If you’re looking for a version of prodiamine that you can spray then this is what you need. This bottle will last you a VERY long time for most homeowner lawns or if you have a larger property this is also the way to go.
Also available on Amazon
For more info on application, check out this video.
If you're looking for a granular pre-emergent option then I like this one as it has a small prill size for great coverage and technology included that helps to dissolve the granules quickly when they are watered in. Also available on Amazon For more info on application, check out the video.