Fall pre-emergent timing

Neil Sperry: Fall pre-emergents need to be applied in a three week window from mid August to early September.

Most lawn care professionals (including us): We apply fall pre-emergents from mid September through the end of October.

Mr. Sperry says one thing...and professionals say something else. So who is right and who is wrong?

The answer...both are right!
Mr. Sperry is 100% correct...but so are lawn care professionals.

The difference is the products used by professionals, and the homeowner grade products Neil refers to in his articles.

Here are the two primary differences...