How long ago did you use the fabric? I was trying to figure out if was going to be something I regretted later. Regarding the mulch, are you removing and replacing each year or just adding more on top?high leverage said:fabric, cedar or pine bark mulch, and Preen for me. Preen can be used in mulch, I don't think the normal Pre-m we use for lawns would work very well in mulch most need soil contact to be effective.
Exactly. Although the other version contains trifluralin.Ware said:Preen Southern Weed Preventer is just Dimension (Dithiopyr).
I already have prodiamine and simazine on-hand and would prefer to use something I have if it will safely do the job.
According to the label for simazine, it's friendly for use in ornamental plantings and specifically lists arborvitae, but not ligustrums or loropetalum.
For prodiamine, the label lists several ligustrums, one type of arborvitate / thuja occidentalis, and one type of loropetalum.
By comparison, oxadiazon lists ligustrum spp., thuja spp., and nothing on loropetalum.
One way to find out what works! Just figured I'd solicit input before finding out the hard way.