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22 April 2020 Nonpreference for Oviposition of Sugarcane Borer (Lepidoptera: Crambidae) in Sugarcane Seedlings Is Influenced by Ripening Group and Plant Age
Vinícius Soares Sturza, Uemerson Silva da Cunha, Daniel Bernardi, Mayara Guelamann da Cunha Espinelli Greco, Dori Edson Nava
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Abstract

The sugarcane borer Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae) is considered the main sugarcane pest in many countries.The use of plant genotypes less preferred by insects are among the alternative methods to control this species which can be used alone or associated with other control methods such as biological control in Integrated Pest Management (IPM) programs. We assessed if the nonpreference for oviposition of D. saccharalis in sugarcane genotypes established by seedlings is different according to ripening group and plant age. For that purpose, four experiments were performed: 1) seedlings of early-ripening genotypes, 2) seedlings of late-ripening genotypes, 3) and mix of early- and late-ripening genotypes, seedlings, and 4) plants. There were least preferred genotypes for oviposition by D. saccharalis among seedlings of early-ripening (RB965902 and RB966928) and late-ripening (RB987935) genotypes. It was also observed when the groups were mixed as seedlings (RB965902) or plants (RB925345).The nonpreference for egg deposition in different ripening groups and plant age might be useful to integrate with other strategies for the management of D. saccharalis. Moreover, results of egg distribution might indicate the likely position of resistance factors on leaves, whether morphological or chemical.

© The Author(s) 2020. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.
Vinícius Soares Sturza, Uemerson Silva da Cunha, Daniel Bernardi, Mayara Guelamann da Cunha Espinelli Greco, and Dori Edson Nava "Nonpreference for Oviposition of Sugarcane Borer (Lepidoptera: Crambidae) in Sugarcane Seedlings Is Influenced by Ripening Group and Plant Age," Environmental Entomology 49(3), 692-698, (22 April 2020). https://doi.org/10.1093/ee/nvaa039
Received: 5 November 2019; Accepted: 24 March 2020; Published: 22 April 2020
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KEYWORDS
eggs
plant resistance
Poaceae
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