Tree watering

[Steven Raymond]

We have an unknown species of tree that's approximately 15 years old and has been problem free since moving in 8 years ago. We've built a floating deck two months ago on one side of the tree which eliminated one lawn sprinkler and the tree is now only receiving water from one sprinkler on one side. We are now seeing the leaves beginning to turn dry and fall. Is the tree drying out due to the lack of water?
The tree is primarily receiving water from a single Toro rotor sprinkler approximately 25 minutes daily at a rate of 5 gpm. Secondary sprinklers that spray the lawn also come within 10-15 feet of the tree trunk and is watering the same amount and time. Their are 4 large potted plants near the tree that provided water runoff from a drip system for approximately 25 minutes a day at a rate of 10 gph. Those plants are between 10 and 20 feet from the trunk of the tree.
We live in Zone 9 in Northern California and the weather is typical for this time of year; 24 hour temperature range has been 65F to 95F for the past few weeks with this week highs touching 100 F. We have not seen rainfall since the middle of May. Thank you all who answer.

Steve

 

[Mad Professor]

I'd give it a hose at it's base a few times a day , a good soaking. See if that helps.

Any chance deck work cut of some roots?

 

[Steven Raymond]

The deck has very little intrusion into the soil and root system. We have a drip irrigation next to it so I can get almost 30 minutes of water to it a day so I'll get some 35gph bubblers at the base.

 

[Mad Professor]

It's better to give a slow heavy deep watering a few times than shallow watering daily.

Pic of tree would help, try to be sure it's not an insect or disease problem.

 

[derwoodii]

yes if can post some pictures it will help us id the tree species and maybe the site needs

 

[Raintree]

What color is the deck?