Question: We have a large live oak in our backyard, estimated to be over 100 years old. I am working on clearing out the brush that is under the tree. Can I spray commercially available poison ivy ...

Q. Behind our summer cottage are many maples and oaks and to my eye, unfriendly vines climbing their trunks. Maybe the vines are poison ivy? The leaves turn bright red in the fall. Do they do any ...

DEAR NEIL: We have a wooded backyard, and I’ve just discovered that one of our large oaks has a large stem of poison ivy growing up it. It looks like a small trunk in its own right. Is there a spray ...

It was a close encounter in 2012 that made microbiologist John Jelesko take an interest in poison ivy. The Virginia Tech associate professor was cutting up a downed tree with an electric chainsaw.

Recently, after writing about mangoes, I received the following email from Steve Huffman: “It might be worth mentioning that mango sap can cause skin irritation similar to poison ivy. When I was a ...