Forums46
Topics537,783
Posts9,729,089
Members87,042
|
Most Online25,604 Feb 12th, 2024
|
|
|
Killing Johnson Grass
#7224405
07/14/18 03:36 PM
|
Joined: Feb 2009
Posts: 5,872
GLC
OP
THF Trophy Hunter
|
OP
THF Trophy Hunter
Joined: Feb 2009
Posts: 5,872 |
So what can I spray on Johnson Grass that won't kill Bermuda or St Augustine grass in my yard?
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224444
07/14/18 04:38 PM
|
Joined: Sep 2011
Posts: 1,679
Walkabout
Pro Tracker
|
Pro Tracker
Joined: Sep 2011
Posts: 1,679 |
Ya can't SPRAY over another grass. Use a wipe with wicks. The Johnson grass is well above your Bermuda grass. You will be OK
|
|
|
Re: Killing Johnson Grass
[Re: Walkabout]
#7224515
07/14/18 06:31 PM
|
Joined: Jan 2016
Posts: 7,759
snake oil
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Jan 2016
Posts: 7,759 |
Ya can't SPRAY over another grass. Use a wipe with wicks. The Johnson grass is well above your Bermuda grass. You will be OK This and use a Glyphosate...
"You may all go to hell and I will go to Texas".
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224527
07/14/18 06:49 PM
|
Joined: Mar 2013
Posts: 5,038
jetdad
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Mar 2013
Posts: 5,038 |
Find some MSMA. It will kill Johnson grass and not the Bermuda It will kill the St. Augustine.
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224632
07/14/18 09:38 PM
|
Joined: Dec 2011
Posts: 5,831
Lazyjack
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Dec 2011
Posts: 5,831 |
If the 2nd amendment was written just to include guns for hunting, why is there not an amendment to protect fishing poles?
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224681
07/14/18 11:21 PM
|
Joined: Nov 2006
Posts: 4,265
HOF
Extreme Tracker
|
Extreme Tracker
Joined: Nov 2006
Posts: 4,265 |
Searching the world over for the perfect Chile Relleno.
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224700
07/14/18 11:56 PM
|
Joined: Dec 2008
Posts: 41,160
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,160 |
MSMA is the expensive way.
Round-Up (glyphosphate) is the cheap way. The end result is the same.
The last 2 years I have sprayed Round-Up at 1 pint per 10 gallons per acre (=1.6 ounce per gallon). Bermuda that is good and tall barely shows a hint of yellowing. The Johnson grass gets smoked. Do it before the Johnson grass makes a seed head for longer lasting results.
And before anyone says you can only do that in early spring. I record date, and temp. Every time I've done it, the temps were 90° to 100°F.
This will likely kill St.Augustine in a broadcast spray. If the Johnson is in patches, spot spray it.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Killing Johnson Grass
[Re: J.G.]
#7224797
07/15/18 02:43 AM
|
Joined: Aug 2009
Posts: 22,716
BigPig
THF Celebrity
|
THF Celebrity
Joined: Aug 2009
Posts: 22,716 |
MSMA is the expensive way.
Round-Up (glyphosphate) is the cheap way. The end result is the same.
The last 2 years I have sprayed Round-Up at 1 pint per 10 gallons per acre (=1.6 ounce per gallon). Bermuda that is good and tall barely shows a hint of yellowing. The Johnson grass gets smoked. Do it before the Johnson grass makes a seed head for longer lasting results.
And before anyone says you can only do that in early spring. I record date, and temp. Every time I've done it, the temps were 90° to 100°F.
This will likely kill St.Augustine in a broadcast spray. If the Johnson is in patches, spot spray it. Because of the way Round-Up works, a lot of its effectiveness is dependent upon the the weed being dormant or actively feeding. Droughts cause plants to close their cells, essentially stop feeding. Rain, or watering them a day prior to spraying poison greatly increases the ability of the poison to work. Temp has little to do with it. I had my yard sprayed last week, even though the guy spraying it andI knew it wouldn’t be very effective. But we need to get some poison out before the sprinkler guy showed up. As expected, it wasn’t successful due The the weeds being in a dormant state.
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224801
07/15/18 02:44 AM
|
Joined: Aug 2009
Posts: 22,716
BigPig
THF Celebrity
|
THF Celebrity
Joined: Aug 2009
Posts: 22,716 |
Also, check your waters Ph. It needs to be below 7 for most poisons to work to their full potential. If not, add an ounce of vinegar per gallon until it’s below 7, then add the poison.
|
|
|
Re: Killing Johnson Grass
[Re: Walkabout]
#7224830
07/15/18 03:38 AM
|
Joined: Jul 2006
Posts: 110,795
dogcatcher
THF Celebrity
|
THF Celebrity
Joined: Jul 2006
Posts: 110,795 |
Ya can't SPRAY over another grass. Use a wipe with wicks. The Johnson grass is well above your Bermuda grass. You will be OK This was our method. A PVC wand with a wick that was kept soaked with Roundup. Link with instructions to build one. https://doublebhomestead.wordpress.com/2013/07/21/handheld-roundup-rope-wick-applicator/
Combat Infantryman, the ultimate hunter where the prey shoots back. _____________"Illegitimus non carborundum est"_______________
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7224841
07/15/18 04:17 AM
|
Joined: Dec 2012
Posts: 5,792
MeanGreen85
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Dec 2012
Posts: 5,792 |
Where can you find MSMA? Home depot carried it years ago but doesn't seem to anymore.
|
|
|
Re: Killing Johnson Grass
[Re: MeanGreen85]
#7224882
07/15/18 11:21 AM
|
Joined: Nov 2006
Posts: 4,265
HOF
Extreme Tracker
|
Extreme Tracker
Joined: Nov 2006
Posts: 4,265 |
Where can you find MSMA? Home depot carried it years ago but doesn't seem to anymore. At your co-op. Ask for target 6
Searching the world over for the perfect Chile Relleno.
