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  1. Level of threshold weed density does not affect the long-term …

    May 1, 1997 · It is shown that long-term application of thresholds results in a control frequency that is independent of threshold level, and in aperiodic dynamics of the weed population which …

  2. However, because most weed populations generate effects that carry over to following years, an eco-nomically-defined action threshold that deals solely with impact in the current sea-son is …

  3. Determining ETs or action thresholds of weeds involves methods that can measure and predict the level of weed infestation.

  4. Mastering Threshold Concepts in Weed Science

    Jun 12, 2025 · Threshold concepts in weed science refer to the critical levels of weed infestation or density that trigger the need for control measures.

  5. 5.7 Critical Period of Weed Control – Principles of Weed Control

    Critical Period of Weed Control is a threshold commonly used, which is relative to time from planting date. Researchers have identified at what point during the growing season weeds can …

  6. Integrating Biodiversity Benefits of Weeds into the Economic Threshold

    May 24, 2025 · The economic threshold indicates a weed density that will generate the same expenses with or without weed control. Given that both types of costs can be ex-ante …

  7. Level of threshold weed density does not affect the long-term …

    We conclude that the economic underpinning of the threshold concept is deceptive and does not provide a base for rational use of weed control in the long term.