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Aphids to spray or not to spray
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Spraying to manage aphid infestations in the northern region does not guarantee increased yields.. Research is beginning to show that controlling aphids may not necessarily lead to higher yields or prevent the spread of viruses... While aphids can transmit damaging viruses to faba beans, trying to control virus transmission by spraying for aphids is likely to be of little use in preventing the spread of non-persistently transmitted viruses, such as bean yellow mosaic virus (BYMV)...
GRDC 2014 Research Summaries
Barley Yellow Dwarf Virus Fact Sheet: Management tips to avoid yield penalties (High resolution version)
GRDC Final Reports
Grains Notes DEPI VIC