Help! found white powdery scale and webs on lime, lemon tree.
Was just pruning the suckers off the bottom of my lime bush and found what reminds me of powdery mildew and tiny webs along the stems. I then inspected other trees and see this on my young Shamel ash and lemon tree. I also saw ants racing up and down the trunks. Came in an looked up scale. Went back out and applied Amdro ant bait not far from the trunks of all said trees.
I see a tiny bit on my huge grown ash trees but they seem unaffected..... what else should i do?