A couple of questions. Can you scrape off the white stuff with your fingernail? Does the white stuff ever turn green or blue?
I have grown citrus for many years. At first I thought I knew for sure you had some sort of fungal problem but I have looked at all of my notes and researched online and can find no reference as to a fungal problem with these symptoms. However, back in 1976, many of my oranges and lemons had a similar problem. Mine didn't have a shiny white blemish but more of a cream color. It was caused by the fruits rubbing against something, either each other or a limb. I am fairly certain that the injury happened while the fruits were very small. Not all of my crop was affected, only the very oldest fruits. The only thing I could attribute to the injuries was wind as I had high winds during late spring of that year, about the time the fruits were about the size of walnuts. Perhaps someone else on the forum has had a similar experience and can shed more light on this.No Chuck, the inside of the lemons don't seem to be affected. No unpleasant odor. And I don't consider any of your questions to be silly.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.