Wtf, I planted a handful of hemlocks in my yard about 7yrs ago and they've done very well but today I noticed one has a bad case of the Woolly Adelgid. Where the hell did they come from, hemlocks don't grow native really anywhere near here. Luckily I've caught it early and there are only a handful of trees I've planted so I can treat them pretty easily. But still, it's baffling where the heck they came from.