I got an email with some pictures a few years ago asking me about magnolia scale, which is a topic I have written about for a number of years. I feel confident the insect was magnolia scale. The ...

If you're not familiar with scale, you've probably seen it and thought it was a disease rather than an insect. When an infestation gets going, the insects can cover an entire branch and look like ...

Q: Everything under one of my large potted plants on the patio is turning black. What isn’t black is sticky. What is wrong with this plant? A: From the pictures you sent me, we know that the black ...