The annual application of herbicides in the world increases every year, due to the great losses of crops due to weeds, as an alternative to this, we have the use of agrochemicals, especially herbicides, which may be the only effective way to temporarily defend a weed crop. However, nowadays, dangerous herbicides are applied in the fields, causing harm to farmers, consumers and the environment. Due to this, the search for new alternatives is proposed, such as the identification of natural substances with allelopathic effects to obtain natural herbicides. Essential oils are a suitable type of allelochemicals to be used as bioherbicides due to their biodegradability, high structural diversity, and natural resistance to reducing weeds. The objective of this research is to search for phytotoxic potentials from the essential oils of plant species of the Piparaceae family. For the extraction of...