I have a ten foot white pine i just planted in may and now

Question

it is turning brown on the bottom half of the limbs and the very top is brown at the tip of the top. what can i do

Answer 1

add mulch and water more

Answer 2

I like to use a drip system  to keep new transplants good and moist.

If you don't want to do that stick a hose by it and turn it on just to get a tiny trickle.

Answer 3

It sounds like tip blight.

Contact your state's extension office (they usually work with universities) for your local treatment.