Understanding the Effects of Changing Climate on Weeds and Their Management

Global temperature is shifting, and in addition to monitoring variations in carbon dioxide (CO2) and temperature levels, which are thought to contribute most to global warming, more attention is being paid to the implications of this change for agricultural production systems, including weeds. Future weed management and agricultural production are seriously threatened by rising CO2 levels and resulting changes in global precipitation and temperature. Most plant pests are largely influenced by climatic conditions in terms of their distribution, population structure, life cycle length, infestation stress, and general occurrence. The distribution of Competition among weed species in a weed population and among crops is influenced by changes in atmospheric CO2, precipitation, temperature, and other growth factors. In addition, interactions among these environmental elements can have unanticipated consequences for weed development. According to recent studies, these weeds as a group may have an effective reaction to the recent increase in atmospheric carbon dioxide. Many of these weeds reproduce by vegetative propagation. One of the most important features of the changing climate that can affect existing plants and weeds, allowing the displacement of certain native weeds by others and their spread into previously uninhabited regions, is the change and increase in temperature. Even some weeds develop allelic compounds that enable them to coexist and compete with crops in arid environments. The main aspects of this study are the effects of climate change variables on weed development and the likely variations in weed species. Comprehensive research of the climate change effects components and their interactions on all common weed dynamics are required in order to understand the significance for management of weeds under future climatic forecasts.