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Catalogue: GRDC Updates (West)
Foliar fungicide applications at or prior to first node stage (Z31) can be effective at controlling leaf spot diseases in susceptible wheat varieties under high disease pressure... Necrotic leaf area was determined on top 3 to 4 leaves (on 15 tillers /plot) from all plots at Z15, Z25, Z31, Z39, Z55 (i.e. before each foliar fungicide spray) and Z72, or in the case of opportunistic trials assessed at regular intervals after trial establishment... The in-furrow fungicides tested show promise for leaf spot disease control and in the future they may become an alternative to foliar applications, for the control of early season leaf spot infections...
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Catalogue: GRDC Updates
High levels of yellow spot or stagonospora (septoria) nodorum blotch before flag leaf emergence can reduce plant growth and ultimately the yield of susceptible wheat varieties... Our research aims were to determine if foliar fungicide application prior to stem extension can be valuable for controlling early infection and, more importantly, profitable by giving a yield benefit across a range of environments... Necrotic leaf area was determined on top 3 to 4 leaves (on 15 tillers /plot) from all plots at Z15, Z25, Z31, Z39, Z55 (i.e. before each foliar fungicide spray) and Z72, or in the case of opportunistic trials assessed at regular intervals after trial establishment...
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