Improved Meyer Lemon: edges of leaves turning yellow (Pics)
Last year we planted our Improved Meyer Lemon Tree and it seemed to be doing very well until recently. We live in Orange County, CA, close to the beach. It gets sun most of the day and we are currently in the middle of summer.
Now, we have many leaves that are turning bright yellow from the edges inward. I have fertilized regularly since planting (Lilly Miller Cirtus & Avocado food). I also spray for spider mites and greasy spot every 2-3 weeks. The tree is planted in a garden that receives 3 minutes of watering every morning however a month ago, I noticed that some of the tree's leaves were curling slightly so I made sure to divert the tree's sprinkler ahead away from the tree. The surrounding plants still receive 3 mins of water each morning. Can anyone offer some help as to what is causing the yellowing leaves? I REALLY want to fix the issue before major damage occurs. Thanks!