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7225845
07/16/18 03:29 PM
|
Joined: May 2008
Posts: 4,696
pug
Extreme Tracker
|
Extreme Tracker
Joined: May 2008
Posts: 4,696 |
"My grandfather told me that there are two kinds of people: those who work and those who take the credit. He also told me to try to be in the first group since there was much less competition."
|
|
|
Re: Killing Johnson Grass
[Re: GLC]
#7225970
07/16/18 05:28 PM
|
Joined: Nov 2009
Posts: 91,416
bill oxner
THF Celebrity
|
THF Celebrity
Joined: Nov 2009
Posts: 91,416 |
So what can I spray on Johnson Grass that won't kill Bermuda or St Augustine grass in my yard? Just keep mowing at two to four inches. It will eventually cause the Johnson grass to die off.
Quail hunting is like walking into, and out of a beautiful painting all day long. Gene Hill
|
|
|
Re: Killing Johnson Grass
[Re: pug]
#7226264
07/16/18 08:46 PM
|
Joined: May 2008
Posts: 4,696
pug
Extreme Tracker
|
Extreme Tracker
Joined: May 2008
Posts: 4,696 |
And you can make your own rope wick applicator from PVC and cotton or nylon rope. Just Google "rope wick applicator" and you'll find images from hand-held to tractor-mounted wicking ideas. And whereas repeated mowing will help, it will not get rid of the root system (and jfyi...pulling it by hand in heavily infested areas is a joke as it takes forever, does not affect the root systems, and may actually help proliferation due to aeration of the roots). It will return and it will spread. You've got to do both -- treat the roots (glyphosate) and then keep it cut short and/or pulled. Within a season you'll kill it out. Control Practices To eradicate Johnson grass, control measures must be thorough. Various cultural practices and chemical herbicides will effectively control germinating seed, seedlings, and established plants. Objectives of a good control program include:
Prevent production and spread of seed Destroy seedlings before rhizomes are formed Weaken and kill existing rhizomes Control new infestations as they appear
RECOMMENDED PRACTICES IN NATURAL COMMUNITIES OF HIGH QUALITY
Initial effort in areas of heavy infestation Johnson grass does not infest areas of high natural quality heavily except for the naturally disturbed environment such as along river banks where it is difficult to control selectively. Seed panicles should be cut and removed from the area where practical. Dense patches can be controlled by spraying the foliage with 2 percent Roundup (a formulation of glyphosate). Best results are obtained when glyphosate is applied to plants that are 18 inches tall to early flowering stage.
During this period the herbicide will be most effectively translocated to the roots and rhizomes. Care should be taken to avoid contacting non-target plants, since Roundup is a nonselective herbicide. Do not spray so heavily that herbicide drips off the target species. The herbicide should be applied while backing away from the area to avoid walking through wet herbicide. By law, herbicides may only be applied as per label instructions.
Effort in areas of light infestation Clumps and individual plants may be hand pulled during June, just after a rain when the ground is soft. All plant parts should be removed from the area. Broken stems and roots left in the ground should be dug up if only a small area is involved. It is more effective to spot-treat the individual plants with herbicide than to pull them, and large clumps can be sprayed with 2 percent Roundup using a hand sprayer or backpack sprayer. Herbicide treatment may need to be repeated for several years to ensure good control.
Maintenance control Preferred treatment is hand pulling of individual plants immediately upon discovery. All plant parts, including rhizomes, must be removed. It may be necessary to hand pull a population several times to obtain control. Surrounding seed sources should be eliminated where possible to prevent continual re-invasion.
"My grandfather told me that there are two kinds of people: those who work and those who take the credit. He also told me to try to be in the first group since there was much less competition."
|
|
|
Re: Killing Johnson Grass
[Re: bill oxner]
#7230524
07/20/18 02:23 PM
|
Joined: Aug 2012
Posts: 8,983
General Guts
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Aug 2012
Posts: 8,983 |
So what can I spray on Johnson Grass that won't kill Bermuda or St Augustine grass in my yard? Just keep mowing at two to four inches. It will eventually cause the Johnson grass to die off. This ... Bill knows ...
|
|
|
Moderated by bigbob_ftw, CCBIRDDOGMAN, Chickenman, Derek, DeRico, Duck_Hunter, hetman, jeh7mmmag, JustWingem, kmon11, kry226, kwrhuntinglab, Payne, pertnear, rifleman, Superduty, txcornhusker
|