The mottled appearance on any indoor plant leaves is a sure sign of a spider mite infestation, even in the absence of webs. Hedera ivies are usually small enough to treat the mites effectively in your kitchen sink. Fill it with water and a squirt of liquid dish soap. Then, invert the plant, holding it so it doesn't fall out of the pot and swirl all of the leaves and stems around in the solution for about 30 seconds. This guarantees complete coverage, which is key to effective treatment of spider mites.
