My Lemon Tree leaves falling

Question

I have a question. I’m from Punjab, India. I have few lemon trees in my home garden. The leaves of one of the lemon trees have turned yellow in the last one and a half months and they have dried and have started falling and the whole lemon trees now appears as if it has already died or is dying. I have not noticed any infections of any kind on its leaves or anywhere. The same lemon tree was laden with lemons but suddenly it has turned pale and yellow. Please advise me on this.

Is it cause from overwatering as I was watering it almost daily cause the temperatures here in my place reach up to 46-48 degrees Celsius in the summers, so I was watering them daily. Or it lacks some nutrients and I need to use some fertilizer for it? Please advise, I’ll appreciate your help in this regard.
Thanks

TONY

Answer 1

If it is not in standing water, it is unlikely that it was over watered. In temperatures like that, as long as the tree had good drainage, it would enjoy the extra water.

It is more likely that the tree has either a pest or a fungus. Not all fungus present themselves in an identifiable way, other than yellow leaves. Many pests are hard to see with the naked eye.

I would recommend that you treat the tree with neem oil. This will treat a large majority of pests and fungus that may be affecting the tree.

This article may also help:
https://www.gardeningknowhow.com/plant-problems/environmental/plant-leaves-turn-yellow.htm