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Catalogue: GRDC Media
Canola growers can reduce potential yield losses and the probability of blackleg disease resistance breakdown occurring by changing cultivars every three years... That's according to blackleg authority Steve Marcroft who says sowing the same cultivar every year is likely to break the cultivar's resistance to blackleg - the most severe disease of canola in Australia... Speaking at recent Grains Research and Development Corporation (GRDC) grains research Updates throughout the southern cropping region, Dr Marcroft has told growers and advisers that every year a cultivar is sown from the same resistance group, the number of virulent isolates that can attack that particular cultivar increases...
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Catalogue: GRDC Updates
If you sow the same cultivar every year you are likely to break the cultivar's blackleg resistance... If you have a blackleg problem and are growing a susceptible cultivar your first action should be to change to a cultivar with higher levels of resistance... The best policy is to monitor the level of blackleg in your cultivar on your farm, if you observe the level of disease increasing then switch to a different group...
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Catalogue: GRDC Media
Canola growers can reduce potential yield losses and the probability of blackleg disease resistance breakdown occurring by changing cultivars every three years... That's according to blackleg authority Steve Marcroft who says sowing the same cultivar every year is likely to break the cultivar's resistance to blackleg - the most severe disease of canola in Australia... Speaking at recent Grains Research and Development Corporation (GRDC) grains research Updates throughout the southern cropping region, Dr Marcroft has told growers and advisers that every year a cultivar is sown from the same resistance group, the number of virulent isolates that can attack that particular cultivar increases...
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Catalogue: Ground Cover
Photo showing the effects of Feathertop Rhodes grass.. Many northern farming systems rely on herbicides to control weeds, and herbicide resistance could hit hard... Once a weed patch has been identified as having resistance, growers need to treat that patch separately from the rest of the paddock; whether by mechanically removing those weeds, or using a double knock to remove the problem weeds...
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