Black Spots on Lilac Leaves?

Answer Lilac bacterial blight is a bacterial disease caused by the Pseudomonas syringae pv. Syringae bacteria, and it attacks all types of lilacs, especially those that produce white flowers. This disease... Read More »

Top Q&A For: Black Spots on Lilac Leaves

Black Spots on Tree Leaves?

Trees serve functional and decorative purposes in the landscape. Although homeowners strive to maintain optimum tree health, sometimes they display black spots on their leaves. Also called tar spot... Read More »

Black Spots on Live Oak Leaves?

Live oak leaves should be flat, dark green and healthy. This allows the oak tree to photosynthesize and turn sunlight into energy for processing nutrients and moving water throughout the structure ... Read More »

What happens when a basil plant gets black spots on the leaves?

Your basil plant once looked so healthy, stretching its bright leaves toward the sun, but now unsightly dark spots have taken over. These spots are usually caused by a fungus and can be remedied by... Read More »

Large Black Spots on Maple Leaves?

In the U.S., maple trees are found in the North Temperate Zone in a variety of sizes. Some varieties grow up to 20 feet, while others can grow as tall as 70 feet or more. Maples are deciduous trees... Read More »