Will these spots kill my plant?

Usually no. Most fungal leaf spots are cosmetic and won't kill a healthy, established Black chokeberry.

Should I use a fungicide?

It is rarely necessary. Good cultural practices like pruning for airflow and cleaning up fallen leaves are much more effective.

Why does my Black chokeberry have spots on its leaves?

Check these first

Inspect the leaves for fuzzy or powdery growth.
Check if the spots are appearing mostly on the lower, older foliage.
Look for signs of poor airflow around the center of the shrub.

Likely causes

Fungal leaf spot
Most likely
How to tell: You will see brown or black circular spots appearing on the foliage. These often develop during periods of high humidity or frequent rain.
What to do: Remove and destroy any infected leaves to stop the spread. Improve air circulation around the shrub by pruning away crowded branches. Avoid overhead watering to keep the foliage dry.
Nutrient deficiency
Possible
How to tell: The spots might look more like yellow or pale blotches rather than dark fungal lesions. This often happens if the soil pH is too high for the plant.
What to do: Test your soil pH and aim for a range of 5.5 to 6.5. Apply a balanced fertilizer designed for acid loving plants in the early spring.

When to worry

It is serious if the spots cover more than half the leaf surface or cause premature leaf drop. Minor spotting is common in late summer and usually does not harm the plant's long term health.

Stopping it coming back

Water at the base of the plant rather than over the leaves, and keep the area under the shrub clear of fallen debris.

Not sure which one it is? Photograph your black chokeberry.

This page lists the usual causes. Pocket Botanist looks at your actual leaf and tells you the likely cause, how serious it is, and what to try first. Identification and a health check are free.

Get the app · Or check it from a photo now, free

Questions people ask

Will these spots kill my plant?: Usually no. Most fungal leaf spots are cosmetic and won't kill a healthy, established Black chokeberry.
Should I use a fungicide?: It is rarely necessary. Good cultural practices like pruning for airflow and cleaning up fallen leaves are much more effective.