EFFICIENCY OF ATTRACTORS AND TRAPS FOR CAPTURE OF SPOTTED-WING DROSOPHILA IN VINEYARDS1

• Published in: Caatinga 2021-12, Vol.34 (4), p.830-836
• Main Authors: BRILINGER, DAHISE, ARIOLI, CRISTIANO JOÃO, WERNER, SIMONE SILMARA, ROSA, JOATAN MACHADO DA, BOFF, MARI INÊS CARISSIMI
• Format: Article
• Language: English
• Subjects: AGRICULTURE, DAIRY & ANIMAL SCIENCE; AGRONOMY; FISHERIES; FOOD SCIENCE & TECHNOLOGY; FORESTRY; VETERINARY SCIENCES
• ISSN: 0100-316X; 1983-2125; 1983-2125
• DOI: 10.1590/1983-21252021v34n410rc

ABSTRACT Pest monitoring is a practice that enables the estimation of populational density of insect-pests in crops. However, it requires the use of attractors and traps that present high efficiency. The objective of this work was to evaluate the efficiency of food attractors using different trap models for the capture of spotted-wing drosophila (Drosophila suzukii) insects, and the capture selectivity of these models in vineyards of Cabernet Sauvignon. The experiment was conducted in the 2018-2019 crop season, in São Joaquim, SC, Brazil. A randomized block design was used, in a 2 × 4 factorial arrangement consisted of two types of traps (PET bottle and plastic container), three attractors (SuzukiTrap®, Droskidrink, and Yeast), and distilled water as a control. The traps were distributed in a minimum distance of 15 m and fixed in the middle third of the plants. The collections and replacing of attractors were done with 21-day intervals. The data were analyzed through generalized linear models, using the Poisson distribution or Poisson with a dispersion parameter. All attractors tested captured adult D. suzukii insects. No significant differences were found between the trap types used. The findings of the present work showed that the trap plastic container with the Droskidrink attractor is the most suitable capture method to be used in monitoring programs for D. suzukii insects in commercial vineyards. RESUMO O monitoramento é uma prática que permite estimar a densidade populacional dos insetos-praga nos cultivos. Entretanto, torna-se necessário o uso de atrativos e armadilhas que apresentem elevada eficiência. Objetivo deste trabalho foi avaliar a eficácia de atrativos alimentares em diferentes modelos de armadilhas para a captura de Drosophila suzukii e a seletividade de captura desses conjuntos em vinhedos da cultivar Cabernet Sauvignon. O experimento foi conduzido durante a safra 2018/2019, no município de São Joaquim, SC. Utilizou-se o delineamento casualizado em bloco no esquema fatorial 2 × 4 , com dois tipos de armadilhas (garrafa PET e pote plástico) e três atrativos (SuzukiTrap®, Droskidrink e levedura) e água destilada como testemunha. As armadilhas foram distribuídas num distanciamento mínimo de 15 m e fixadas no terço médio das plantas. As coletas e reposição dos atrativos foram realizadas com intervalo de 21 dias. Os dados foram analisados por meio de modelos lineares generalizados, utilizando a distribuição de Poisson ou Poisson com parâmetro