Mycosphaerella ambiphylla sp. nov. (anamorph: Phaeophleospora) and Mycosphaerella aurantia sp. nov., are described from diseased Eucalyptus globulus leaves. In addition, a new fungal record in Australia, M. mexicana, and two new records for Western Australia, M. gregaria and M. parva, are discussed. A key is provided to Mycosphaerella species on E. globulus in Western Australia.

The Sigatoka disease complex, caused by the closely-related Dothideomycete fungi Pseudocercospora musae (yellow sigatoka), Pseudocercospora eumusae (eumusae leaf spot), and Pseudocercospora fijiensis (black sigatoka), is currently the most devastating disease on banana worldwide. The three species emerged on bananas from a recent common ancestor and show clear differences in virulence, with P. ...

This project was conceived in response to the rapid decline in banana (Musa) production experienced in Kenya over the last two decades. The decline was brought about by: infestation with Panama disease or Fusarium wilt caused by Fusarium oxysporum f. sp. Cubense (FOC); Black and Yellow sigatoka leaf spot caused by Mycosphaerella fijiensis (Morelet) and Mycosphaerella musicola (Leach) respective...