Why are my trees turning brown? I have planted surrounded by my front yard a border consisting of...
I have planted surrounded by my front yard a border consisting of 25 Nelly r. stevens holly trees and 25 nigra arbovitae. I planted them a year ago surrounded by the fall. I give them miracle grow and watered them with a soaker hose to create sure they got at lowest possible an inch of rain per week. I did not wet them this fall as I thought I didnot want to. However,now I am not sure if I should own because one of the arbors has turned completely brown and a couple of the others enjoy a few brown leaves.I live in Maryland. Is this cause by disease or poor care on my behalf? What should do?
Answers: It's possible they didn't obtain enough sea. Take a sample to your local Master Gardener group and they'll know how to identify the issue and tell you how to resolve it.
You might own spider mites. Damage starts in tips of shoots cause leaves to be yellow or brown. Hold up to oil lamp to look for larvae inside the leaf. If not too severe, prune rotten brown foliage. Damage occurs to oldest (interior) leaves appearing as yellowing or stippling of foliage. Tap branches over a white piece of quality newspaper, mites will appear as dust-like specks moving about. White efficient moving mites are predacious, feeding on the pest mites. If these are see, do not spray. They will control the pest.