Apple Cedar Rust

Interactive Java Tutorial
ATTENTION
Our servers have detected that your web browser does not have the Java Virtual Machine installed or it is not functioning properly. Please install this software in order to view our interactive Java tutorials. Visitors using the Netscape and Microsoft Internet Explorer browsers can download the appropriate software from the websites where the browsers are distributed. Please do not contact us for information about specific URLs where this software can be obtained.

The CAR fungus has a complex life cycle that requires two hosts, eastern red cedar trees and apple or crab apple trees. Throughout its two-year life cycle, the fungus produces three kinds of spores: aeciospores, teliospores, and basidiospores, each with a specific function. Spores produced on the apple trees do not infect other apple trees. Only the spores produced on cedar trees can infect apple trees. Likewise, only the spores from apples can infect cedar trees.