Abstract

Forest plantations, especially eucalyptus, increase wood supply, avoid deforestation of native plants, and preserve local biodiversity. Defoliating caterpillars often reduce the productivity of these plantations. Rearing and releasing pentatomid predators is a strategy to manage these pests biologically. In this study, the predators Brontocoris tabidus (Signoret) and Podisus nigrispinus (Dallas) (both Heteroptera: Pentatomidae) were evaluated in a clonal eucalyptus (Eucalyptus urophylla Blake × Eucalyptus grandis W. Hill ex Maiden) (both Myrtaceae) plantation. Brontocoris tabidus dispersed further than P. nigrispinus over the 7-d trial. Males of both species dispersed more than females, and most P. nigrispinus were found within 10 m from the release point, whereas the majority of B. tabidus were observed between 15 and 30 m from their initial position of release. Resumo Plantios florestal, especialmente de eucalipto, garante o fornecimento madeira, evitando o desmatamento de florestas nativas e preserva a biodiversidade local. As lagartas desfolhadoras frequentemente reduzem a produtividade dessas plantacoes. A criacao e liberacao de pentatomideos predadores e uma estrategia para manejar essas pragas, biologicamente. Nesse estudo, os predadores Brontocoris tabidus (Signoret) e Podisus nigrispinus (Dallas) e (Heteroptera: Pentatomidae) foram avaliados em plantio clonal de eucalipto (Eucalyptus urophylla Blake × Eucalyptus grandis W. Hill ex Maiden) (Myrtaceae). Brontocoris tabidus dispersou mais que P. nigrispinus ao longo de sete dias de avaliacao. Machos de ambas as especies se dispersaram mais que as femeas, e a maioria dos individuos de P. nigrispinus foram localizados a 10 metros do ponto de liberacao enquanto a maioria de B. tabidus foram observados entre 15 a 30 metros da posicao inicial em que foram liberados. Key Words: distance traveled; longer coverage; lower density; releasing technique View this article in BioOne

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.