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  #41  
Old 07-04-2011, 07:57 PM
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grassman177 grassman177 is offline
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Quote:
Originally Posted by greendoctor View Post
On what kind of grass? Cool season or bermuda? On bermuda, metsulfuron is a very good control for oxalis. It seems as though the product hangs around until there is water. Based on the AIs in Surge, I would expect mostly a top kill of oxalis. If I want a root kill of oxalis, that usually is provided by high rate dicamba, triclopyr or metsulfuron. If the turf is tolerant, T Zone would be another option because it has a high rate of triclopyr ester.
fescue, blue and mixes of the two. i never have issues untill it is a dry period. i am too long ago to remember if triclopyr has any truf damage in those conditions?
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  #42  
Old 07-04-2011, 08:01 PM
greendoctor greendoctor is online now
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Cool season turf in hot, dry conditions. I would advise not applying anything. Especially if they are going through heat dormancy. Triclopyr is safer in cool weather. Even I stop spraying if it is over 90 and excessively humid. Otherwise I will have fried grass and vapor damaged trees and shrubs to deal with.
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  #43  
Old 07-04-2011, 08:03 PM
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for the most part, we dont have bad infestations of any weeds, but the ones there are can be hard to get a good kill in dry conditions. again, it really is about proper spraying conditons that are rarely there. i do try to take advantage of it though when possible.

so, what could be better on oxalis and sedges during dry other than surge at max rate and a good surfactant?
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  #44  
Old 07-04-2011, 08:05 PM
greendoctor greendoctor is online now
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Straight Dicamba for the oxalis. Sedgehammer for the sedges. Those are the two products I have not had any problems with in hot, dry weather.
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  #45  
Old 07-14-2011, 05:54 AM
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update, all oxalis sprayed is completely gone!

the violet is still there , but hurting pretty bad
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  #46  
Old 07-14-2011, 11:22 AM
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DA Quality Lawn & YS DA Quality Lawn & YS is offline
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I sprayed a few lawns with oxalis/woodsorrel with straight Trimec Classic last Friday. It was mid eighties and fairly humid. Checked some of those lawns last night, and surprisingly the TC was knocking the oxalis down. I would say probably 50-75% kill. Not bad for something that is not supposed to put a kill on oxalis.

That said, I am switching to TZone for any future outbreaks of oxalis. That, or Momentum FX2 if it is over 75-80% or so.
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  #47  
Old 07-14-2011, 03:27 PM
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You should use Trimec or T-Zone at maximum label rate for oxalis and the tough weeds. Oxalis and some tough weeds are hard to wet. You should include a surfactant (as much as you want--no regulations). Of course, surfactant can be costly, except it is cheap in spot spraying and low volume situations.
Try to spray all weeds when they are young and growing fast--rather than mature at flowering or going to seed.
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  #48  
Old 07-14-2011, 06:27 PM
LAWN ESCAPE LAWN ESCAPE is offline
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T-Zone Herbicide works great for Oxalis and Creeping Charlie control (also known as ground ivy).

I applied T-Zone at the 1.5 oz/1,000 sq ft rate and got excellent results. Also according to the universities, fall is an excellent time to control Creeping Charlie.

For wild violets: The T-Zone label says *** For best results, apply in the spring when wild violets are blooming or apply a late fall application followed by a spring application. http://www.pbigordon.com/pdfs/T-Zone-SL.pdf

For spring applications to "blooming" wild violets, the late April or early May is the best timing.

Pictures are worth a thousand words.

SEE Creeping Charlie (Ground Ivy) pictures:
SEE Oxalis pictures:

Untreated and 14 days (both weeds) after treatment with T-Zone.
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  #49  
Old 07-14-2011, 07:51 PM
dgw dgw is offline
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nice , lawn escape, thanks guys


DA- i found trimec can be deceiving with oxalis , it will suppress it but thats all ive gotten


i run 992 in my 120 gallon tank at 1.20z per k , with a surfactant and have had no kill on oxalis


now that i know t-zone will kill oxalis, i picked up a pound of dry drive 75


im going to mix t-zone and drive in my spot backpacks in hopes of creating the ultimate spot spray solution



i will document a few difficult to control weeds


let me know if there are any requests
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  #50  
Old 07-20-2011, 12:14 AM
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Young Bros Young Bros is offline
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We use T-Zone in the fall-late fall. We don't use in high temps cause it is ester based. Volitization can occur with higher temps, high humidy, & light-no wind. Tricropyr works good in the fall, cause in the fall weeds are transfering all their energy to the roots. Works pretty good on creeper & violets. We always use LI700 in our tank mixes.

For crabgrass, we use Solitare. It has sulfentrazone (also in t-zone) & quinclorac (also in drive) in it, so it kills weeds & crabgrass. Nice little bottle of dry with a scoop that we put in backpacks.
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