Use of natural products for weed management in high-value crops: An Overview

Use of natural products for weed management in high-value crops: An Overview

Rupinder Saini* and Sukhbir Singh

Department of Plant and Soil Science, Texas Tech University, Lubbock, TX, USA

American Journal of Agricultural Research

Over the last five decades, weed management systems have relied primarily on synthetic herbicides. Due to the concerns over the potential impact of chemicals on human health and the environment, efforts are being made to reduce the heavy reliance on synthetic herbicides. To reduce synthetic herbicides, use of natural products such as essential oils, plant extracts, allelochemicals, agricultural by-products, and some microbes are gaining attention because they are safe due to their short environmental half-life and low toxicity. These natural product bioherbicides are a good alternative to synthetic herbicides especially in organic agriculture since they focus on environmental protection, practical viability, compatibility for integrated programs, and ecological stability. Most of the commercially available natural herbicides are non-selective and require careful application in order to preserve the crop of interest. Although many studies in this direction have been undertaken, the use of these natural products is still not common because of the difficulties in their synthesis due to their complex structure, cost effectiveness, poor results in field trials, and rapid degradation. No single above mentioned natural product has the potential to comprehensively replace chemical weed management; however, an integrated approach may provide better results. Thus, the role of bioherbicides in modern weed management is complementary rather than exclusive.

Keywords: Allelopathy, bioherbicides, corn gluten meal, essential oils, mustard seed meal, pathogens, plant extracts

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Rupinder Saini and Sukhbir Singh. Use of natural products for weed management in high-value crops: An Overview. American Journal of Agricultural Research, 2019,4:25. DOI:10.28933/ajar-2018-11-2808


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