Avocado tree leaf curl & dried leaf tip. What is the cause?

[dancing_auntie]

A single avocado tree that I'm growing is having the following symptoms at the same time. Any knowledge and advice about it would be greatly appreciated. Thanks.

 

[Marck]

These symptoms on your Avocado (Persea americana) likely indicate a soil moisture issue, possibly either underwatering or overwatering. What is the the current irrigation, precipitation, and soil moisture conditions for this plant?