Influence of ethanol concentration on Scolytinae (Coleoptera: Curculionidae) in a native forest in the municipality of Campo Verde - MT

Abstract

A survey of Scolytinae was carried out in native vegetation in the city of Campo Verde, Mato Grosso, by using 60 ethanolic traps, distributed in six treatments (T) and ten repetitions. With the exception of T4, alcohol was placed in the collection vial. In T1 (control) water, salt and neutral detergent were used; T2 = 25% alcohol; T3 = 50% alcohol; T4 (traps with 96% ethanol in the hose and 70% in the collection flask); T5 = alcohol 75% and T6 = alcohol 96%. There were 13 genera, 31 species and 7,469 individuals. Hypothenemus eruditus, Xyleborus affinis and Sampsonius dampfi were the most common. Population peaks were more frequent in the dry months of the year.