Performance of baited traps for integrated management of Hypothenemus hampei Ferrari (Coleoptera: Scolytinae) in a conilon coffee crop in Rondônia State, Brazil

Abstract

Hypothenemus hampei (Ferrari) is an important pest worldwide. Methods of monitoring and control using baited traps are not yet established in coffee plantations in the Brazilian Amazon. The objective of this work was to record, for the first time, results of the use of baited traps in coffee plantation located in Rondônia, in favor of the control and pest monitoring. Two areas were delineated: i) with use of the traps baited with ethanol/methanol (1:1), treatment; ii) without use of traps (control). For comparison of results, two factors were considered: damaged fruits (damage by H. hampei) and infested (H. hampei inside of fruits). It was observed higher levels of damaged fruits per plants in the control area compared to the area where traps were used. The density of the pest population per plants found on infested fruits was also higher in the control area compared to the trapping area. These results suggest that traps baited with ethanol/methanol (1:1) are an effective alternative for population control of pest also in the coffee plantations in Rondônia, where there is no such management with this tool. Use of the baited traps to monitor the insect accurately revealed that the flight stimulus of the colonizing females is influenced by values of the environmental variables. According to the results, colonizing females are more active in the afternoon. Therefore, in order to achieve more efficient control of H. hampei, the best time to apply control agents is between 2:00 pm and 6:00 pm.

POPULATION DYNAMICS OF Hypothenemus hampei (Coleoptera: Scolytidae) IN AGROFORESTRY AND MONOCULTURE SYSTEMS OF CONILON COFFEE IN THE SOUTHERN PORTION OF THE STATE OF AMAZONAS, BRAZIL

“…There are no previous reports describing the population dynamics of H. hampei in the state of Amazonas. Highly compromising levels are reported in other states in the Amazon region, like Rondônia (Souza et al, 2020;Souza et al, 2014;Costa et al, 2002). Thus, in order to better elucidate the population of this pest in the state of Amazonas, the objective of this study was to evaluate and report the population dynamics of H. hampei using climatic parameters, plant phenology and diff erent coff ee planting systems in the Amazonian environment.…”

Densidade populacional e área de amostragem para a broca-do-café, >i<Hypothenemus hampei>/i< (Ferrari), por meio de armadilhas com semioquímicos

“…Diversos fatores podem afetar a eficiência de modelos de armadilha na captura de fêmeas de H. hampei, incluindo a altura de instalação da armadilha (Dufour e Frérot 2008;Uemura-Lima et al 2010; Ruiz-Diaz e Rodrigues 2021), a dinâmica populacional do inseto nos diferentes estágios fenológicos da cultura (Souza et al 2020b;Dufour et al 2021), a cor da armadilha Saravanan e Chozhan 2003;Dufour e Frérot 2008), o horário de voo do inseto (Souza et al 2020a), fatores climáticos (Constantino et al 2021) e os atraentes utilizados (Silva et al 2006;Dufour e Frérot, 2008;Fernandes et al 2014).…”