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Beet western yellows virus in canola

Beet western yellows virus in Canola

Early spread of the green peach aphid (GPA) (Myzus persicae) has severely damaged early sown South Australian canola crops and transmitted beet western yellows virus (BWYV). In Victoria and NSW, high GPA numbers have been reported with BWYV detected in many crops, although crop damage is not as severe as […]

Yellow leaf spot of wheat

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). Field trials In years with a wet spring, heavy infestations of yellow leaf spot can cause yield […]

Sclerotinia stem rot in canola

Sclerotinia Stem Rot

In 2013 sclerotinia was observed in all canola producing states, however, it was more severe in North Eastern Victoria, southern New South Wales and some parts of Western Australia. Epidemics of sclerotinia in southern New South Wales and north-eastern Victoria were observed in traditionally high rainfall districts and infection levels […]