Lemon tree issues

[Domenic]

Hi long time reader, first post though. Had lemon trees all my life just got a new property thought I would plant 2 trees one eureka and one lemonade lemon tree, the lemonade is thriving no issues very green leaves the eureka having issues just yesterday it started getting brown spots on the leaves that's quite large now (Pics attached) the tree is about 2 months old gets about 9hrs direct sunlight. Any suggestions?

 

[Chuck]

Hi long time reader, first post though. Had lemon trees all my life just got a new property thought I would plant 2 trees one eureka and one lemonade lemon tree, the lemonade is thriving no issues very green leaves the eureka having issues just yesterday it started getting brown spots on the leaves that's quite large now (Pics attached) the tree is about 2 months old gets about 9hrs direct sunlight. Any suggestions?

On the second picture under magnification you will see what looks to be sooty mold. The first picture doesn't show this but does show some of the results. I strongly suspect that you have aphids

 

[Becky]

Welcome to the forum @Domenic

Are both trees in the same place with the same conditions?

 

[Vinaya]

I have lime and lemon trees in my backyard.In my experience sometimes it is ok to have that kind of symptoms on your plant. However, if it is growing perennial, you must take this seriously. Spray some insecticides o the leaves.

 

[Corzhens]

I think there is a pest that's causing the brown spots. Sooner or later those affected leaves will wither and die. It happened to one of our lime trees that we had neglected in spite of noticing the brown spots. My husband thought it just lacked water so he instructed our housemaid to irrigate it regularly. Unfortunately, the brown spots had spread to all the leaves that caused the demise of that lime plant.

 

[Domenic]

Welcome to the forum @Domenic

Are both trees in the same place with the same conditions?

That's correct same place 3m apart, I did put some seasol on them before it happend could of that affected it?

 

[Becky]

That's correct same place 3m apart, I did put some seasol on them before it happend could of that affected it?

I wouldn't have thought so... unless perhaps you got some on the leaves?