TRABALHO DE CONCLUSÃO DE CURSO - Aphelenchoides besseyi NA CULTURA DA SOJA

Abstract

Soybean cultivation is increasingly expanding. In Brazil and in the world, the oilseed (Glycine max (L.) Merrill) has shown great economic importance (Silva, 2019). Faced with the loss of total or partial plantations of soybean cultivars due to diseases caused by nematodes of different types that are spread across different countries. Brazilian studies indicate that the annual loss generated by these parasites can exceed US$ 100 billion annually in the world economy. Among the nematodes frequently found in soybean crops are: Meloidogyne spp (knot-forming nematodes), Heterodera glycines (the cyst nematode), Pratylenchus brachyurus (root lesion nematode), Rotylenchulus reniformis (reniform nematode) and the youngest among them the Aphelenchoides besseyi (green-stemmed nematodes) being responsible for causing losses estimated at around R$ 36 billion in the Brazilian economy. The present work aims to highlight the problems caused to different cultivars by nematodes with a focus on soybean, being more specific Aphelenchoides besseyi, responsible for attacking the aerial part of soybean. It is important to know the biology of this nematode, as well as its mechanism of parasitism, in order to propose the best management techniques in soybean cultivation, thus guaranteeing the expected productivity; preventing the multiplication of A. besseyi and promoting sustainable management.