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Title: Correlating Refuge Attractiveness with Productivity and Plant Parameter
Authors: Tan, William
Keywords: Annual Operating Plan
Bollgard III®
Bt toxin
management strategies
Australian cotton farms
agronomic decisions
research and extension
Issue Date: 30-Jun-2013
Publisher: University of Sydney
Series/Report no.: ;CSE1307
Abstract: A key tactic within the CRDC’s 2012-12 Annual Operating Plan is ‘Assuring industry capacity to manage the stewardship of biotechnologies and crop protection products’. Refuges are key to maintaining the viability of Bt cotton by delaying resistance development in Helicoverpa to Bt toxin. However, to ensure the best resistant management strategies are in place for Bollgard III, refuge assumptions need to be confirmed. In a previous summer Scholarship (CRC SS) refuge assumptions were tested, finding 1) no difference on commercial farms in the number of eggs laid on pigeon pea and cotton refuges; and 2) that more moths were produced from cotton refuges. Because these results are controversial, , the researcher proposes to repeat the study, but include additional measurements of nitrogen and moisture content of the refuge crop, as laboratory results indicate that these parameters affect refuge attractiveness and productivity. The aim of this project is to clarify the findings of relative attractiveness and productivity of commercially grown cotton and pigeon pea refuges. This information will enable us to quantify refuge productivity. This project will involve sampling refuges on approximately 20 farms. The direct involvement of growers with this project will increase their ownership and acceptance of the results.
Appears in Collections:2013 Final Reports

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