Fungicides at seeding for management of cereal foliar diseases: powdery mildew in wheat

Authors

Geoff J. Thomas, Department of Agriculture and Food, Western AustraliaFollow
Ciara Beard, Department of Agriculture and Food, Western AustraliaFollow
Kithsiri Jayasena, Department of Agriculture and Food, Western AustraliaFollow
Andrea Hills, Department of Agriculture and Food, Western AustraliaFollow
Jason Bradley, Department of Agriculture and Food, Western AustraliaFollow
Anne Smith, Department of Agriculture and Food, Western AustraliaFollow

Publication Date

27-2-2017

Series Number

DAW00229, GIA00004

Publisher

GRDC

City

Perth

Abstract

Powdery mildew (PM) has become more prevalent in WA wheat crops in recent years and was particularly widespread and damaging in several regions in 2015. A major concern for wheat producers is the susceptibility of several popular varieties, the time of onset of disease requiring early intervention in the cropping season and subsequent concerns over requirements for multiple foliar applications. Trial results from 2015 (Beard et al, 2016) clearly indicate that foliar fungicides can provide effective disease control and subsequent economic returns through reducing yield loss. Anecdotal reports from 2015 indicated that some systemic seed and fertiliser applied fungicides, registered in wheat for a range of fungal diseases, were delaying the onset of wheat powdery mildew. This paper describes results from trials at a range of locations, investigating the efficacy of seed dressing and fertiliser applied fungicides on the time of onset, rate of development and yield impact of wheat powdery mildew.

Disciplines

Agronomy and Crop Sciences | Biosecurity

Recommended Citation

Thomas, G J, Beard, C, Jayasena, K, Hills, A, Bradley, J, and Smith, A. (2017), Fungicides at seeding for management of cereal foliar diseases: powdery mildew in wheat. GRDC, Perth. Report DAW00229, GIA00004.
https://library.dpird.wa.gov.au/bs_researchrpts/5