Many landscaping enthusiasts switch over to "interiorscaping" mode during the winter months -- we just can't stand to be without plants! But houseplant pests present a major obstacle to our interiorscaping plans. Houseplant pests "multiply very quickly indoors. There are no natural predators to keep the insects in check, so you have to be very diligent about checking for symptoms," advises Marie Iannotti. Let About's Gardening Guide help you with the identification of houseplant pests.