Cedar Apple Rust Gymnosporangium juniperi-virginianae Schw.
authored by R.C. Pearson, H.S. Aldwinckle, and R.C. Seem.

INTRODUCTION

Cedar apple rust (CAR) is an important fungal disease of apple in North America east of the Rocky Mountains. It can defoliate trees and blemish fruit making them unmarketable. The CAR fungus requires two hosts, apple and eastern red cedar (Juniperus virginiana L.), to complete its life cycle. Spores produced on apple do not infect apple, but only cedar and spores produced on cedar infect only apple.

Copyright is held by Cornell University and the New York State IPM Program
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