Integrated Pest Management for Raspberries

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

DISEASE CYCLE OF CANE BLIGHT

Acknowledgements

Nooksack IPM Advisory Committee

Introduction

Dormant and Pre-Bloom

Bloom/Pre-Harvest

Harvest Period

Post-Harvest

Insect Identification Sheets

Disease Identification Sheets

Tables and Charts

List of Key Pests

OBLR Flights

Clay-Colored and BVW Egg Production

Disease Cycle of Botrytis Cinera

Disease Cycle of Spur Blight

Disease Cycle of Cane Blight

Pesticide Selection

IPM Resources

Pesticides and Water

Disease cycle of cane blight, caused by Leptosphaeria coniothyrium. The fungus overwinters on dead floricanes and on floricanes infected the previous season as Psedothecia produce ascospores, and pycnidia produce conidia. These acospores and conidia serve as primary inoculum in the spring. (Courtesy M.S. Ellis; drawing by Cindy Gray)

Acknowledgment: This drawing was reproduced with permission form APS Press.
Source: Compendium of Raspberry and Blackberry Diseases and Insect.

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