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Speakers - Raúl A. Laumann

Type of the Presentation: (Short lecture)

 

STINKBUGS REPRODUCTIVE BEHAVIOR: MULTIMODAL COMMUNICATION AND POTENTIAL OF INTERFERENCE FOR PEST MANAGEMENT

Raúl A. Laumann1, Maria C. Blassioli-Moraes1, Andrej Čokl2, Miguel Borges1

 

1  Laboratório de Semioquimicos -Embrapa Recursos Genéticos e Biotecnologia, Avda W5 Norte (FINAL), 70770-917, Brasília, DF, raul.laumann@embrapa.br, carolina.blassioli@embrapa.br, miguel.borges@embrapa.br

2  Departamento of Entomology, National Institute of Biology, Večna pot 111, 1000 Ljubljana, Eslovênia, e-mail: andrej.cokl@nib.si

*  Correspondence: raul.laumann@embrapa.br

Plant dwelling stinkbugs communicate during reproductive behaviour predominantly by chemical and substrate-borne vibratory signals. Sexual communication starts with emission of male pheromones that attract females to the same plant. On the plant, females attract males by the emission of vibratory calling signals that trigger male responses characterized by emission of the calling and courtship song during searching the female. When insects are at short-range, courtship signals involve substrate-borne vibrations, short-range chemicals, visual and tactile that appear to be related with the stimulation of the pair for mating and copulation. Different modalities of signals act at unimodal, multicomponent or multimodal level, signals of different modalities, principally chemicals and vibratory ones, could interact in each step of the reproductive behaviour of Pentatomidae and signal of one modality could modulate the emission/reception of signals of others modalities. The specificity and power of the signals in shaping the behavior of the individuals and their interaction demonstrates the great potential that they have for the management of agricultural pest species. This potential will be discussed focusing mainly on three management strategies: 1- the use of signals for monitoring systems, 2- the possibility of interfering in copulation using disruptive signals and 3- the possibility of using stinkbugs signals to manipulate the behavior of natural enemies aiming to increase biological control.

 

Financial Support: Embrapa, CNPq, FAP-DF.