Role of herbivore‐induced maize volatiles in the chemotactic behaviour of Telenomus podisi and Diceraeus melacanthus

Author:

Nascimento Izabela N.1,Michereff Mirian F. F.2ORCID,Pereira Walter E.1,Villas‐Boas Paulino R.3ORCID,Gusmão Marcos Rafael4ORCID,Caufield John5ORCID,Laumann Raúl A.6ORCID,Borges Miguel6ORCID,Blassioli‐Moraes Maria Carolina6ORCID

Affiliation:

1. Universidade Federal da Paraíba – Centro de Ciências Agrárias – Areia‐PB Brazil

2. Bolsista de pós‐doutorado no Laboratório de Semioquímicos Embrapa Recursos Genéticos e Biotecnologia Brasília DF Brazil

3. Embrapa Instrumentação São Carlos SP Brazil

4. Embrapa Pecuária Sudeste Rodovia Washington São Carlos SP Brazil

5. Protecting Crops and the Environment Department Rothamsted Research Hertfordshire UK

6. Laboratório de Semioquímicos Embrapa Recursos Genéticos e Biotecnologia Brasília DF Brazil

Abstract

AbstractPlants respond indirectly to herbivore injury in a species‐specific way and emit a specific blend of volatiles that are attractive to the enemies of herbivores. We evaluated whether maize plants, Zea mays L. (Poaceae), can recognize herbivory damage from a generalist stink bug, Diceraeus melacanthus Dallas (Hemiptera: Pentatomidae). This species is not a common pest in maize, but is currently found on maize crops in Brazil. We aimed to answer the following questions: (1) does D. melacanthus use maize plant volatiles for host location? (2) Do maize plant chemical volatile profiles change due to feeding by D. melacanthus? And (3) do herbivore‐induced plant volatiles (HIPVs) emitted by maize plants play a role in the foraging behaviour of the generalist stink bug egg parasitoid Telenomus podisi Ashmead (Hymenoptera: Scelionidae)? The results show that females of D. melacanthus do not use constitutive volatiles or HIPVs as host location cues. However, feeding by D. melacanthus activates maize indirect defence, inducing emission of HIPVs and attracting the herbivore's enemy. Thus, strengthening indirect defence of plants can be a strategy to protect crops in the field by recruiting natural enemies through chemical information, as an additional approach to control D. melacanthus within an integrated pest management program.

Funder

Conselho Nacional de Desenvolvimento Científico e Tecnológico

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior

Empresa Brasileira de Pesquisa Agropecuária

Publisher

Wiley

Subject

Insect Science,Ecology, Evolution, Behavior and Systematics

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