Are My Cucumbers Okay?

I bought heirloom seedlings, and looking at the attached photos it looks like the main stem has a webbing as well as the baby and adult cucumbers. I am not sure if this is a disease, or just less resistant…

White pine beetle

My friend has a very mature white pine tree and has recently diagnosed it with a white pine beetle infestation. Is there anything one can do to save the tree?…