Watering is a must to prevent stress during droughts and to help trees resist insect and disease attacks.
(Watering; is; a must to prevent stress during droughts and to help trees resist insect and disease attacks) (a must; to prevent; stress; T:during droughts)
Watering a must
is to prevent
a must to prevent stress during droughts and to help trees resist insect and disease attacks
stress T:during droughts