Best Pre-emergent treatment after bitter cold

If there was ever a time to use Ronstar, this is the spring to do so.

The cold weather could cause extensive root damage.   Conventional pre-emergents tend to be root pruners, thus weakening your root system.   Ronstar is not a root pruner and is better to use during extreme weather conditions.

Apply Ronstar mid-march for best results.  The benefits will outweigh any additional cost in my opinion.