Had 5 12' Leyland Cyprus trees planted last year. They're spaced
about 10' apart from one another. They originally had an issue where
they were turning brown and it turned out to be shock. During the
late summer, early fall they started turning green and looked healthy.
Now, they're turning brown again...I originally thought it was some
kind of winter burn...but they're getting worse. One thing we did
notice was a small (about 1/2" long) green worm on one of the leaves
(can't find anymore). Could this be a problem? What are they and can
they cause our trees to start browning? Any other ideas? (Oh, we
live in NJ).

Hi Mike,

You might want to check with your local extension service as to what might be active in your area.
http://www.rcre.rutgers.edu/garden/

Newt