Question

leaves having spots.   QUESTION: Dear sir,
     i am living in Punjab state in India, my lemon tree's leaves are developing yellow spots and in very short period this spot grows and covers all the surface of leaf to make it dry and fall down. leaving with less production of fruits.
this happened last year as well.
earlier this tree was absolutely healthy.
   please suggest the remedy for my lovely tree. please sir this tree is my birthday gift so i love it very much and don't want to cut it down.
Thanks.
Monika.

ANSWER: Hi Monika:

Based on your photo, the brown areas do not appear as an infectious plant disease that may be caused by a living organism.  These areas resemble some type of physical/chemical type of injury to the leaves in your photo.  Review any chemicals etc. that may have been sprayed or otherwise come in contact with the leaves.  Sudden changes in light or temperature may also cause this to occur.  Time to do a bit of detective work and think about the history of the appearance of these spots.

Hope this helps

Steve

---------- FOLLOW-UP ----------

QUESTION: Dear sir,
  there was no spray used on the tree as i want to get the fruit without any chemicals.Offcourse sudden rise in temperature occurred in last 1 week. i am still not able to find any substantial remedy for the same,please help to save my tree.
Thank you sir once again for taking pains in saving my tree.
Monika.

Answer
Monika:
Thanks for the information. I feel that the leaf "blotches" are not related to a contagious thing.  If the plant's leaves were subjected to an increase in light, this may sometimes cause an injury. Sometimes changing the location of the plant or exposing previously shaded leaves to intense sunlight can give them a "sunburn". If feasible, remove those affected leaves if there are just a few, then watch as new ones form to see if they become affected.  Be sure to maintain good soil moisture w/o excesses.  If light is not an issue, you may need someone to see the actual plant.  If possible show it to your local garden center staff for their thoughts. Many times these folks may have seen something like this before and can offer a suggestion.

Regards
Steve