Q: The leaves on my houseplant are covered with a sticky sap. There are also small “bumps” on the stems. What is the problem? A: The houseplant may be infested with . These small, inconspicuous ...

Many people have a potted citrus plant or two that they keep indoors during the winter and move outdoors for the summer. It may be one of those dwarf trees that produce full-sized fruit. Or it could ...