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Open research questions in Weed Control and Herbicide Applications

67 unresolved questions extracted from the limitations and future-work sections of 376 Weed Control and Herbicide Applications papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • One challenge is the varying energy thresholds required for control of different species and growth stages. Another challenge is the need for further research to explore the feasibility and applicability of mid-infrared radiation for thermal weed control. A third challenge is the potential for seed size to influence the energy required for 50% viability reduction.

    Energy Thresholds for Mid-Infrared Thermal Control of Weed Seeds and Plants · 2026 · DOI

  • The study faced challenges in evaluating the number of herbicide applications and mechanical weeding passes due to limited implementation. The study faced challenges in accounting for the variability in soil typology and crop yield potential.

    Wheat yield is resilient to weed pressure under preventive and herbicide-free integrated weed management · 2026 · DOI

  • Weeds play a major role in limiting rice production. The reliance on chemical control is a challenge. The need to promote integrated weed management strategies.

    Floristic diversity of weeds and herbicide use practices in rice-growing systems in the Zouan-Hounien department (Western Côte d’Ivoire) · 2026 · DOI

  • Weed infestation is a major constraint to maize productivity. The study highlights the need for effective weed control strategies. The experiment was conducted only during the 2023 and 2024 seasons.

    Weed control and yield optimization in maize (Zea mays L.) using new-generation herbicide combinations · 2026 · DOI

  • Heavy weed infestation in alfalfa production. Abiotic stress factors affecting alfalfa growth and productivity. Need for sustainable and cost-effective forage production systems.

    Synergistic Herbicide Applications Enhance Alfalfa (Medicago sativa L.) Yield, Weed Suppression and Forage Quality · 2026 · DOI

  • Rapid growth and competitiveness of Palmer amaranth. Limited efficacy of current postemergence control options. Development of herbicide resistance in Palmer amaranth.

    Iptriazopyrid Undergoes Limited Metabolism in A Mesotrione-Resistant Palmer Amaranth ( <i>Amaranthus palmeri</i> ) Accession · 2026 · DOI

  • The complexity of the bacterial community in soils. The difficulty of analyzing the bacterial community structure and its putative metabolic functions. The need to consider the effect of agricultural practices on the bacterial community in soils.

    Application of glyphosate or paraquat before the emergence of maize plants (Zea mays L.) had no detectable effect on the rhizosphere or endophyte bacterial community structure under the tested field conditions · 2026 · DOI

  • Weeds are a major factor limiting agricultural production. Common sunflower is a significant weed species in northern Tamaulipas, Mexico. There is a need to develop effective weed management strategies.

    Effectiveness of Two Herbicide Application Methods for Common Sunflower (Helianthus annuus L.) Control in Northern Tamaulipas, México · 2026 · DOI

  • There is a need to evaluate the effectiveness of different herbicide application methods for controlling common sunflower. The study aims to address this gap by comparing the effectiveness of a tractor-mounted sprayer and a drone.

    Effectiveness of Two Herbicide Application Methods for Common Sunflower (Helianthus annuus L.) Control in Northern Tamaulipas, México · 2026 · DOI

  • The yields obtained from farmers’ fields remain below those achieved at research stations due to factors such as weeds. There is a need to determine appropriate weed management practices in bean production.

    Integrated Weed Managements Effect on Yield Components, Yield of Common Beans (Phasoulus vulgaries L.) and Weed Suppression in Southern Ethiopia · 2026 · DOI

  • There is a need for sustainable weed control strategies that reduce dependence on synthetic herbicides. Current approaches have negative environmental impacts and promote weed resistance.

    STRATEGI PENGENDALIAN GULMA BERKELANJUTAN MELALUI ALELOPATI, MULSA, DAN BIOHERBISIDA: LITERATURE REVIEW · 2026 · DOI

  • Intense weed competition in fodder maize production. Herbicide residue concerns in fodder maize production. Limited land availability and low nutritive value of crop residues.

    Impact of sowing techniques and herbicidal interventions on weed management and residue dynamics in fodder maize · 2026 · DOI

  • The lack of effective weed management strategies for fodder maize production. The need for safe and efficient herbicidal interventions for fodder maize production.

