Stopping Mint in Its Tracks. By Scott Aker. August 20, 2008 at 8:00 p.m. EDT. Q I have an herb bed that is being overrun by mint. What was one small plant now occupies a third of the bed.

Gardeners Swear By Bee Balm—Here’s How to Keep It Thriving originally appeared on Dengarden.

Powdery mildew really isn’t something you want to mess with, because not only can it harm the plant its on, but it can spread to others in your garden and infect them too.

Powdery mildew, one of the most easily identifiable fungi, first appears as white spots on plants and then spreads. In some plants, the leaves eventually turn yellow or brown and fall off, leaves ...

Poor air circulation favors mildew, so don’t crowd plants too closely together, she said. If a shrub is a dense tangle of stems, prune it this winter to open it up for better airflow.

Powdery mildew is a widespread and easy to recognize plant disease. There are many types of powdery mildew fungi, but they all produce similar symptoms in plants.

Powdery mildew appears as superficial growth on plant surfaces and is seen as white to gray powdery spots, blotches or felt-like mats on leaves, stems, and buds.

Powdery mildew can affect many other plants including lilacs, phlox and beebalm. A beebalm patch in my home garden has lost all its leaves due to powdery mildew.