Variable responses to fungicide timing to manage Yellow Leaf Spot in wheat led researchers to look more closely at how the fungus matures on stubble. Researchers are looking into how the fungus which causes Yellow Leaf Spot on wheat survives and matures on stubble, which in turn affects the onset […]
Topic: yellow leaf spot
Stubble-borne diseases such as yellow leaf spot (YLS) of wheat and spot form of net blotch (SFNB) of barley will need to be monitored during 2016 and foliar fungicides applied where necessary. These diseases will be common and most severe in early sown crops with wet seasonal conditions across the […]
Physiological yellowing in barley, photo: Steven Simpfendorfer, NSW DPI
Cold weather can cause a physiological response in crops leading cereal leaves to turn yellow and barley to develop brown spots. These can be easily confused with disease symptoms and there can be a temptation to respond with a fungicide. It is […]
Figure 1. Black fruiting bodies on stubble
In Victoria yellow leaf spot was common in many Wimmera, Mallee and Northern region wheat crops during 2013. The disease was most severe when susceptible varieties were sown into infected stubble (Figure 1).
In years with a wet spring, heavy infestations of yellow leaf […]