The Scotts Turf Builder Crabgrass Preventer is on sale starting at just $30 on Amazon and at Walmart.This crabgrass preventer has been receiving insane reviews from those who use it, like one who ...

Scotts Turf Builder Crabgrass Preventer, $30 (was $39) Courtesy of Walmart. This crabgrass halter is a pre-emergent formula that works at preventing crabgrass, not destroying already grown weeds.