Austral Entomology (2020) 59, 238-252

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Samantha Ward, Maarten van Helden, Thomas Heddle, Peter M. Ridland, Elia Pirtle and Paul A. Umina (2020)
Biology, ecology and management of Diuraphis noxia (Hemiptera: Aphididae) in Australia
Austral Entomology 59 (2), 238-252
Abstract: The Russian wheat aphid, Diuraphis noxia (Mordvilko ex Kurdjumov), is one of the world's most economically important pests of grain crops and has been recorded from at least 140 grass species within Poaceae. It has rapidly dispersed from its native origin of Central Asia into most major grain-producing regions of the world including Africa, Asia, Europe, the Middle East, North America and South America. Diuraphis noxia was first found in Australia in a wheat crop in the mid-north of South Australia in May 2016. Since then, D. noxia has been recorded throughout grain-growing regions of South Australia, Victoria, New South Wales and Tasmania. The distribution will continue to expand, with climatic suitability modelling suggesting D. noxia can persist in all key grain regions, including large parts of Western Australia and Queensland. Australian populations of D. noxia appear to be anholocyclic, with no sexual stages being observed. The aphids can reproduce year round as long as host plants are available. Australian farmers have generally adopted prophylactic insecticide seed treatments and/or foliar sprays to manage D. noxia . Research is required to fully understand yield impacts, host preferences and host plant resistance associated with D. noxia . Cultural control through managing alternate host plants over summer, agronomic crop management, biological control and developments in host plant resistance should provide considerable future benefits.
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Database assignments for author(s): Maarten Van Helden, Paul A. Umina

Research topic(s) for pests/diseases/weeds:

Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.
Diuraphis noxia Wheat (Triticum) Australia (South+SE)