The populations of phytophagous stink bugs may vary with cultivar and crop management. The aim of this study was to know the population dynamics of stink bugs Euschistus heros, Nezara viridula, and Piezodorus guildinii at different soybean phenological stages. Samples of each stink bug species were collected from three soybean (Syn1059, P97R01, and M7110IPRO) cultivars conducted in two seasons. For three cultivars and two seasons, E. heros was the most abundant, followed by P. guildinii and N. viridula. The soybean phenology influenced stink bug population dynamics, mainly in the reproductive stages. For soybean cultivars, Syn1059 and M7110IPRO were high colonized by stink bugs, while colonization in P97R01 was low suggesting susceptible differences between cultivars. The number of collected insects was positively related between reproductive soybean phonological stages, suggesting that stink bugs population can compromise crop production.

中文翻译：

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臭虫种群与大豆（Glycine max L.）物候的关系

植食性臭虫的种群可能因品种和作物管理而异。本研究的目的是了解臭虫 Euschistus heros、Nezara viridula 和 Piezodorus guildinii 在不同大豆物候阶段的种群动态。从两个季节进行的三个大豆（Syn1059、P97R01 和 M7110IPRO）栽培品种中收集每种臭虫物种的样品。在三个品种和两个季节中，E. heros 数量最多，其次是 P. guildinii 和 N. viridula。大豆物候影响臭虫种群动态，主要是在繁殖阶段。对于大豆品种，Syn1059 和 M7110IPRO 被臭虫高定殖，而 P97R01 的定殖低，表明品种之间存在易感差异。