The causal agent of Cedar Apple Rust is the heteroecious basidiomycete Gymnosporangium juniperi-virginianae. By definition (of heteroecious) this rust fungus require two hosts to complete its life cyc

Cedar apple rust is caused by a fungus but unlike many diseases, this fungus requires two different trees (hosts) to complete its life cycle - a red cedar tree and an apple or hawthorn tree. The patho

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 defolia

There are several cedar-rust diseases that spend part of their life cycle on Eastern red cedar (Juniperus virginiana) and other junipers, and another part of their life cycle on apple, hawthorn, and o

Gymnosporangium juniperi-virginianae Cedar-apple rust infection of fruit, appearance in mid to late season. Rust gall on Eastern red cedar. GYMNOSPORANGIUM2.JPG (32453 bytes) I. Intr

This article was published originally on 4/28/1993 Byline: by Paula Flynn, Department of Plant Pathology During warm rainy days in late April and early May, cedar trees infected with the cedar-app