Image Herbicide for St. Augustine Grass and Centipede Grass kills many tough weeds such as dollarweed, poa annua, sandspur, and Florida betony. The active ingredient atrazine begins killing weeds on contact by preventing them from being able to absorb energy from the sun, essentially starving them to death. Visible results can be seen within 1 to 4 weeks. It can be applied during dormant as well as growing seasons for post emergent and pre emergent weed control but best results usually occur when the product is applied in the early spring or during dormant periods when the weeds are small or have yet to emerge.
Application should be made only with a conventional compressed air garden sprayer equipped with a flat fan spray tip. Correct calibration of the sprayer is essential or severe plant injury could occur.
This product may be applied during both dormant and growing season
During dormant season, rainfall or watering is necessary within 7 to 10 days after treatment to control seedlings
During the growing season, best results are usually obtained when applied in early Spring
Rain or water within 2 or 3 days of application may decrease the effectiveness on emerged weeds Applications during the summer should be limited to spot treatment only Do Not apply more than two treatments per year Do Not apply if temperature is over 90 degrees Do Not apply under windy conditions Do Not allow people or pets to enter the treated are until it is dry
Sprayed earlier this year and had much better results. It does take a couple of weeks to work but did a good job eliminating weeds in select areas of my lawn and did not kill the new sprigs of centipede and St. Augustine that started sprouting about a week later. I think it is going to take a couple of years to eliminate most of the weeds but very easy to use and I did not expect 100% weedfree in the 1st yr. anyway.
The winter has been very mild in southern Louisiana and the weeds are starting to sprout new growth so I applied in late January. I carefully mixed and applied one of the two bottles I bought, two weeks later, the only thing in my weed-infested that even looks unhealthy is an azelia bush.
I'll try the other bottle I bought on a different area in a couple of weeks, I hope I'll be resing this review then.