Arborvitaes Turned Brown After Power Washing With Bleach Solution

Question From: V. Euell - Toms River, New Jersey, United States
Q: Hello, I have two spiral Arborvitaes whose foliage has recently turned brown. I believe the browning was brought on by a recent power-washing job that contained a bleach solution, but the landscaper has determined that it was my strung holiday lights on the bush that brought on their demise. ( with an added note that holiday lights have been strung on these bushes for the past ten years, as well they were already brown before our recent light stringing) Is there any validity to holidays lights damaging these trees? More importantly, will they regenerate themselves in the spring due to recent damage? Thank you in advance for any professional advise with this matter

A: The newer lights give off little heat. If they did that much damage in such a short period of time they would be a fire hazard and not pass safety codes. Some folks leave these lights on year around. I agree the needles were probably burned by the chemicals. As to whether they will regenerate new growth, it depends on how much damage was done and how severe the weather is this winter. Do be sure they are kept watered until the soil freezes and good luck. Best Nancy and thanks for visiting Yardener.com.