Occurrence and management recommendations of Sirex noctilio Fabricius (Hymenoptera, Siricidae) on Pinus patula (Pinaceae) plantations in the state of Minas Gerais, Brazil

Occurrence and management recommendations of Sirex noctilio Fabricius (Hymenoptera, Siricidae) on Pinus patula (Pinaceae) plantations in the state of Minas Gerais, Brazil. The woodwasp Sirex noctilio Fabricius, 1793 (Hymenoptera, Siricidae) is the most important pest on Pinus spp. in Brazil. It was introduced in the state of Rio Grande do Sul in 1988 and dispersed through the southern states. In 2004 it was detected in Sao Paulo state. In this work, it is reported the occurrence of S. noctilio in the state of Minas Gerais, in January 2005, on commercial areas of Pinus patula. It is discussed some measures that can be adopted to restrict its spread in the southeastern region.