June 23, 2023
Written by: Peter Newman Imagine if we had a vaccine for COVID-19 when there were just three cases in the world. That would have made…
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May 23, 2023
Written by: Peter Newman We’ve talked in the past about the concept of the dimmer switch. There are times when the mood tells us it’s…
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February 1, 2021
About 35 years ago a ryegrass population that had been sprayed several times with Hoegrass® (Diclofop) became resistant to that herbicide and cross resistant to Glean (chlorsulfuron) before Glean® or any other ALS herbicide had ever been used in Australia.
P450 enzymes were suspected to be the cause of this cross resistance but it has taken until now to get the definitive evidence.
A very patient group of researchers led by Heping Han from AHRI, including researchers from Bayer and Zheijiang University in China have identified the P450 gene responsible for cross resistance to herbicides of at least five modes of action.
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