Ladybugs and Aphids

Several years ago when we were still in Hartley, I went out to get in the van and it was covered with what looked like clear Karo syrup. I had no idea what it was. Our van sat in the driveway under a fairly large black walnut tree. But what in the world was that sticky substance? Was it something from the tree?

I wasted no time getting to the car wash and then I called the garden center in Spencer. He had the cause right on the tip of his tongue.

"You have aphids and the syrup is their honeydew, their poop if you will," he said.

Oh, that was wonderful.

"What can I do about it? Is there anythin...