Instituto de Ciências Agrárias, Universidade Federal de Uberlândia, Campus Glória, Rodovia BR 050 Km 78, Uberlândia, 38410-337, Brazil.
FMC Química Do Brasil Ltda., Rodovia PLN 145, 943, Bairro Boa Esperança, 13148-080, Paulínia, SP, Brazil.
Ecotoxicol Environ Saf. 2020 Oct 15;203:110947. doi: 10.1016/j.ecoenv.2020.110947. Epub 2020 Jul 17.
Cyantraniliprole was recently registered for controlling the coffee berry borer Hypothenemus hampei, the main coffee pest in the world. In this study, baseline determination and resistance monitoring to cyantraniliprole were carried out in Brazilian populations of H. hampei. Evaluations were carried out for three years with representative field-collected populations from nine coffee-producing states in Brazil, using artificial diet containing the insecticide. The likelihood of control failure due to cyantraniliprole resistance was also determined. Populations from Campo do Meio, Linhares and Jaú were more susceptible (<2-fold resistance) to cyantraniliprole than populations from Patrocínio and Londrina (17-fold). Nonetheless, the frequency of cyantraniliprole resistance insects was low and not significant throughout the regions survey and the likelihood of control failure was negligible. Therefore, cyantraniliprole remains an important management tool against the coffee berry borer without current problems of control failure. However, enough field variation in susceptibility to cyantraniliprole exists justifying attention and careful management of this insecticide to prevent quick development of insecticide resistance in populations of this insect pest species.
氯虫苯甲酰胺最近被注册用于防治咖啡果蛀果象 Hypothenemus hampei，这是世界上主要的咖啡害虫。在这项研究中，对巴西的咖啡果蛀果象 H. hampei 种群进行了氯虫苯甲酰胺的基线测定和抗性监测。使用含有杀虫剂的人工饲料，对来自巴西 9 个咖啡种植州的具有代表性的田间采集种群进行了为期 3 年的评估。由于氯虫苯甲酰胺抗性而导致控制失败的可能性也得到了确定。与来自 Patrocínio 和 Londrina 的种群（17 倍）相比，来自 Campo do Meio、Linhares 和 Jaú 的种群对氯虫苯甲酰胺的敏感性更高（<2 倍抗性）。尽管如此，整个调查地区对氯虫苯甲酰胺的抗性昆虫的频率很低，且不显著，控制失败的可能性可以忽略不计。因此，氯虫苯甲酰胺仍然是防治咖啡果蛀果象的重要管理工具，目前不存在控制失败的问题。然而，氯虫苯甲酰胺对其敏感性在田间存在足够的差异，这证明需要关注和谨慎管理这种杀虫剂，以防止这种害虫种群迅速产生抗药性。
