High density of ka'aruru can compromise up to 80% of soybean yield

The professional, who will lecture at the International Weed Symposium (SIMAL 2025), scheduled for June 11 in Foz do Iguaçu, highlighted that both in Brazil and other countries in the region, there are several tools for weed control, but very few products are repeatedly used, with the idea of saving money, which translates into a significant increase in the amount of herbicides used per hectare, a reason why, according to the professor, a cultural change in weed management is required to use different molecules and options. Amaranthus is one of the aggressive weeds currently facing farmers, which can grow rapidly up to 4 cm per day and have a super-production of seeds. "One plant, if it reaches 2 m in height, will be a limitation for crop light, and another aspect is its seed production level, as it can produce 600,000 seeds; it is not easy to work with a plant that can have such dissemination," he noted. Arrobas explained that they conducted field work with other researchers, ...