I noticed that a few areas in my bed of pachysandra have developed dark blotches on the leaves, with some sections appearing ...

It can be scary when your plants are sickly. Some diseases can be managed while others are detrimental, so it's important to ...

Plant diseases occur in most gardens. Many happen on a yearly basis, others sporadically. Why disease occurs often is dependent on weather. In fact, there are three conditions that must exist for a ...

An expert rosarian offers advice on how to block or minimize powdery mildew, black spot, rust and more in San Diego gardens.

It’s not surprising that several diseases on plants are beginning to show up. We have had perfect weather conditions for disease to develop. One of the most common diseases that we see every year is ...

Tomato plants can develop yellow leaves, curling foliage and damaged fruit from nutrient deficiencies, pests, diseases or ...

A study led by researchers at the University of Liège reveals the mechanism by which surfactin, a molecule produced by ...

Seeing yellow leaves on your tomato plants? There are lots of different issues that can cause yellowing leaves. Here's how to ...

“My red rhododendron looks as if it has a layer of ash or white powder on it (above). What should I do?” asks Birds & Blooms reader Steven Graves of Aptos, California. Horticultural expert Melinda ...