How to Kill Poa Annua in Lawns
Doc discusses how to treat the poa annua in your lawn as well as how to kill off your ryegrass overseed. There are several products to chose from but not all work the same or are mixed the same. This lawn treatment needs to be done before the transition of Bermuda lawns from winter to spring. Make sure you read and follow labels.
Article About Killing Rye
→ Article about killing rye grass in Bermuda turf.
Products for Killing Poa Annua
Image Herbicide?
It’s best to visit a local retailer and purchase your Image. It seldom is in stock on Amazon and the cost is greater.
The Backpack sprayer that Doc now uses.
Folding Thermometer Used
Negate herbicide for poa annua.
For use on: bermudagrass and zoysiagrass
Kills or controls: Poa Annua, Poa Trivialis, Ryegrass, Bentgrass, Clovers, Dandelion, Henbit, Chickweed, Wild Onion & Garlic, Spurges and others (see label)
Certainty herbicide
Only for use on WARM SEASON LAWNS – Bermudagrass (common or hybrid), Bahiagrass, Buffalograss, Centipedegrass, Kikuyugrass, St. Augustinegrass, Seashore paspalum, and Zoysiagrass.
KILLS or Controls: Purple Nutsedge, Yellow Nutsedge, Globe Sedge, Annual Sedge, Tall Fescue, Annual Bluegrass (Poa Annua), Barley (little), Bedstraw, Bentgrass, Bluegrass, Burweed, Buttercup, Chickweed, Clover, Crowfootgrass, Dandelion, Garlic (wild), Geranium, Henbit, Ivy (ground), Johnsongrass, Mustard (wild), Pennycress (wild), Quackgrass, Ryegrass, Shepherds purse Supresses Dallisgrass in Bermudagrass. Supresses Buttonweed
The granular pre-emergent below is available in both 18 and 50 lb bags.
HUMICHAR
Should be applied to ALL LAWNS AND ALL GRASSES.
Liquid Spray Dimension
PGF Balance 10-10-10
Bermuda Lawn Guide
Spring Preemergent Zone Map
Hi, I have a quick question regarding your video.
Just want confirm that I should do the liquid pre emergent before the granular pre-emergent?
Only if you have a HUGE amount of poa annua. Otherwise stick to the guide.
https://www.bermudalawnguide.com/
I have a lot of weeds and can not spot treat.. Can I put down liquid post emergent and granular pre emergent at the same time?
Yes
Hi Doc, Do you think using Negate and Image together is an overkill?
Probably so. Just be patient with them.
I’m thinking about doing a flame scalp on a section of my Tif bermuda lawn this year. When I scalp, i never get the dead sprigs all gone and they show all year thru the green grass. I use a Toro 1000 mower set to cut at .750″. I would like to know if I will damage the grass if I do this now while it’s completely dormant.
No it won’t hurt the grass, but will leave the lawn nasty and you could cause a big problem if it gets out of control.
Should you dethatch your Bermuda lawn on a yearly basis, or is it enough to scalp it?
We never dethatch bermuda
Hey Doc,
I heard you say in your video that you never dethatch a bermuda lawn but you never really explained why. I understand you don’t dethatch if the yard doesn’t need it of course, why else would you not dethatch? thx
No need really. Plus you can damage the runners that are everywhere.
I have some po annua but only in small spots and not too much, thanks to the pre-emergent last fall!
Could I just spot treat with glyphosate while my bermuda is still solidly dormant? (in the Charlotte, NC area)
Hey Doc! Thanks for these great videos! I just got some DIMENSION at your recommendation and I am looking for the best way to apply. I see several different rates per the label instructions. I have an ORTHO DIAL-A-SPRAY and I could get a back pack sprayer if need be. I am just trying to figure out the rate. It seems that if I mix the .73 oz per 1000 SQ FT so long as I use the whole amount of mixture that I make, on the 1000 section, it will have the same result. Is that your understanding or… Read more »
So you say your spray bottles are 20 to 1 but the product you recommend, Image, calls for 4 tablespoons to a gallon which is .031 ratio which is less than your bottles 20:1 or a .05 ratio. Am I missing something?
Hello Doc, Really enjoy all your videos. You taught me a lot. I was never a lawn nerd then I started watching your videos and now I’m like the “go to” guy in my neighborhood.. lol.. imagine that. In regards to PoA.. wondering what your thoughts on Simizine- Princep (Group 5) to add to my fall pre emergent cocktail of Prodiamine and Dimensions (Group 3)..to prevent the Poa in the first place. I’m also going to used Kantana (Group 2).. but probably to expensive for the ave homeowner. I going to use 3 types of MOA.. modes/ sites of action… Read more »
How can I treat post emergent poa annua?
Searched ‘kill bahia grass’ and got this page. Trying to let Bermuda grass take over. Lawn currently has a number of pockets of bahia grass. Any suggestions beyond just dig it out? Zone 8 just south of Raleigh NC
hi Doc
how to get rid of Quack grass in cool season area ?
Is it ok to use these post emergents at anytime of the year / soil temp?