    Impact of sowing techniques and herbicidal interventions on weed management and residue dynamics in fodder maize · 2026 · DOI

  • The lack of effective integrated weed management strategies for wheat cultivation. The need to identify practical alternatives to labor-intensive weed-free conditions.

    Effect of integrated weed management on growth and yield of Wheat (Triticum aestivum L.) · 2026 · DOI

  • Weed infestation is a significant problem in hairy vetch production. The effects of herbicides on soil microorganisms and enzyme activity are not well understood. There is a need to balance crop protection with environmental sustainability.

    Investigation of the effect of various herbicides on the development of hairy vetch (Vicia villosa Roth.) and soil · 2026 · DOI

  • There is a lack of research on the effects of herbicides on soil microorganisms and enzyme activity. The current study aims to fill this knowledge gap by investigating the effects of various herbicides on hairy vetch development and soil microorganisms.

    Investigation of the effect of various herbicides on the development of hairy vetch (Vicia villosa Roth.) and soil · 2026 · DOI

  • There is a lack of understanding of the effects of cover crops on weed dynamics in Mediterranean horticultural systems. There is a need for more research on the potential of cover crops to promote a more even distribution of relative abundance of weed species.

    Cover crops as a weed management strategy in Mediterranean horticulture: evidence from field experiments in Portugal · 2026 · DOI

  • There is a need to evaluate the efficacy of different weed management practices for managing weeds and enhancing crop performance in maize. There is a lack of information on the mode of action of metolachlor and its soil behavior.

    Different weed management practices influence weed dynamics and productivity of maize (Zea mays L.) · 2026 · DOI

  • The lack of understanding of the effects of season-long fall panicum interference on rough rice yield on organic soils. The need for quantitative information on the relationship between fall panicum density and percent rough rice yield loss.

    Effects of Fall Panicum ( <i>Panicum dichotomiflorum</i> ) Interference on Rough Rice Yield · 2026 · DOI

  • The study relies on a literature review and modeling approach, which may not capture the complexity of seed dispersal in the field. The study excludes 14 species that lack seeds and 34 species that are not known to produce seed in New Zealand.

    Seed dispersal mechanisms and dispersal potential of environmental weeds in New Zealand · 2026 · DOI

  • There is a lack of understanding of seed dispersal mechanisms and dispersal potential for environmental weeds in New Zealand. The study aims to address this gap by investigating seed dispersal mechanisms and estimating dispersal distances.

    Seed dispersal mechanisms and dispersal potential of environmental weeds in New Zealand · 2026 · DOI

  • Diflufenican is a selective phenyl ether herbicide belonging to WSSA Group 12 Limited information is available regarding its efficacy, crop safety, and interaction with metribuzin when applied preemergence (PRE) in soybean under Ontario growing conditions.

    Efficacy of Diflufenican Plus Metribuzin Applied Preemergence in Soybean · 2026 · DOI

  • There is a lack of awareness of D. stramonium among farmers, regulatory bodies, and food and feed producers. The study addresses the gap by analyzing the spatiotemporal spread patterns of D. stramonium in Austria and its significance for soybean cultivation.

    <i>Datura stramonium</i> L. in soybean in Austria: risk areas, extent of late-season infestation, and management implications · 2026 · DOI

  • There is a need for environmentally sustainable strategies for suppressing weeds and enhancing onion yield. The effects of different mulch materials on weed control, plant growth, and yield in onion cultivation are not well understood.

    Effects of Different Mulch Materials on Weed Control and Yield in Onion (Allium cepa L.) Cultivation · 2026 · DOI

  • There is a need to understand the influence of flooding patterns on weed species diversity and maize yield in flood recession farming. Prior studies have not examined the effects of flooding patterns on weed biomass and maize yield in the Okavango Delta.

    Influence of Flooding Pattern on Weed Species Diversity and Maize Yield in Flood Recession Farming in the Okavango Delta, Northern Botswana. · 2026 · DOI

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67 open questions have been extracted from the limitations and future-work passages of 376 Weed Control and Herbicide Applications papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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