Australia
November 22, 2018

Michael Whitney was an opportunist. He just happened to be playing county cricket in England when all of the Australian bowlers went down with an injury during the 1981 Ashes tour. He got the call-up to fill in and play for Australia and he grabbed that opportunity with both hands, turning it into an Australian international cricket career. Talk about timing!

Stopping ryegrass seed set pre-harvest in canola is all about timing. Sometimes the timing window lines up, other times it does not. Glen Riethmuller, DPIRD Merredin has a knack for choosing the most difficult, most labour intensive research trials to undertake. Between 2010 and 2013 he, along with Abul Hashem and Catherine Borger investigated ryegrass seed set control pre-harvest in canola.

They investigated the practice of spraying under the swather as canola is windrowed for harvest compared to crop topping (desiccation) spraying over the top of the canola. At the time glyphosate was not registered for this practice and this research contributed to this registration. For this reason, these research results were not made available until after the registration process was complete.

The researchers found that glyphosate can be effective either as a spray swath or crop topping treatment and that the other registered herbicide, diquat (Reglone®) is sometimes effective when the ryegrass is at the right stage but results were variable. Sometimes all of the ryegrass seed set control treatments work, sometimes none of them work. Timing is everything.

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Website: http://www.ahri.uwa.edu.au/

Published: November 22, 2018