Neoascochyta species cause leaf scorch on wheat in Australia

Authors

Hossein Golzar, Department of Primary Industries and Regional Development, Western AustraliaFollow
Geoff J. Thomas, Department of Primary Industries and Regional Development, Western AustraliaFollow
Kithsiri Jayasena, Department of Primary Industries and Regional Development, Western AustraliaFollow
Dominie Wright, Department of Primary Industries and Regional Development, Western AustraliaFollow
Cuiping Wang, Department of Primary Industries and Regional Development, Western AustraliaFollow
Monica Kehoe, Department of Primary Industries and Regional Development WAFollow

Document Type

Article

Publication Date

1-2-2019

Journal Title

Australasian Plant Disease Notes

ISSN

1833-928X

Keywords

Didymellaceae, Didymella, Neoascochayta, Ascochyta, Leaf scorch, Wheat

Disciplines

Agronomy and Crop Sciences | Biosecurity

Abstract

A conspicuous leaf scorch of wheat associated with Didymellaceae family was observed on commercial wheat varieties in Western Australia during recent years. Two fungal species isolated from leaf lesions were identified based on morphological characteristics and DNA sequencing. Neoascochyta europaea was isolated from symptomatic leaf lesions on the wheat varieties Trojan and Wyalkatchem also Neoascochyta graminicola was detected on Calingiri variety. Pathogenicity tests were conducted and Koch’s postulates were fulfilled by reisolating of these fungal species. This is a first report of Neoascochyta europaea and Neoascochyta graminicola causing leaf scorch on wheat in Australia.

Recommended Citation

Golzar, H, Thomas, G J, Jayasena, K, Wright, D, Wang, C, and Kehoe, M. (2019), Neoascochyta species cause leaf scorch on wheat in Australia. Australasian Plant Disease Notes, 14 (1).
https://library.dpird.wa.gov.au/bs_research/88