Instituto Federal de Educação, Ciência e Tecnologia Baiano Distritio de Ceraima, Guanambi, Bahia, Brazil.
Universidade Federal de Viçosa, Departamento de Fitotecnia, Viçosa, Minas Gerais, Brazil.
Pest Manag Sci. 2018 Feb;74(2):398-405. doi: 10.1002/ps.4720. Epub 2017 Oct 19.
Empoasca kraemeri is an important pest on common bean crops at different technological levels. However, for this pest on this crop, economic injury levels have not yet been determined and plan for sequential sampling plans has not yet been developed. Thus, the objectives of this research were to develop E. kraemeri sequential sampling plans and to determine economic injury levels in the common bean at different crop technological levels.
Common bean plants tolerate low attack intensities of this pest (up to 1 adult plant ). However, with an increase in attacks, there is a reduction in grain production by the plants. The economic injury levels were 0.48, 0.39 and 0.35 adults sample (leaf beating on a tray) for crops with low (1200 kg ha ), medium (1800 kg ha ) and high (2400 kg ha ) technological levels, respectively. Sequential sampling plans and the standardized plan produced similar decisions. However, in these decisions there was a time saving of more than 60% compared with the standardized plan.
All three economic injury levels determined and the sequential sampling plans developed in this study are suitable for incorporation into integrated management programs for common bean pests because they can be used by farmers operating at various technological levels to make adequate and rapid decisions. © 2017 Society of Chemical Industry.
茶翅蝽在不同技术水平的普通豆类作物上是一种重要的害虫。然而，对于这种作物上的这种害虫，还没有确定经济伤害水平，也没有制定连续抽样计划。因此，本研究的目的是制定茶翅蝽连续抽样计划，并确定不同作物技术水平下普通豆类的经济伤害水平。
普通豆科植物能承受这种害虫的低攻击强度（最多 1 个成虫植株）。然而，随着攻击的增加，植物的谷物产量会减少。经济伤害水平分别为低（1200 公斤/公顷）、中（1800 公斤/公顷）和高（2400 公斤/公顷）技术水平的作物上每样本（托盘上的叶片拍打）有 0.48、0.39 和 0.35 个成虫。连续抽样计划和标准化计划产生了类似的决策。然而，与标准化计划相比，这些决策节省了超过 60%的时间。
本研究确定的所有三个经济伤害水平和制定的连续抽样计划都适合纳入普通豆类害虫的综合管理计划，因为它们可以被不同技术水平的农民使用，以便做出适当和快速的决策。 © 2017 化学工业协会。
