Stink bugs (Pentatomidae) are among the main entomological problems in the international farming. Their ability in using alternative plants (refuges) during the off-season is one of the reasons that led them to the status of key pests in several crops. Like other insect species, stink bugs are subject to atmospheric variations. Therefore, the objective of this experiment was to evaluate the abundance, the co-occurrence, and its variations according to the weather in the off-season. The work was conducted between 2014 and 2018, in the municipality of Cruz Alta, state of Rio Grande do Sul (RS), Brazil. Every year, refuges formed by Poaceae and located around the cropped area were evaluated in the second fortnight of June, corresponding to the beginning of the winter solstice. Atmospheric variables corresponding to the evaluation period were used to explain the variation in the populations. In short, our results demonstrated interannual variations in the population abundance of stink bugs in the evaluated refuges. We also found variations in the co-occurrence between species. Finally, we demonstrate the trend in the increase in these refuges in years with cold and dry off-seasons.

臭虫（Pentatomidae）是国际农业中的主要昆虫学问题之一。它们在淡季使用替代植物（避难所）的能力是导致它们在几种作物中成为主要害虫的原因之一。像其他昆虫物种一样，臭虫会受到大气变化的影响。因此，本实验的目的是根据淡季的天气评估丰度、共现及其变化。这项工作于 2014 年至 2018 年在巴西南里奥格兰德州 (RS) 的克鲁兹阿尔塔市进行。每年，在六月的第二个两周（对应于冬至的开始）评估由禾本科形成并位于作物区周围的避难所。与评价期相对应的大气变量被用来解释种群的变化。简而言之，我们的结果表明，评估的避难所中臭虫种群丰度的年际变化。我们还发现了物种间共现的变化。最后，我们展示了这些避难所在寒冷干燥淡季年份增加的趋势。