Reviews

5 star service from time of placing the order to the time shipment was received . Diourn is used on our farm ponds to reduce algae growth and does a great job.

Was shipped the same day. Arrived in perfect condition. 5 stars as always

Great product at a fair price for any application calling for a NIS. Keystone ships promptly and packs everything safely.

Applied this product in an autumn application for a range/wildlife area to control Downy Brome post emergent. Results look satisfactory with minimal damage to established native grass and shrubs/sub shrubs. Will likely follow up with Plateau in late summer as a pre emergent for the rather hefty soil seed bank of Downy Brome present. The goals are fire mitigation and habitat restoration of range lands and wildlife habitat in Western Colorado at 8,500'. Wish me luck. Keystone is tops in service and product selection. I will recommend to other professional applicators.

This product works every time Thats why we use it year after year on our pastures. Also the folks at Keystone are always helpful with any questions I have

Applied in early spring, this product solves our problem with pesky grass burs growing around practice fields and mowed areas that aren't seeded to grass.