Hi,

I have 2 lemon trees.
Both purchased at the same time, the same variety (eureka).

They get the same amount of care and have identical soil and and climate
conditions (full sun and 4 meters apart)

They are 4 years old.

THE PROBLEM
============
One tree is producing plenty of fruit (currently I count 20 lemons). The
other produces nothing.
The dud tree has far less flowers than the other and the flowers bare no
fruit.

Do I replace it?