Hello:
>
> I live 25 due west of Boston.
>
> Have a massive Hemlock in my backyard.
>
> Have just begun to notice that "some" of the needles are turning from green > to orange.
>
> Know nothing about trees, but would sure love to keep this one healthy.
> Can't remember if this happened last year, or in years past; uncertain > about. >
> a. Is this turning of color normal for this time of the year here in the > northeast ?
>
> b. Might it be due to this wooly agelard infestation; would this also cause
> the color change ?
>
> Much thanks,
> Bob
Take a sample to your cooperative extension. Try to select a piece that shows the transition from healthy to diseased/damaged. Wolly adelgid is endemic in the northeast, see any white fuzzy specks?