Setter, S. D. and Setter, M. J. and Patane, K. and Logan, P. and Sydes, D. (2012) Pond apple (Annona glabra L.) - Investigating novel mechanical control options. Pakistan Journal of Weed Science Research, 18 . pp. 575-580.
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Article Link(s): http://www.wssp.org.pk/66-si-18-575-580.pdf
Pond apple usually occurs in swampy areas, but mechanical control may be a viable option in some locations during drier periods. Two machines, the Positrack™ and the Tracksaw™, have been trialled for initial kill rate, amount of follow-up control required, safety to field operators, cost-efficiency and selectivity (effect on native vegetation), compared to other control options. The Positrack™ is a tracked bobcat with a slasher-type attachment that cuts individual trees off near ground level and mulches them. It has no on-board herbicide application capability and requires an additional on-ground operator to apply herbicide by hand. The Tracksaw™ is a tracked mini-excavator with a chainsaw bar and spray applicator on the boom that cuts individual trees off near ground level and applies chemical immediately to the cut stump, requiring only a single operator. Initial trials were done in infestations of similar sizes and densities at the Daintree (Positrack™) and in Innisfail (Tracksaw™) in late 2009. Kill rates to date are 83% for Positrack™ mechanical, 95% for Positrack™ mechanical plus herbicide, and 78% for the Tracksaw™ combined treatment. If ongoing comparison proves either of these machines to be more cost effective, selective, and safer than traditional control methods, mechanical control methods may become more widely used.
|Business groups:||Biosecurity Queensland|
|Subjects:||Science > Invasive Species > Plants > Integrated weed control|
|Deposited On:||28 Nov 2013 01:15|
|Last Modified:||28 Nov 2013 01:20|
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