Killing Poa Annua in Lawns

lawn care products

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.


Should be applied to ALL LAWNS AND ALL GRASSES.

Liquid Spray Dimension

PGF Balance 10-10-10 


Bermuda Lawn Guide


Spring Preemergent Zone Map

More information and Products

Notify of
Newest Most Voted
Inline Feedbacks
View all comments
Rich Lewis
Rich Lewis
22 days 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?

21 days 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
21 days ago
Reply to  admin

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

Steve Wood
Steve Wood
21 days 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.

21 days ago

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

Chris Kitchens
Chris Kitchens
17 days 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