Level of threshold weed density does not affect the long-term …
May 1, 1997 · Weed control thresholds are often presented as a means to reduce unnecessary control measures, thereby increasing the effectiveness of weed management. While the …
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 …
As an extension of weed threshold models in which crop losses are based on weed density, an altemative model for grass weeds in cereal crops is proposed that incorporates the theoretical …
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.
Determining ETs or action thresholds of weeds involves methods that can measure and predict the level of weed infestation.
Weed Thresholds: The Space Component and Considerations for …
Simulations suggest optimum weed population levels (thresholds) for maintaining genotypes that are susceptible to control practices and which minimize crop yield reductions.
The Theory and Application of Plant Competition Models: an …
The threshold is calculated as the weed density at which the cost of chemical control is equal to the net benefit on crop yield gained through a reduction in weed competition.