today I foynd some fungus like things in the lemon tree leaves.It is shown in the photo.Please help and suggest which remedy I will take.
Combat With Lemon Tree Disease.
Certified GKH Gardening Expert
This took a bit of research, but I found that your tree is infested with Asian Citrus Psyllid.
This link has more information.
After reading this information, it is important that you report this infestation to your local County Extension Office.
Here is a link to help you locate your closest office.