Working in the garden I spotted what appears to be termites in a retaining wall. There are mounds of saw dust...two places. The pests look like ants. The wall is in decent shape although quite old. I stain it every year. I live in Ontario Canada. Can you recommend a pesticide? Thanks!

I want to buy 8 evergreen trees for my property. I would like the trees to be about 6-7 feet tall as I’m looking to immediately put up a screen between my neighbors house and mine (Good folks, I just like privacy). The trees would be planted on about a 3 foot rise about 40-50 feet from my house thus putting the tops about 9-10 feet high or about one story tall. In my area I’m seeing prices roughly somewhere around 275$ -300$ per tree. But to my surprise it costs another 40-50% to have the trees planted by the nurseries around here. That’s a lot of bucks for planting. I’ve never bought or planted trees before and I do all the labor I can on everything in my house to save money. I’d certainly like to plant these trees myself and save a ton of money and I think it would be more gratifying. But my question is : Is there really a big down side to planting the trees on your own rather than having the nursery plant them? I have heard nurseries guarantee success when they plant – but for the $1,200 I’d save on planting , it seems to me I could afford several failures? Any thoughts would be greatly appreciated!