Can I use Prime Source Meso 4SC Select (Generic Tenacity Herbicide) in conjunction with overseeding this type

Toby from Waterford, Ct writes

Can I use Prime Source Meso 4SC Select (Generic Tenacity Herbicide) in conjunction with overseeding this type of grass?

Looking to overseed with the following blend: Cardinal II Creeping Reed Fescue (25%) Gladiator Hard Fescue (25%) Radar Chewings Fescue (25%) Mazama Kentucky Bluegrass (25%) This grass is expensive, so I don't want to do it if germination will be impacted.

Answer:

According to the product label for Prime Source Meso 4SC Select (Generic Tenacity Herbicide):

The labeled list of tolerant species of turfgrass for this product is as follows:

Kentucky bluegrass (Poa pertensis)
Centipedegrass (Eremochloa ophiuroides)
Buffalograss (Buchloe dactyloides)
Tall fescue (Festuca arundinacea)
Perennial ryegrass* (Lolium perenne)
Fine fescue* (creeping red, chewings and hard) Festuca spp.
St. Augustinegrass* (grown for sod) (Stenotaphrum secundatum) *DO NOT exceed 5 fl. oz. per acre per application to perennial ryegrass, fine fescues, or mixed stands that consist of >50% perennial ryegrass and/or fine fescue.

For any specific product questions not outlined on the product label, you may wish to contact the manufacturer Prime Source directly at 800-247-8013, or via email at info@albaughllc.com. You may also want to utilize your local cooperative extension office for additional questions.