Thanks, i used to use scotts weed and feed with halts, but stopped be because of price.
Scott's and most Weed n' Feeds are loaded with Atrazine herbicide. IMHO most Weed n' Feeds are crappy fertilizers mixed with dangerous herbicides. In other words ..... they are crap!
You'll soon see lawsuits against Atrazine which, unlike Glyphosate, is a real problem
If you use the correct fertilizer, for the specific time of year, for your specific area, you will have good results.
In early spring, once ground temperatures are consistently at 60°F or higher, you should apply a quick release / fast green-up fertilizer with a N-P-K ratio of 3-1-2, like a 15-5-10.
In a few weeks, apply a slow release product, like a 19:4:10, with a slow release nitrogen.
The Bonide Weed Beater Complete granular is a good low temp pre-emergent / post emergent herbicide for early spring application. Use it again in the Fall when it cools down. You can also use Bonide Weed Beater Ultra, in a sprayer, for low temp spot treatment.
Best advice I can give you, is to meet your County Extension Agent and develop a relationship with him / her.
We are blessed in Texas to have the Texas A&M supported "Texas Agri-Life Program. They are a HUGE resource for us.
This is a great lawn program, kinda specific to our area of Texas, but good information for review for your area.
Randy Lemmon
Randy likes Atrazine even less than I do.
The big takeaway is that healthy soil will grow great preferred grasses that will choke out weeds.
Read The Label. The Label is the Law.