The brown stink bug, Euschitus servus, is an important early season pest of field corn. It feeds directly on the growth point of developing plants leading to delays in growth, stunting, and a reduction in yield when injury is severe. Injury from stink bug feeding is often observed days to weeks after it occurred at which point management provides no benefit. This study, conducted in Suffolk, VA in 2018 and 2019, examined prophylactic insecticide options, including seed treatments and in-furrow applications, for their efficacy against brown stink bug. Seed treatments are applied by manufacturers to many commercially available corn seed at different rates for below ground pests. In 2018 and 2019, brown stink bugs were artificially infested in seedling corn plots treated with clothianidin applied to the seed, bifenthrin applied in-furrow, or terbufos applied in-furrow. In 2019, an early and late planting date were used. The impact of stink bug feeding in the presence of each of these treatments, as well as the impact of the treatments on stink bug feeding behavior and mortality, were assessed. We found that clothianidin seed treatments have the potential to mitigate early season feeding from brown stink bugs and prevent yield reduction. We also observed reduced feeding activity and plant injury in early planted corn, suggesting later planted corn is more susceptible to stink bug injury. These results suggest that no additional management may needed for brown stink bugs in seedling corn when planting seed treated with insecticides.

棕色臭虫，Euschitus servus，是田间玉米的重要早期害虫。它直接以发育中的植物的生长点为食，导致严重伤害时生长延迟，发育迟缓和产量下降。臭虫喂食通常会在发生后的几天到几周内造成伤害，这时管理无济于事。这项研究于2018年和2019年在弗吉尼亚州萨福克市进行，研究了预防性杀虫剂的选择（包括种子处理和犁沟施用）对褐发臭虫的功效。制造商对地下害虫以不同的比率将种子处理剂应用于许多市售玉米种子。在2018年和2019年，在用玉米穗叶霉菌素处理过的种子，联苯菊酯在沟内施用或在terbufos在沟内处理过的玉米秧苗田中，人为侵染了棕色臭虫。在2019年 使用了早晚播种的日期。评估了在每种处理下存在的臭虫摄食的影响，以及这些处理对臭虫摄食行为和死亡率的影响。我们发现，可比尼丁种子处理剂有可能减轻棕色臭虫的早期饲喂并防止产量下降。我们还观察到早期播种玉米的摄食活性降低和植物伤害，表明后期播种的玉米更容易受到臭虫的伤害。这些结果表明，当种植用杀虫剂处理过的种子时，无需对玉米幼苗中的棕色臭虫进行额外的处理。以及治疗对臭虫摄食行为和死亡率的影响进行了评估。我们发现，可比尼丁种子处理剂有可能减轻棕色臭虫的早期饲喂并防止产量下降。我们还观察到早期播种玉米的摄食活性降低和植物伤害，表明后期播种的玉米更容易受到臭虫的伤害。这些结果表明，当种植用杀虫剂处理过的种子时，无需对玉米幼苗中的棕色臭虫进行额外的处理。以及治疗对臭虫摄食行为和死亡率的影响进行了评估。我们发现，可比尼丁种子处理剂有可能减轻褐臭虫早期的饲喂并防止产量下降。我们还观察到早期播种玉米的摄食活性降低和植物伤害，表明后期播种的玉米更容易受到臭虫的伤害。这些结果表明，当种植用杀虫剂处理过的种子时，无需对玉米幼苗中的棕色臭虫进行额外的处理。这表明以后种植的玉米更容易受到臭虫的伤害。这些结果表明，当种植用杀虫剂处理过的种子时，无需对玉米幼苗中的棕色臭虫进行额外的处理。这表明以后种植的玉米更容易受到臭虫的伤害。这些结果表明，当种植用杀虫剂处理过的种子时，无需对玉米幼苗中的棕色臭虫进行额外的处理。