Duponchelia fovealis (Lepidoptera: Crambidae) was introduced in Brazil not long ago and causes severe yield losses to strawberry plantations. This situation demands the development of sustainable pest management strategies. Podisus nigrispinus (Hemiptera: Pentatomidae) is a Neotropical generalist predator that has potential to be used in biological control programs against D. fovealis. Herbivore-induced plant volatiles (HIPVs) are of great interest due to their potential uses in pest management programs, particularly for improving biological control. In this way, this study aims at measuring P. nigrispinus response to volatiles induced by D. fovealis-damaged strawberry plants of two cultivars, namely San Andreas and Albion. For this purpose, headspace volatiles emitted by strawberry plants were chemically characterized and behavioral assays of P. nigrispinus nymphs were performed using a Y-tube olfactometer. The two strawberry cultivars, Albion and San Andreas, emitted higher amounts of terpenoids after being exposed to herbivory by D. fovealis. Several compounds were only detected in the headspace of D. fovealis-damaged plants. In spite of some qualitative and quantitative differences, the genotype did not affect the volatile emissions. Podisus nigrispinus showed preference for herbivory-damaged Albion and San Andreas plants in comparison to undamaged plants. However, P. nigrispinus did not prefer herbivore-damaged plants of any cultivar in particular. The results indicate that HIPVs mediate tritrophic signaling in this model system.

淡黄Duponchelia vevealis（鳞翅目：Crombidae）是不久前在巴西引进的，对草莓种植园造成严重的单产损失。这种情况需要制定可持续的有害生物管理战略。Podisus nigrispinus（Hemiptera：Pentatomidae）是新热带全民捕食者，有潜力用于抗黄斑病菌的生物防治计划。食草动物引起的植物挥发物（HIPVs）因其在有害生物治理计划中的潜在用途而备受关注，特别是在改善生物防治方面。这样一来，本研究旨在衡量P. nigrispinus响应诱导挥发物D. fovealis损坏的两个品种的草莓植物，圣安地列斯和阿尔比恩。为此，对草莓植株散发的顶空挥发物进行了化学表征，并使用Y型管嗅觉仪对黑松果若虫的行为进行了测定。两个草莓品种，Albion和San Andreas，在黄褐藻中接触草食性植物后，散发出更多的萜类化合物。仅在黄斑病菌受损植物的顶空发现了几种化合物。尽管在质量和数量上存在一些差异，但基因型并未影响挥发物的排放。与未损坏的植物相比，Podisus nigrispinus对草食性损坏的Albion和San Andreas植物表现出了偏爱。然而，P. nigrispinus尤其不喜欢任何品种的食草动物损坏的植物。结果表明，在该模型系统中，HIPV介导了三养信号。