Good morning!

This is the first time I manage to germinate a dozen of lemon seeds (Citrus x Lemon) and now I have a dozen of seddlings. Actually they are eleven 'cause one of them had die and I suspect about chlorosis.

Half of the remaining seedlings had all the symptoms of chlorosis: leaves getting yellow and pale stem. This is really confusing for me 'cause I use the best substratum for my seeds and it has all the specific nutrients for fruit plants.

I have 2 possible problems that may causes it:

1. In my country regular water supply is really "hard". I mean it has high mineral content (Ca and Mg) so it may "block" the iron for example.

2. Recently I had to fumigate my little apple due a caterpillars attack. I've read that pesticides can cause chlorosis also.

Please, what can I do now to fix this mess?

Thanks for answering!

Maggs