Pesquisa Agropecuária Brasileira (2011) 46, 578-585

Luciane Modenez Saldivar Xavier, Raúl Alberto Laumann, Miguel Borges, Diego Martins Magalhães, Evaldo Ferreira Vilela and Maria Carolina Blassioli-Moraes (2011)
Trichogramma pretiosum attraction due to the Elasmopalpus lignosellus damage in maize
Pesquisa Agropecuária Brasileira 46 (6), 578-585
Abstract: The objective of this work was to evaluate if corn plants damaged by the lesser cornstalk borer (Elasmopalpus lignosellus) larvae release volatile organic compounds capable of attracting the egg parasitoid Trichogramma pretiosum. The treatments consisted of plants subjected to harm caused by E. lignosellus larvae, plants subjected to mechanical damage, and undamaged plants. The parasitoid was more attracted by the volatiles released by the insect damaged plants than to those released by undamaged corn plants, after 24 and 72 hours. The volatiles (Z)-3-hexenyl acetate, β-pinene, β-myrcene, (E)-4,8-dimethylnona-1,3,7-triene, and benzothiazole were released in significantly larger quantities by damaged plants. Volatiles released by corn plants damaged by E. lignosellus larvae may act as an indirect defense, attracting by T. pretiosum.
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Full text of article
Database assignments for author(s): Raúl Alberto Laumann, Maria Carolina Blassioli-Moraes, Miguel Borges

Research topic(s) for pests/diseases/weeds:
biocontrol - natural enemies
Research topic(s) for beneficials or antagonists:
environment/habitat manipulation

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Elasmopalpus lignosellus	Maize/corn (Zea mays)	Brazil (south)
Trichogramma pretiosum (parasitoid)	Elasmopalpus lignosellus	Maize/corn (Zea mays)