Analysis of Herbicide Efficacy in Determining the Limitations of Traditional Sorghum Weed Control
and Exploring Future Opportunities
| DOWNLOAD | DOI: 10.62897/COS2024.2-1.113 |
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Author: Balázs Szemerits*, Gábor Kukorelli, Zoltán Molnár Széchenyi István University, Faculty of Agricultural and Food Sciences, Vár tér 2, Mosonmagyarovár, H-9200, Hungary szemeritsbalazs66@gmail.com |
Abstract: The excessive use of pesticides raises environmental concerns. New technologies, like imidazoli-none-, nicosulfuron-, and quizalofop-P-ethyl-tolerant sorghum hybrids, offer improved weed con-trol. These innovations promote sustainability by reducing chemical dependence. Evaluating past plant protection strategies is essential for refining future approaches. Dicamba is more effective than clopyralid for dicotyledonous weed control. However, dicamba has limited effectiveness against Cirsium arvense. Soil-acting herbicides like Gardoprim® Plus Gold mainly target mono-cots but lack post-emergence control. The best herbicide effect was achieved with pre-emer-gence and post-emergence technology applied in time. The effectiveness was 90-99 % for mono-cotyledons and 96-99 % for the main dicotyledonous weeds. Late application timing significantly reduces efficacy, as seen with Panicum miliaceum and Echinochloa crus-galli. This leads to in-creased weed competition and reduced sorghum yields. The withdrawal of S-metolachlor high-lights the need for new monocot herbicides. Herbicide-tolerant sorghum hybrids could address this issue. Further research is crucial to optimize these technologies. These solutions must be integrated into sustainable farming practices. New herbicide-tolerant varieties can help sorghum thrive despite weed pressure. Continued investment in research is essential for sustainable crop production. Integrating effective herbicides reduces the environmental impact of farming.
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