If your lime tree is indoors, the floor under the potted plant may become sticky. Also, honeydew may cause a plant disease called sooty mold. If left unattended, scale insects can cause leaves to ...

My magnolia had a problem with magnolia scale last year. Will it come back, and should I take some action to protect my tree? The leaves were covered in a black mold late last summer. — Frank Butler, ...

Garden staff are finding more scale insects and aphids than in past years. A major infestation of lecanium scale was recently found on a large planting of bald cypress at the Garden. The population of ...

Last month, we notified you that, during winter break, a contractor working for Facilities Management Outdoor Services was going to conduct a broadcast spray application of a dormant food-grade ...

Crape myrtle trees are nearly as plentiful as azaleas in the Rose City, but a new pest threatens their beauty. The pest - crape myrtle bark scale - was first discovered in Tyler in 2013 and is slowly ...

correctionIn an earlier version of this article, the last name of a Smithsonian Gardens arborist was incorrectly stated. He is Jacob Hendee, not Jacob Hender. The article has been corrected. Spring ...