Blackberry pests and diseases: how to recognise them
Rubus fruticosus
The pests, diseases and disorders recorded for blackberry in our library, each with a photo and its first symptom. Every page has the full list of symptoms, organic and chemical treatment and prevention.
At a glance
| Problems in total | 5 |
|---|---|
| Pests | 3 |
| Diseases | 2 |
| Need quick action | 1 |
Pests
Raspberry beetleRipe berries with greyish-brown, dried-up patches at the stalk end.Photo: InsektenDoku, CC BY-SA 4.0, Wikimedia Commons
Strawberry blossom weevilFlower buds hang on a partly severed stalk, wither and drop without opening; the female lays an egg in the bud and then gnaws the stalk.Photo: James K. Lindsey, CC BY-SA 3.0, Wikimedia CommonsVine weevilIrregular notches in leaf edges in spring and summer, most visible on thick-leaved evergreens such as rhododendron.Also called: black vine weevilPhoto: Opuntia, CC BY-SA 3.0, Wikimedia Commons
Diseases
Grey mouldOn strawberries, grapes and other soft fruit a soft brown rot, often as the fruit ripens; on gooseberries whole branches die.Photo: Schlaghecken Josef, CC BY 4.0, Wikimedia Commons
Verticillium wiltLower, older leaves yellow first — at the margins and between the main veins — then turn brown and wither; the damage moves up the plant.Photo: Howard F. Schwartz, Colorado State University, Bugwood.org, CC BY 3.0 us, Wikimedia Commons
Which blackberry problems need quick action?
These spread or do lasting harm fast; check the plants and start treatment the day you see them.
- Grey mould: Small black seed-like bodies may form on the infected material.
Plants with many of the same problems
Which plants each problem affects: sources
The links between these problems and the plant were checked against these pages.
- rhs.org.uk/biodiversity/raspberry-beetle
- projectblue.blob.core.windows.net/media/Default/Horticulture/Publications/Strawberry bloss
- ages.at/en/plant/plant-health/pests-from-a-to-z/strawberry-blossom-weevil
- ru.wikipedia.org/wiki/Цветоед_малинный
- rhs.org.uk/biodiversity/vine-weevil
- ipm.ucanr.edu/PMG/GARDEN/PLANTS/INVERT/blvinwee.html
- rhs.org.uk/disease/grey-mould
- ipm.ucanr.edu/PMG/GARDEN/PLANTS/DISEASES/botrytis.html
- rhs.org.uk/disease/verticillium-wilt
- ipm.ucanr.edu/PMG/GARDEN/FLOWERS/DISEASE/verticilliumwilt.html