Above: Hosta with symptoms of leaf spots and necrosis. Do your landscape plants have cankers, mosaics, galls, mummies, or witches’ brooms? These and other symptoms are often hard for the average ...

Let’s talk about two of the main classifications of plant diseases — biotic and abiotic — and the differences between them. The term “abiotic” means “without life.” Examples include damage from the ...

Aster yellows disease: You may have heard of this bizarre condition, or, like me, perhaps you’ve seen it in your own garden but didn't realize it was a disease. The first time I saw Aster yellows on ...

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 ...

Researchers from the Hebrew University of Jerusalem have developed an innovative method for the early detection of Fusarium wilt in tomato plants by monitoring subtle changes in the plants' water use.