Strawberry leaf spot
Small round spots on strawberry leaves with a sharp purple-red border and a pale grey or white centre, which is where the common name comes from. It disfigures a bed and very rarely costs a crop — the plants keep fruiting through it — so the useful thing to know about it is mostly that it is not something worse.
Caused by: Mycosphaerella fragariae · also called leaf spot, common leaf spot, bird's eye spot
Nothing available to a home grower will fix this
No fungicide is worth applying to a garden strawberry bed for this. The damage is cosmetic, the cultivars sold to gardeners vary widely in susceptibility, and clearing the old foliage after fruiting achieves more than spraying does.
source
Sourced guidancemoderate confidence
- Royal Horticultural Society: Strawberry — leaf spot
Checked 2026-08-13
What brings it on
Warm wet weather and foliage that stays damp. It carries over on the previous season's leaves, so a bed left uncleared after fruiting starts the next year with the inoculum already in place.
source
Sourced guidancehigh confidence
- Royal Horticultural Society: Strawberry — leaf spot
- Home and Garden Information Center — Clemson Cooperative Extension: Strawberry diseases — common leaf spot
Checked 2026-08-13
Usually seen: May, June, July, August, September
Preventing it
Ordered by how much difference each measure actually makes, not by how often it is repeated.
- Cut the old leaves off summer-fruiting strawberries after the last picking and clear them away, leaving the crown and the young central leaves. It is the single most effective thing available and it is free.
source
Sourced guidancehigh confidence
- Royal Horticultural Society: Strawberries — after fruiting
Checked 2026-08-13
- Space plants so air moves between them, and water the soil rather than the leaves. The spores need a wet leaf surface to establish.
source
Horticultural consensusmoderate confidence
- University of Minnesota Extension — University of Minnesota: Growing strawberries in the home garden
Checked 2026-08-13
- Replace a bed every three or four years, on fresh ground where practical.
source
Horticultural consensusmoderate confidence
- Royal Horticultural Society: Strawberries
Checked 2026-08-13
Dealing with it once it is there
- Pick off badly spotted leaves and compost them away from the bed. On an established planting that is the whole of the useful response — the plants crop through it, and the disease does not move into the fruit.
source
Sourced guidancehigh confidence
- Home and Garden Information Center — Clemson Cooperative Extension: Strawberry diseases — common leaf spot
Checked 2026-08-13
Widely repeated, and not supported
Recorded so GrowingHQ can address them. These are not alternative approaches — they are things the evidence does not back.
“Spotted strawberry leaves mean the fruit will be infected too.”
Common leaf spot stays in the leaf. Fruit rots on strawberries are grey mould and the various fruit rots, which look completely different and arrive by a different route — a bed can be thoroughly spotted and crop clean fruit.
Horticultural consensusCommonly said, not supportedmoderate confidence
- Home and Garden Information Center — Clemson Cooperative Extension: Strawberry diseases
Checked 2026-08-13
What it affects
On sprays and treatments
GrowingHQ does not tell anyone what to apply, at what rate, or how often. Pesticide approvals differ by country, change without notice, and the product label is legally binding — it is also the document you are holding. What is described here is cultural and physical control, which is what a home grower can act on without a label in front of them.