Herbicides:

An Introduction

Generally, there are two kinds of herbicide:

I. “Pre-Emergent” Herbicides

These herbicides prevent germinating weeds before they start sprouting:

a) Need to be applied several weeks before the weeds start to germinate.

 b) A common ingredient in pre-emergent herbicides is, believe it or not, a by-product of corn syrup production (You will often see corn gluten in the list of ingredients).

c) Another common type of pre-emergent weed killer is soap-like fatty acids that dry-out any weeds.

NOTE:  Both corn gluten and fatty acids are completely safe for pets & children.

II. “Post-Emergent” Herbicides

These herbicides kill weeds that are already growing.

Post-Emergent herbicides come in four major sub-categories:

a) Systemic – The weed will absorb the herbicide, killing the plant slowly — but surely!

b) Non-Selective – This herbicide will kill virtually any plant it touches – Make sure to avoid your prize rose or tomato plants!

c) Select – Kills only certain types of weeds.

d) Contact – Kills only that part of the plant the herbicide comes into direct contact with. 

If you would be interested in an application of weed control for your lawn, and you live in either Broomfield, Erie, Superior, Arvada, Westminster, or Thornton, contact Olson Lawn Care at 720.201.7561 or email us at olsonlawnservicesllc@gmail.com