Insetos associados ao solo em canaviais da região Sul de Mato Grosso do Sul

Abstract

The insect pests are one of the factors affecting the productivity of sugar cane, especially those associated with soil, which can cause damage if not controlled. This study investigated the occurrence and population fluctuation of insects in the soil in sugarcane fields in four municipalities of the State of Mato Grosso do Sul in September 2009 to August 2010. To capture the insect traps were installed and samples on the soil surface. We found specimens of the family Scarabaeidae, in great abundance in the fields. In the municipalities of Maracaju and Naviraí specimens were found of the family Termitidae, identified as Neocapritermes opacus (Hagen, 1858) (Isoptera: Termitidae) and Embiratermes heterotypus (Silvestri, 1901) (Isoptera: Termitidae). Sphenophorus levis (Vaurie, 1978) (Coleoptera: Curculionidae) and Migdolus sp. Maracaju were sampled, and the occurrence of S. levis is first found in the state. There was no capture of adult Migdolus in pheromone traps, which demonstrates that the specimens of immature Migdolus found in the trenches are not the species M. fryanus. The leafhopper-ofroots Mahanarva fimbriolata (Stal, 1854) (Hemiptera: Cercopidae) was found only in cities where sugar cane fields of the crop was harvested mechanically.