Interspecific interactions between egg parasitoids of the stink bug Piezodorus guildinii (Hemiptera: Pentatomidae)

CINGOLANI, M.F.; BARAKAT, M.C.; LILJESTHRÖM, G.G.

Fortaleza

Conferencia; XXVIII Congresso Brasileiro de Entomologia; 2022

Sociedade Brasileira de Entomologia (SBE)

While searching for hosts, parasitoids may experience competition between adults exploiting hosts(extrinsic), or between larvae developing inside the host (intrinsic competition). An intrinsically inferiorcompetitor coexists with an intrinsically superior one, if it has better abilities to locate host. In soybean, the egg parasitoids Telenomus podisi and Trissolcus urichi (Hymenoptera: Platygastridae) compete on the host Piezodorus guildinii (Hemiptera: Pentatomidae), one of the major pest of this crop in Argentina. We evaluated several aspects of extrinsic and intrinsic competition between these parasitoids to better understand the intraguild interactions between them. This information can improve biological control programs against P. guildinii.