Why Liquid Pre-Emergents Are Hard to Find and Use for Homeowners

Liquid pre-emergents are highly concentrated, requiring precise mixing and even application—pros use calibrated tank trucks. Granular products are "pre-mixed" on inert carriers, easier to spread accurately. Homeowners can achieve excellent control with granulars applied correctly in early March and watered in. Liquids are available but expensive and tricky.

Stick with granular for DIY reliability.