BARBOSA, L. R.

BECCHI, L.

BRENNER, E.

CARVALHO, B.

JUNQUEIRA, L. R.

RODRIGUES, A.

WILCKEN, C.

English

Repository Open Access to Scientific Information from Embrapa

New technologies improve the useCleruchoides noackae (Hymenoptera:Mymaridae) in biocontrol ofThaumastocoris peregrinus (Hemiptera:Thaumastocoridae) in EucalyptusPlantationsLeonardo R. Barbosa ∗ 1, Luciane Becchi 2, Angelo Rodrigues 1, EstelaBrenner 1, Bianca Carvalho 1, Luis Renato Junqueira 3, Carlos Wilcken 21 Forestry (Embrapa) – Colombo - PR, 83411-000, Brazil2 Universidade Estadual Paulista, Faculdade de Ciências Agronômicas (UNESP) – Botucatu, SP, Brazil3 Forestry Science and Research Institute (IPEF) – Piracicaba-SP, BrazilThe bronze bug Thaumastocoris peregrinus Carpintero and Dellapé (Hemiptera: Thaumas-tocoridae), is an exotic sap-sucking insect introduced in Brazil in 2008, causing important lossesin Eucalyptus spp. wood production. The attacked area by the pest reach 245.000 ha in 2012,but in 2016 the area decreased to 80.000 ha. The main management strategy for T. peregri-nus is biocontrol using an egg parasitoid Cleruchoides noackae Lin and Huber (Hymenoptera:Mymaridae) introduced in Brazil from Australia in 2012. Two mass-rearing protocols for C.noackae were developed by Embrapa Florestas and are available for researchers, forestry com-panies and farmers. Since 2012, C. noackae was released in many states from Brazil: MinasGerais, São Paulo, Esṕırito Santo, Bahia, Rio Grande do Sul, Mato Grosso do Sul, Paraná,Distrito Federal, Goiás, Tocantins, Piaúı and Maranhão. The establishment of C. noackae inthe field was confirmed for Minas Gerais, São Paulo, Esṕırito Santo, Bahia, Rio Grande doSul and Maranhão states. Field and laboratory evaluations showed that C. noackae presentsa parasitism rate of 50%. The duration of the parasitoid life cycle (egg-adult) is affected bytemperature, ranging from 14 (30oC) to 46 days (15oC). The storage of T. peregrinus eggs for15 days at 5oC is viable for the multiplication of C. noackae in laboratory, without affecting thereproduction and development of the parasitoid, and the storage period of parasited eggs withsix days of development is viable during 7 days at 5oC. The supplies of food containing honeyplus pollen increase the parasitism, longevity and survival of C. noackae. Thus, as temperatureaffects C. noackae field establishment and parasitism rate the climatic changes will interferedirectly on its effectivity as biocontrol agent. Storing eggs and providing food supply are toolswhich help optimize a mass-rearing of C. noackae and provide flexibility for field releases andmanagement of the bronze bug in Brazilian eucalypt plantations.∗Speaker174

New technologies improve the use Cleruchoides noackae (Hymenoptera: Mymaridae) in biocontrol of Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) in Eucalyptus plantations.

http://www.alice.cnptia.embrapa.br/bitstream/doc/1097906/1/2018RACLeonardoIMECNewtechnologies.pdf

New technologies improve the use Cleruchoides noackae (Hymenoptera: Mymaridae) in biocontrol of Thaumastocoris peregrinus (Hemiptera: Thaumastocoridae) in Eucalyptus plantations.

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