Good morning We were advise by customerserviceof robertsinc that you may be able to help. We purchased a patio lemon entree approx. a month ago and it is now showing brown spots on the leaves. How do we get ride of them. Does this mean the plant is dying? We live in EL Mirage AZ, right now the temp. Is 100-110. Ant help would be appreciated Thank you Pam Antaya