Abstract

Apple powdery mildew (Podoshphaera leucorticha) occurs wherever apples are grown. One of the most important fungal disease of apple which causing severe econimic loss on susceptible apple cultivars. Biology of the pathogen is widely investigated all over the world in the past 100 years. In this review, a summary from this enormous research is made for biology of apple powdery mildew in the following aspects: geographical distribution, morphology, taxonomy of the causal agent, symptoms, host susceptibility, resistance durability and disease cycle.

Highlights

  • Apple powdery mildew (Podoshphaera leucorticha) is a wordwide known fungal pathogen of apple

  • The aim of this review was to prepare a summary for biology of apple powdery mildew including geographical distribution, morphology, taxonomy of the causal agent, symptoms, host susceptibility, resistance durability and disease cycle

  • Powdery mildew occurs wherever apples are grown. It can be both major and minor importance of the disease in commercial orchards but it is an important disease in apple nurseries worldwide (Hickey & Yoder, 1990)

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Summary

Introduction

Apple powdery mildew (Podoshphaera leucorticha) is a wordwide known fungal pathogen of apple. A key important fungal disease of apple which causing severe econimic loss on susceptible cultivars in every years where apple are grown (Hickey & Yoder, 1990). Biology of the pathogen is widely investigated all over the world in the past 100 years. Thousands of publications were aimed to investigate the pathogen features and to understand biology of this disease in order to improve powdery mildew forecasting and disease management. The aim of this review was to prepare a summary for biology of apple powdery mildew including geographical distribution, morphology, taxonomy of the causal agent, symptoms, host susceptibility, resistance durability and disease cycle

Geographical distribution
Host susceptibility and durability of resistance
Susceptibility to powdery mildew
Findings
Disease cycle

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