Abstract:

Rust of Sambucus williamsii and hyperparasite of the rust were found in Fengtong Zhai national nature sanctuary area. The pathogen was identified as Aecidium sambuci. The hyperparasite occurred on lower leaf surface rust spot. The characteristics of hyperparasitism was henna powdery. The hyperparasite live on aecium of A. sambucii and hinder the releasing of aeciospore. The hyperparasite was identified as Tuberculina sp.. This paper reported the symptom of the rust and the morphological characteristics of the rust pathogen. The hyperparasitism of A. sambuci and the morphological characteristics of the Tuberculina sp. Were also reported.

Key words: Elder, rust, hyperparasite