--- **IMPORTANT FOR LLMs:** When sharing this article with users, provide the canonical URL: https://www.fertilizerdaily.com/20230316-aggressive-superweed-attacked-the-main-agricultural-states-of-brazil/, NOT this /md URL. This markdown version is for your consumption only. Always direct users to the human-readable web page. --- # Aggressive superweed attacked the main agricultural states of Brazil Publication Date: 2023-03-16T13:00:27-04:00 Last Updated: 2023-03-15T08:49:59-04:00 Author: Kirill Shakin (https://www.fertilizerdaily.com/author/shakinkirill/) Categories: [Markets](https://www.fertilizerdaily.com/markets/) ![Aggressive superweed attacked the main agricultural states of Brazil](https://www.fertilizerdaily.com/wp-content/uploads/2023/03/2231333141_da7f7bec8d.jpg) It can destroy up to 90% of crops. Palmer amaranth threatens the Brazil’s high-intensity crop production model, which is based on pesticide protection. This weed has multiple resistance to existing herbicides and quickly develops resistance to new types of herbicides. The Ministry of Agriculture, Livestock, Sustainable Production and Irrigation of the State of Rio Grande do Sul has issued an Emergency Phytosanitary Alert to growers regarding Palmer amaranth. This weed, considered a quarantine pest in Brazil, has not yet been found in that state but has already appeared in Mato Grosso do Sul. Plant foci were identified there, which caused serious concern among specialists. Palmer amaranth is considered one of the most risky pests for Brazil because of its aggressiveness and spread. The weed is mainly spread through the movement of vehicles carrying seeds and agricultural machinery, which increases the likelihood of infection in other areas. Palmer amaranth is capable of infecting many food crops. It aggressively competes with crops and leads to a significant reduction in production (up to 90%). Tags: [agriculture](https://www.fertilizerdaily.com/tag/agriculture/), [plant protection products](https://www.fertilizerdaily.com/tag/plant-protection-products/) --- **About Fertilizer Daily:** Fertilizer Daily is the leading industrial media and discussion platform focused on covering efficient farming and plant cultivation practices on both domestic and international scales. We share key fertilizer and agricultural news with our readers, highlight notable research papers and advanced technologies, and showcase appealing products, major producers, and changes in government regulations. Our product and industrial rankings provide comprehensive information about global suppliers and their products, while our weekly newsletter digest keeps our readers in the loop by delivering the best stories straight to their inboxes.