Arborvitae Leaf Miner

From customer:  If you can see the enclosed image the trees in the middle are draping an turning a different color, it appears to be spreading little by little to the accompanying trees, I checked the soil around them and it appears to be ok, I insert miracle grow sticks in the soil twice a year near each tree. They get plenty of water & sunshine and as you can see well matured. They kind of feel both “crispy” and “soft”, mostly “soft” though.

Tell customer to reach out to their local cooperative extension office and get in touch with a home and garden agent, who will be able to confirm this diagnosis – or provide a more accurate one, as they are the real local experts – and provide a treatment recommendation.

Information on Arborvitae Leaf Miner here: https://www.maine.gov/dacf/php/gotpests/bugs/arborvitae-leafminers.htm