Avaliação da sanidade de híbridos de milho safrinha, em relação à helmintosporiose e bipolaris, nas regiões de Bambuí, Iguatama, Medeiros e Luz, em virtude de suas características, local de cultivo e do manejo adotado

Brazil is one of the largest corn producers in the world, with a vast planted area and significant production. The choice of hybrid and phytosanitary management directly influences the incidence of pests and diseases in the crop, with resistant hybrids showing lower susceptibility to certain pests and diseases. Factors such as climate, soil, and management practices also impact pathogen infestation, with emphasis on diseases such as Bipolaris, Helminthosporiosis, White Leaf Spot, and Cercosporiosis. This study investigates the influence of hybrid characteristics, cultivation location, and management on the incidence of pests and diseases in corn crops. Given the importance of corn in Brazilian agriculture and its extensive cultivation during the second crop season, eleven farms were analyzed in the state of Minas Gerais, in the regions of Bambuí, Iguatama, Medeiros, and Luz. The study seeks to correlate variations in the incidence of the Leaf Spot Complex, composed of Helminthosporiosis and Bipolaris, with the characteristics of the genetic material used, the planting location, and the phytosanitary management adopted. It aims to recommend which hybrids and regions yielded better results regarding pathogen infection. The results indicated that the hybrids P 3707 VYH – Pioneer, K 7510 VIP 3 – KWS, and Supremo VIP 3 – Syngenta are the most suitable for second-crop corn cultivation due to the absence of disease, while the Medeiros region showed the lowest infection rates and is the most recommended for corn cultivation during the same period.