Lemon Tree Problem
I'm new to the forum and glad to be here. I was inspired to join because of a very sick lemon tree. The photo I attached is an extreme version of the prob. I have more photos available on my Flickr acct here.
When we first moved in two years ago, the lemons were very tasty and I didn't notice anything wrong in appearance. I THINK they are "Eureka Lemons" after Googling varieties a bit. This past summer, the lemonade began tasting really weird, and I noticed the lemons seemed to have bruises on the inside. I thought it was old fruit on the tree, so didn't fret but now the tree's leaves are affected; curling and dirty and even the new lemons still taste bitter and awful.
I obviously need to treat it - any idea with what? It gets a LOT of water (maybe too much?), and I've fertilized once with something for citrus from the nursery (I can't remember what but it wasn't Miracle Grow). In Googling, I saw something about Boron depletion that reminds me of what I'm seeing but I don't want to kill my tree because of Google. I'm new to citrus tree care, so all advice is appreciated.
Thank you in advance!
Here is a link that might be useful: Sick Lemon Tree