:40 AM. Reason: clarity.
Reply With Quote
  #6  
Old 05-13-2011, 10:58 PM
RigglePLC's Avatar
RigglePLC RigglePLC is online now
LawnSite Fanatic
 
Join Date: Jul 2006
Location: Grand Rapids MI
Posts: 9,510
How much urea? I used one bag for each 70 gallons of water. If you go much above that concentration it will suck the moisture of the leaf blades and cause fert burn. Worse if turf is slightly dry. How many gallons per thousand sqft are you applying?

Why are you applying imidicloprid?
Reply With Quote
  #7  
Old 05-13-2011, 11:28 PM
teejet teejet is offline
LawnSite Member
 
Join Date: Mar 2006
Location: Indiana
Posts: 233
Here are some tips to preventing brown patch. Use no more then 1/2 lb. of nitrogen. Use Hydrexx. Put a little ammonium sulfate in the mix. Use some potash. I don't worry about alittle tip burn.
Reply With Quote
  #8  
Old 05-14-2011, 01:25 AM
vvcchamb vvcchamb is offline
LawnSite Member
 
Join Date: Mar 2009
Location: Southern Utah
Posts: 17
Quote:
Originally Posted by RigglePLC View Post
How much urea? I used one bag for each 70 gallons of water. If you go much above that concentration it will suck the moisture of the leaf blades and cause fert burn. Worse if turf is slightly dry. How many gallons per thousand sqft are you applying?

Why are you applying imidicloprid?
I am using 4 bags urea in a 300 gallon tank. Turf is probably not dry.

I use imi because we have had early stage grubs in late May the last couple of years and the imidicloprid stays long enough to get them.
Reply With Quote
  #9  
Old 05-14-2011, 01:39 AM
vvcchamb vvcchamb is offline
LawnSite Member
 
Join Date: Mar 2009
Location: Southern Utah
Posts: 17
Quote:
Originally Posted by RigglePLC View Post
How much urea? I used one bag for each 70 gallons of water. If you go much above that concentration it will suck the moisture of the leaf blades and cause fert burn. Worse if turf is slightly dry. How many gallons per thousand sqft are you applying?

Why are you applying imidicloprid?
I think my rate is pretty close to 7 gallons per 1000 sq ft.
Reply With Quote
  #10  
Old 05-15-2011, 08:46 PM
rkk95 rkk95 is offline
LawnSite Member
 
Join Date: Mar 2003
Location: west PA
Posts: 163
If you are spraying at 7 gallons per thousand and you are adding 200 pounds of urea to 300 gallons that means you are applying over two pounds of n per 1000 square feet. That is way to high of a rate on any type of grass. Why would you spray at 7 gallons per 100? If that is your true rate then you are only able to get 42,000 per tank. By the way if you read the lable on Mecamine D you will see that it is the same rate as three way or most any 24d product which in my area is 1.5os per 1000 sq ft. and you should be adding half a gallon per tank if what you say about your application rate is true.
__________________
Try me first, try me last, just try me.
Reply With Quote
Reply

Tags
apps , browniing , spray

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 08:18 PM.

Page generated in 0.10261 seconds with 7 queries