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Increasing the value and efficiency of herbicide resistance surveys

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Squires, C. C., Coleman, G. R. Y., Broster, J. C., Preston, C., Boutsalis, P., Owen, M. J., Jalaludin, A. and Walsh, M. J. (2021) Increasing the value and efficiency of herbicide resistance surveys. Pest Management Science, Early (n/a). ISSN 1526-498X

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Article Link: https://doi.org/10.1002/ps.6333

Publisher URL: https://onlinelibrary.wiley.com/doi/abs/10.1002/ps.6333


The scale of herbicide resistance within a cropping region can be estimated and monitored using surveys of weed populations. The current approach to herbicide resistance surveys is time consuming, logistically challenging, and costly. Here we review past and current approaches used in herbicide resistance surveys with the aims of i) defining effective survey methodologies, ii) highlighting opportunities for improving efficiencies through the use of new technologies and iii) identifying the value of repeated region-wide herbicide resistance surveys. One of the most extensively surveyed area of the world's cropping regions is the Australian grain production region, with in excess of 2900 fields randomly surveyed in each of 3 surveys conducted over the past 15 years. Consequently, recommended methodologies are based on what has been learned from the Australian experience. Traditional seedling-based herbicide screening assays remain the most reliable and widely applicable method for characterizing resistance in weed populations. The use of satellite or aerial imagery to plan collections and image analysis to rapidly quantify screening results could complement traditional resistance assays by increasing survey efficiency and sampling accuracy. Global management of herbicide resistant weeds would benefit from repeated and standardized surveys that track herbicide resistance evolution within and across cropping regions. This article is protected by copyright. All rights reserved.

Item Type:Article
Business groups:Crop and Food Science
Subjects:Science > Invasive Species > Plants > Effect of herbicides
Science > Invasive Species > Plants > Integrated weed control
Plant pests and diseases
Live Archive:10 Mar 2021 03:03
Last Modified:03 Sep 2021 16:46

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