When it’s summertime and you’re working on a tan, your plants may begin to take on a pale and pasty look. What gives? Say hello to the fungus disease known as powdery mildew.
A common condition found on plant life throughout North America, powdery mildew is characterized by spots or patches of white to grayish talcum-powder-like growth. Fortunately, it is usually more of an effect than a problem itself. In other words, in addition to treating the plant, you’ll probably want to take a look at the surrounding conditions and make some adjustments.
The primary way to keep powdery mildew (and other fungi) from attacking your plants is prevention. Start now.
First and foremost, make sure you give plants plenty of room. Good air circulation goes a long way. Trim plants that get crowded or bushy. Avoid overhead watering and do your watering in the morning so any water that does get on leaves has a chance to dry. If your plants are getting spray from a lawn sprinkler system, try moving the sprinkler a bit further away. If that’s not possible, you might consider replacing your plants with more mildew-resistant plants or varieties.
If you do get powdery mildew, to halt it in its tracks, spray the affected plants with a good fungicide.