Part one: Diseases on canes and leaves

Spur blight

Imge of an overwintering cane with spur blight.

Overwintering canes.

Spur blight symptoms on raspberry primocanes

Image of primocane with spur blight.

Primocane with spur blight.

Image of cane with spur blight.

Cane with spur blight.

Spur blight symptoms on raspberry primocane.

Spur blight symptoms on raspberry primocane.

Learn more: Ontario Crop Protection Hub

Cane botrytis

Cane botrytis symptoms on raspberry primocanes

Image of two canes inplanting with cane botrytis.

Two canes inplanting with cane botrytis.

Image of cane with cane botrytis.

Cane with cane botrytis.

Cane botrytis symptoms on raspberry primocanes.

Cane botrytis symptoms on raspberry primocanes.

Learn more: Ontario Crop Protection Hub

Cane blight

Image of canes in planting with cane blight symptoms.

Cane blight symptoms.

Image of cane with lesion when bark is scraped away.

Cane blight lesion when bark is scraped away.

Image of cane with cane blight lesion.

Cane blight: lesion.

Learn more: Ontario Crop Protection Hub

Anthracnose

Image of cane with anthracnose lesions.

Anthracnose on stem.

Image of leaf petiole with anthracnose lesions.

Anthracnose lesions on petiole.

Anthracnose disease on raspbery primocane

Anthracnose disease on raspberry primocane.

Anthracnose infection on leaves.

Anthracnose infection on leaves.

Anthracnose on overwintering fruiting cane.

Anthracnose on overwintering fruiting cane.

Learn more: Ontario Crop Protection Hub

Cane gall and crown gall

Early symptoms of crown gall on raspberry canes

Early symptoms of crown gall on raspberry canes.

Crown gall on roots of raspberry

Crown gall on roots of raspberry.

Image of raspberry canes in the winer with cane gall.

Raspberry canes in the winter with cane gall.

Learn more: Ontario Crop Protection Hub

Powdery mildew

Growing terminal with powdery mildew.

Growing terminal with powdery mildew.

Leaf spot

Image of leaves with leafspot.

Raspberry leaves with leaf spot.

Learn more: Ontario Crop Protection Hub

Late leaf rust

Image of underside of leaf with late leaf rust.

Underside of leaf with late leaf rust.

Late leaf rust symptoms on raspberry

Late leaf rust symptoms on raspberry.

Learn more: Ontario Crop Protection Hub

Orange rust (blackberry only)

Orange rust on blackberry leaf

Orange rust on blackberry leaf.

Image of black berry leaf with orange rust.

Blackberry leaf with orange rust.

Image with leaf with orange rust.

Leaf with orange rust.

Learn more: Ontario Crop Protection Hub

Part two: Insect and disease damage on canes and fruit

Fire blight

Image of leaf blacken by Fire Blight inspection.

Leaves blacken.

Image of shoot tips wilted.

Shoot tips wilt.

Image of fruit on cane that are dry and hard.

Fruit may become dry and hard.

Learn more: Ontario Crop Protection Hub

Red-necked cane borer

Red-necked cane borer larvae

Red-necked cane borer larvae.

Image of cane with swelling due to Red-necked Cane Borer.

Larvae tunnel in primocanes, causing swelling and stretch marks.

Image of cane with scraped bark showing spiral tunnel tracks from larvae.

Scraped bark to see spiral tunnel tracks from larvae.

Learn more: Ontario Crop Protection Hub

Snowy tree cricket

Image of cane with zipper like egg laying scar.

Zipper like egg laying scar.

Image of leaf with Nymph of snowy tree cricket.

Snowy tree cricket nymph.

Two-spotted spider mite

Image of leaves with two spotted spider mite.

Stippling on leaves from mite feeding.

Two spotted spider mite damage showing webbing and leaf stippling

Two-spotted spider mite damage showing webbing and leaf stippling.

Two-spotted spider mite damage and defoliation

Two-spotted spider mite damage and defoliation.

Learn more: Ontario Crop Protection Hub

Raspberry cane borer

Image of raspberry shoot with egg laying scar.

Note characteristic double cut around egg laying scar, resulting in wilted shoots.

Image of wilted cane due to raspberry cane borer.

Wilted shoots resulting from egg laying scar.

Symptoms of raspberry cane borer

Symptoms of raspberry cane borer.

Learn more: Ontario Crop Protection Hub

White druplet disorder

Image of raspberry druplet with white druplet disorder.

Solar injury.

Rust

Image of raspberry fruit with rust.

Raspberry fruit with rust.

Anthracnose

Image of fruit with Anthracnose.

Anthracnose damage on fruit.

Learn more: Ontario Crop Protection Hub

Botrytis

Image of fruit with Botrytis.

Botrytis gray mould on raspberry fruit.

Geometrid

Image of fruit with larva.

Geometrid looper.

Image of picked fruit with larva.

Geometrid looper.

Tarnished plant bug

Image of dried up druplets.

Dried up druplets as a result of the tarnished plant bug.

Image of dried up druplets.

Dried up druplets as a result of the tarnished plant bug.

Image of fruit with tarnished plant bug.

Tarnished plant bug on raspberry fruit.

Raspberry fruitworm

Raspberry fruitworm

Raspberry fruitworm.

Image of raspberry fruit worm beetle.

Raspberry fruitworm adult.

Image of fruit with larva.

Raspberry fruitworm larvae feeding on fruit.

Image of raspberry fruitlets.

Adult laying eggs in fruit.

Image of raspberry leaves.

Prebloom shredding of leaves from adults.

Learn more: Ontario Crop Protection Hub

Part three: What causes dead or dying canes

Winter injury

Image of raspberry planting with winter injury.

Canes die back from tips down. Pattern of injury depends on variety and cold exposure. Injury shows up in early spring.

Verticillium wilt

Image of black raspberry canes with Verticillum Wilt.

Black raspberries are very susceptible. Causes canes to wilt. "Bluestem" appearance to infested canes.

Image of canes with Verticillium Wilt.

Canes with verticillium wilt.

Learn more: Ontario Crop Protection Hub

Crown gall

Image of raspberry roots with galls.

Large tumours or galls on roots. Plant vigour reduced but crown gall is rarely fatal.

Learn more: Ontario Crop Protection Hub

Phytophthora root rot

Image of raspbery primocanes with wilt.

Initially, primocanes may wilt.

Image of raspberry planting with Phytophthora Root Rot.

In following season, primocane emergence is poor.

Image of raspberry crown scraped back to show characteristic rust red colour.

Characteristic rust red colour evident in crown tissue.

Image of raspberry planting with Phytophthora Root Rot.

Raspberry planting with Phytophthora root rot.

Phytophthora symptoms in the field

Phytophthora symptoms in the field

Distinct reddish brown discolouration beneath bark

Distinct reddish brown discolouration beneath bark

Learn more: Ontario Crop Protection Hub

Crown borer

Image or raspberry crown with frass and tunnelling.

Evidence of frass and tunnelling in crown tissue

Image of stem split open to show crown borer larvae and tunnel.

Dirty white larvae (caterpillar) present

Raspberry crown borer larvae close-up

Raspberry crown borer larvae close-up

Raspberry crown borer larvae

Raspberry crown borer larvae

Learn more: Ontario Crop Protection Hub