Fertilizer/Pre-emergent Herbicide Application

We made our spring and summer fertilizer/pre-emergent herbicide application this week.  The herbicide is impregnated onto the fertilizer granules so that both products may be spread together.  The herbicide that we used is called Ronstar(oxadiazon).  It is a very effective herbicide that targets annual grasses and broadleaf weeds.  It controls weeds through the shoots, not the roots and therefore is not harmful to the roots of turfgrasses, like many other pre-emergents are.

The fertilizer that we used contained some quick release nitrogen to give the grass a jump start as well as a controlled-release nitrogen to spoon feed the grass throughout the summer.  The controlled-released fertilizer that we used is called Polyon.  The video below explains how Polyon works.

 

The bulk of the application was spread by Harrell's, the supplier of the product.

We followed up around greens and other areas that the truck could not get with push spreaders.

Following the application, the product was watered in thoroughly to release the pre-emergent into the soil and create the barrier for weeds.  The barrier should last us until the fall.