Hi all, got a call from a client that I installed a row of arborvitae for last year. Seem the tips have turned brown. I've noticed many of the evergreen in this area have the same problem and I'm hoping it was just our unusually cold/long winter. The temp here were 15-20 degrees below normal for much of the winter, the coldest winter here in probably 15 years or so. Is this a problem any of you are familiar with or will I be replacing some trees?