Register free!


Reply
 
Thread Tools   Display Modes
  #1  
Old 10-02-2013, 11:18 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
Axonopus compressus.

Took quite a undertaking to identify this pita weed invading a customers lawn.
It took numerous samples and my Extension agent a solid day to identify this stuff. I have discovered that not much in the way of information has been helpful to control this broadleaved carpet grass variety.
It will be hitting the lower 40's this weekend and highs in the lower 70's next week. Is there any chance to control this weed during the premergent a
Posted via Mobile Device
Reply With Quote
  #2  
Old 10-03-2013, 04:33 AM
greendoctor greendoctor is online now
LawnSite Fanatic
 
Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,437
What kind of turf is it invading? This is one of those tropical grasses I fight all the time. In warm season turf, Celsius, Monument, or Revolver will kill it. I notice this weed being much worse in overly wet areas that are also shaded. Does not like low mowing or the high iron liquids I use to fertilize lawns.
__________________
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775

Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738
Reply With Quote
  #3  
Old 10-03-2013, 08:42 AM
ArTurf ArTurf is online now
LawnSite Silver Member
 
Join Date: Jan 2007
Location: Ark
Posts: 2,225
What is the common name of this plant? Pics maybe
Reply With Quote
  #4  
Old 10-04-2013, 09:19 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
Guys, I am sorry for the sudden stoppage of my post. My wireless router took a down load and stopped the other evening.
Greendoctor.... The choice lawn is zoysia. This weed is progressing into his fine turf from a neighbors lawn that is blanketed with this stuff. Yes, my customers lawn is thick elsewhere, however the areas of infestation is semi shaded and wet as a sponge.
I need to know if cooler temps will be successful to control this season. We have about a month or less before first lg frosts hit. I don't want to spend the cash on monument or Celsius this late in the season if it proves to be futile. I plan on doing a fall pre of pendi split and simazine. Next spring will be pendi and barricade. I want to control this stuff from seed emergence.
Like I stated, the expense of the product is of no concern to the customer..... He wants the weed gone, but my credibility of successful removal is at steak.
Posted via Mobile Device
Reply With Quote
  #5  
Old 10-04-2013, 09:23 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
Ar,
This weed is the broadleaf version and not the other breeds that is common in other tropical regions. The leaves is long and wide with a carrot looking yellow taproot. Prostrate growing stolons and rhizomes.
I will try to get online pic as all the weed remnants is at my local extensions office.
Posted via Mobile Device
Reply With Quote
  #6  
Old 10-05-2013, 02:16 AM
greendoctor greendoctor is online now
LawnSite Fanatic
 
Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,437
Quote:
Originally Posted by Think Green View Post
Guys, I am sorry for the sudden stoppage of my post. My wireless router took a down load and stopped the other evening.
Greendoctor.... The choice lawn is zoysia. This weed is progressing into his fine turf from a neighbors lawn that is blanketed with this stuff. Yes, my customers lawn is thick elsewhere, however the areas of infestation is semi shaded and wet as a sponge.
I need to know if cooler temps will be successful to control this season. We have about a month or less before first lg frosts hit. I don't want to spend the cash on monument or Celsius this late in the season if it proves to be futile. I plan on doing a fall pre of pendi split and simazine. Next spring will be pendi and barricade. I want to control this stuff from seed emergence.
Like I stated, the expense of the product is of no concern to the customer..... He wants the weed gone, but my credibility of successful removal is at steak.
Posted via Mobile Device
Don't bother if it is getting cooler. I had a horrible time with weed control last year and part of this year. My usual herbicides do not work for crap unless it is near 90 in the day and does not go below 75 at night. Speedzone or 2,4-D ester are fine for broadleaves, but are not for sedges or grasses. I even had a treatment failure in 2010. Certainty applied to nutsedge. No sun, temperatures below 80 in the day, and nights going down to the low 60s. My mix should not have been a problem. 1.25 oz Certainly 1% MSO and 1 oz per acre Quicksilver applied through AI fan nozzles at 40 PSI. 50 gallons spray volume. In warm weather, that mix applied in that manner fries sedges in a week.

Preemerge the heck out of the lawn now and in the spring. If it shows up next year, Monument + Celsius. Since this is in zoysia, you might consider Acclaim + Turflon Ester or Ornamec + Turflon Ester.
__________________
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775

Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738
Reply With Quote
  #7  
Old 10-05-2013, 08:26 AM
ArTurf ArTurf is online now
LawnSite Silver Member
 
Join Date: Jan 2007
Location: Ark
Posts: 2,225
Quote:
Originally Posted by Think Green View Post
Ar,
This weed is the broadleaf version and not the other breeds that is common in other tropical regions. The leaves is long and wide with a carrot looking yellow taproot. Prostrate growing stolons and rhizomes.
I will try to get online pic as all the weed remnants is at my local extensions office.
Posted via Mobile Device
I looked it up already. Haven't really come across this. Can you post a pic from this lawn you are dealing with.
Reply With Quote
  #8  
Old 10-05-2013, 08:31 AM
ArTurf ArTurf is online now
LawnSite Silver Member
 
Join Date: Jan 2007
Location: Ark
Posts: 2,225
Quote:
Originally Posted by greendoctor View Post
Don't bother if it is getting cooler. I had a horrible time with weed control last year and part of this year. My usual herbicides do not work for crap unless it is near 90 in the day and does not go below 75 at night. Speedzone or 2,4-D ester are fine for broadleaves, but are not for sedges or grasses. I even had a treatment failure in 2010. Certainty applied to nutsedge. No sun, temperatures below 80 in the day, and nights going down to the low 60s. My mix should not have been a problem. 1.25 oz Certainly 1% MSO and 1 oz per acre Quicksilver applied through AI fan nozzles at 40 PSI. 50 gallons spray volume. In warm weather, that mix applied in that manner fries sedges in a week.

Preemerge the heck out of the lawn now and in the spring. If it shows up next year, Monument + Celsius. Since this is in zoysia, you might consider Acclaim + Turflon Ester or Ornamec + Turflon Ester.
I've been reading the label on Turflon and it says do not use on zoysia unless damage can be tolerated which has made me hesitant to use. Do you use turflon on zoysia and what type of damage do you see?
Reply With Quote
  #9  
Old 10-05-2013, 02:04 PM
greendoctor greendoctor is online now
LawnSite Fanatic
 
Join Date: Mar 2008
Location: Honolulu, Hawaii
Posts: 7,437
None. Turflon Ester applied broadcast to healthy zoysia kept at the correct height does not look any worse than other broadleaf herbicides. YMMV if it is applied to rotary mowed zoysia that is not on irrigation.
__________________
They who can give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety.
Benjamin Franklin 1775

Sell not virtue to purchase wealth, nor Liberty to purchase power.
Benjamin Franklin Poor Richard's Almanac1738
Reply With Quote
  #10  
Old 10-05-2013, 09:33 PM
ArTurf ArTurf is online now
LawnSite Silver Member
 
Join Date: Jan 2007
Location: Ark
Posts: 2,225
Quote:
Originally Posted by greendoctor View Post
None. Turflon Ester applied broadcast to healthy zoysia kept at the correct height does not look any worse than other broadleaf herbicides. YMMV if it is applied to rotary mowed zoysia that is not on irrigation.
Good to know. May use on a zoysia lawn next year with fusilade for Bermuda removal.
Reply With Quote
Reply

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 08:57 AM.

Page generated in 0.08113 seconds with 9 queries