Killing Poa Annua in Lawns

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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

→ BERMUDA LAWN GUIDE

Spring Preemergent Zone Map

More information and Products

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Rich Lewis
Rich Lewis
3 months ago

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?

Crystal
Crystal
3 months ago
Reply to  admin

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?

Rich Lewis
Rich Lewis
3 months ago
Reply to  admin

Hi Doc, Do you think using Negate and Image together is an overkill?

Steve Wood
Steve Wood
3 months ago

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.

Ari
Ari
3 months ago

Should you dethatch your Bermuda lawn on a yearly basis, or is it enough to scalp it?

Chris Kitchens
Chris Kitchens
3 months ago

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

TRG
TRG
2 months ago

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)

Jason B Oakes
Jason B Oakes
2 months ago

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 »

Last edited 2 months ago by Jason B Oakes
Ric TX
Ric TX
2 months ago

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?

Doc Disciple
Doc Disciple
1 month ago

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 »

Last edited 1 month ago by Doc Disciple
Nick
Nick
20 days ago

How can I treat post emergent poa annua?