One of my evergreen bushes is turning brown on several limbs in front. We're in a drought, but I try to water it every two weeks with muracid or miracle grow. Should I cut off the brown limbs? Do I need fertilizer or to water the bushes more? Also, moss is taking over our yard. Could this be part of the problem? I need to water the yard but my husband won't let me. He says the water is too expensive.