The raining of sap could be an infestation of aphids. These feed on the trees sap using the proteins and other nutrients which are low in concentration and basically poop sugar water. This is why ants are attracted to them. Check in a week or so if these trees start having black twigs which would be sooty mold growing in the sugar water waste. Kevin ----- Original Message ----- From: Shelagh Smith<mailto:[log in to unmask]> To: [log in to unmask]<mailto:[log in to unmask]> Sent: Sunday, June 05, 2005 5:06 AM Subject: [VTBIRD] Sticky Stuff Ruth Stewart writes: My husband theorizes that the trees that have been defoliated are still producing sap/food for the leaves and that is what is floating to the ground. It's unreal. What's happening elsewhere? Here in Leicester, our cars parked under the maples are covered in sticky stuff too, however, there are no tent caterpillars in these trees. It has been "raining" sap for a month now!