NEMATOIDES ASSOCIADOS À GOIABEIRAS NA REGIÃO SUL DO ESTADO DE GOIÁS

Abstract

Brazil has stood out on the world stage as one of the largest producers of tropical fruits, and especially favored for its diversity of climate and soil. The southern region of the State of Goiás has shown highlighted in the fruit-growing sector, mainly in the city of Morrinhos and neighboring cities, where currently there is an increase in planting of commercial areas guava mainly for industry processing. Thus the present study aimed to carry out a survey of nematodes in guava growing areas in the southern region of the State of Goiás. We conducted sampling in 30 properties with a total area of 80.1 hectares, during the months from February to March 2016, covering 14 municipalities: Morrinhos, Piracanjuba, Goiatuba, Pontalina, Caldas Novas, Joviânia, Itumbiara, Água Limpa, Corumbaíba, Bom Jesus de Goiás, Buriti Alegre, Rio Quente, Hidrolândia e Edealina. The main genera of nematodes found at the samples were: Helicotylenchus, Xiphinema, Rotylenchus, Tylenchus, Ditylenchus, Tubixaba, Scutellonema, Hemicriconemoides, Criconemella, Discocriconemella, Trichodorus, Hemicycliophora e Dolichodorus. It is worth mentioning the wide dissemination in guava growing areas of the first two genera of plant parasitic nematodes. Is the first report of Tubixaba infecting guava in southern Goiás. This study contributed to the knowledge of the occurrence and spread of nematode genera in areas cultivated with guava in south, State of Goiás. In addition to subsidizing new studies, serve to alert producers and enables to define more appropriate and efficient management systems aimed at reducing populations of nematodes in the infested areas.