Integrated Pest Management for Raspberries

A Guide for Sampling and Decision-Making for Key Raspberry Pests in Northwest Washington

 

SPUR BLIGHT
Didymella applanata
 

Acknowledgements

Nooksack IPM Advisory Committee

Introduction

Dormant and Pre-Bloom

Bloom/Pre-Harvest

Harvest Period

Post-Harvest

Insect Identification Sheets

Disease Identification Sheets

Fruit and Cane Botrytis

Spur Blight

Yellow Rust

Cane Blight

Phytophthora Root Rot

Tables and Charts

Pesticide Selection

IPM Resources

Pesticides and Water

Infected Canes
Infected cane on the right shows spur light lesions on overwintered raspberry floricanes. Note crackling, silvery color and black pseudothecia, the overwintering stage of this disease.
(Photo courtesy G. Menzies)

Spur Blight Lesions
Mid-summer spur blight lesions on fruiting lateral foliage of raspberry cv. Meeker.
(Photo courtesy G. Menzies)
Wedge-Shaped Lesion
Classic wege-shaped lesion on primocane leaflet of raspberry cv. Willamette. (Photo courtesy P.R. Bristow)

Spur Blight Lesions
Spur blight lesions on primocanes in late summer, cv. Meeker. Lesions are chestnut-colored and infections are associated with base of petiole and adjacent bud. (Photo courtesy P.R. Bristow)

 

 

 
       
 

G.W. Menzies & C.B. MacConnell, WSU Cooperative Extension Whatcom County
June 1998

Funded in part by: Washington State Department of Ecology through U.S. Environmental Protection Agency, Section 319 Funds