Diseases

Bacterial canker

Identify Bacterial canker: symptoms, possible causes, prevention, and practical actions for 6 affected plants. Small, dark spots on leaves that later tear…

Affected plantsDiseases

Bacterial canker is relevant across 6 plant profiles on Wild-Wuchs. In the data it is most often linked with Apricot, Kiwi, Mulberry, Sour cherry, soybean. Typical signs include: Small, dark spots on leaves that later tear out. Small For gardeners, early diagnosis, suitable growing conditions, and gentle action matter most: Avoiding injuries

Plants

6

Category

Fruit, Legumes

Risk

medium

Synonyms

Bacterial Blight, Bacterial blight, Bacterial canker (Xanthomonas arboricola pv. pruni), Bakterienbrand, Pseudomonas-syringae, bacterial blight, pseudomonas-syringae

Scientific name

Pseudomonas savastanoi pv. glycinea, Pseudomonas syringae pv. morsprunorum

Overview

Symptoms

  • Small, dark spots on leaves that later tear out. Small
  • dieback of young twigs
  • Gummosis (oozing of sap) from bark cracks

Damage

Bacterial disease affecting leaves, shoots, and fruits. Causes spots, bark necrosis, and fruit deformities.

Prevention

  • Avoiding injuries
  • Careful pruning
  • Good site selection

Organic control

  • Remove infected plant parts. Copper-containing sprays in autumn and late winter/early spring
  • plant strengtheners
  • Prune affected branches back deeply

Affected plants

ApricotKiwiMulberrySour cherrysoybeansweet cherry

Guides

Related guides

Garden guides

Similar topics

Monilia blossom wiltDowny mildewGray moldLeaf spot diseaseLeaf spot diseasesMonilia Fruit RotPowdery mildewRoot rotVerticillium wilt

FAQ

How do I recognize Bacterial canker?

Small, dark spots on leaves that later tear out. Small

What causes Bacterial canker?

Causes often relate to site conditions, weather, care, plant density, or pest pressure.

How can I prevent Bacterial canker?

Avoiding injuries

What helps against Bacterial canker?

Remove infected plant parts. Copper-containing sprays in autumn and late winter/early spring

Which plants are affected?

Apricot, Kiwi, Mulberry, Sour cherry, soybean, sweet cherry

When does Bacterial canker usually appear?

Timing depends on plant, weather, and growing conditions; check regularly during stress periods.