We've been in our new place for a year now and when we moved in the yard was absolutely hammered. Spurge, crabgrass, oxalsis and dandelions abounded.
I've been using the IFA 4 Step, straight 46-0-0 Urea and Revive. This year I tried out Fertilome Weed Free Zone.
BEFORE:
AFTER:
The Weed Free Zone is the real deal, all of the clumps of dandelions shriveled up within 3 days, it is petroleum based and smells terrible...so you know it's good
It is very concentrated, it has a different mix ratio than usual liquids. It calls for 3oz of killer per 1,000 sgft. It is a general broadleaf killer so you need to be cautious around ground cover.