My garden is progressivly being taken over with something that leaves silky strands like a spider web....more like guy wires. Some run from my fruit trees to the ground and others from plant to plant. I've looked and looked for eggs, larvae etc. but to no avail. Yesterday I did find one lime-green worm on the soil near a lambs ear but that was it, heel test took care of it. Any ideas as to what it is I need to look for and how to remedy the situation?