As the infection takes hold, the spots grow and the centers of the spots turn pale gray, while their borders take on a red, brown or purple color. In the middle of the pattern, you may see small black ...

If your once beautiful hydrangea is sporting speckled foliage, you’re not alone. A frustratingly common occurrence in late summer and fall, brown spots on hydrangea leaves usually indicate that the ...

Gray leaf spot is a widespread fungal disease in corn, responsible for a 23-million-bushel yield loss in the U.S. in 2024. 1 The challenge with controlling gray leaf spot isn’t just deciding whether ...

We love the vibrant colors of maple trees in the fall. These deciduous beauties bring not only great color but also a recognizable leaf shape and (our favorite) whirlybird seeds that helicopter their ...

Beech leaf disease is out there once again, decimating beech trees in Massachusetts, as it has in the past. It's a relatively new tree disease, which first appeared in 2012 in Ohio, and has since ...

Cercospora leaf spot (CLS), caused by the fungus Cercospora beticola, continues to challenge sugar beet production across global agricultural landscapes. The disease, which detrimentally affects ...