I have moved into a new house and have noticed that the Leyland Cypress have...
I have moved into a new house and have noticed that the Leyland Cypress have have something white on them and the trees are starting to brown out. What are they and how can I control them without using too much pesticide. Thanks for your help.
Without photos, we can only guess what the white stuff is, but a good guess is that you have spittlebugs on your Leyland cypress. These links discuss treatment. http://extension.umd.edu/hgic/spittlebugs-trees-and-shrubs
http://www.emmitsburg.net/gardens/articles/frederick/2001/spit_on_trees.htm If you do not think that you have spittlebugs, send photos. vw