Functional response of Graptocleptes bicolor (Heteroptera:Reduviidae) and Podisus nigrispinus (Heteroptera:Pentatomidae) on Spodoptera frugiperda (Lepidoptera:Noctuidae)

Sunday, November 10, 2013: 1:39 PM
Meeting Room 12 B (Austin Convention Center)
Juliana Neves , Departament of Entomology and Acarology / Laboratory of Insect Ecology and Forest Entomology, Luiz de Queiroz College of Agriculture/University of São Paulo, Piracicaba, Brazil
Victor Botteon , Entomology and Acarology Department/ Laboratory of Insect Ecology and Forest Entomology, Luiz de Queiroz College of Agriculture/University of São Paulo, Piracicaba, Brazil
Juan de Domini , Departament of Entomology and Acarology/ Laboratory of Insect Ecology and Forest Entomology, Luiz de Queiroz College of Agriculture/University of São Paulo, Piracicaba, Brazil
Wesley Godoy , Departament of Entomology and Acarology/ Laboratory of Insect Ecology and Forest Entomology, Luiz de Queiroz College of Agriculture/ University of São Paulo, Piracicaba, Brazil
At the present study, two hemiperan predators, Graptocleptes bicolor (Reduviidae) and Podisus nigripinus (Pentatomidae) were used to evaluate their functional responses on Spodoptera frugiperda (Lepidoptera, Noctuidae). The predators were individualized inside round arenas starving for 24 hours. After that, different prey densities were offered to each predator, as follows: 3,6,12,18,24 and 30 for 24 and 48 hours. The experiment was performed at two different temperatures, 20°C and 26°C. The results obtained show that at different temperatures, the functional response can vary from type II to type III.
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