Abstract
Pine stands are an important socioeconomic resource to Brazil and occupy 23.4% of the forest plantation area in that country. The main insect pest in this crop is the European woodwasp, Sirex noctilio (Hymenoptera: Siricidae). It is an exotic insect which had its occurrence reported in Brazil in the 80's for the first time, currently present in more than 450,000 hectares. To precocious de…