Garden columnist Dan Gill answers readers' questions each week. To send a question, email Gill at [email protected]. Something is happening to my tomato plants. The foliage looks unhealthy, and I ...

Q: I have a bougainvillea that’s been growing in my big south-facing window for 45 years. Occasionally, it gets aphids and more recently red spider mites. Though I have used a systemic on occasion, my ...

Crape myrtles are commonly attacked by crape myrtle aphids. This often leads to a black fungus, called sooty mold, forming on leaves and branches in mid- to late summer. Control these insects by ...