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Florida Entomologist
Article . 2020 . Peer-reviewed
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Florida Entomologist
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Article . 2020
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Effect of the Oviposition Period and Age of the Females of Dalbulus maidis (Hemiptera: Cicadellidae) in the Emergence of Egg Parasitoids

Authors: Becerra-Chiron, Iskra M.; Moya-Raygoza, Gustavo; Muñoz-Urias, Alejandro;

Effect of the Oviposition Period and Age of the Females of Dalbulus maidis (Hemiptera: Cicadellidae) in the Emergence of Egg Parasitoids

Abstract

Little is known about the effect of adult leafhopper age and its oviposition period on the emergence of egg parasitoids. The objective of this study was to determine the emergence rate of egg parasitoids that attack eggs of the corn leafhopper, Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae), when the adult corn leafhopper differs in age and is subject to different lengths of time for the oviposition process. A total of 4 treatments compared adult females of D. maidis of 2 different ages, young (2-wk-old) and mature (8-wk-old), as well as 2 periods of oviposition of different lengths (3 and 6 d). The adult parasitoids emerging from the eggs of D. maidis were Anagrus virlai Triapitsyn and Anagrus columbi Perkins (both Hymenoptera: Mymaridae). When analyzing the interactions of leafhopper age at oviposition, it was found that the age of the leafhopper females (2-wk-old vs 8-wkold) had a different effect on the number of oviposited eggs for the 2 oviposition periods. On the other hand, in the emergence of parasitoids, there were no significant differences between age and oviposition period, but the emergence of parasitoids was related to the number of eggs oviposited by D. maidis. Resumen Se conoce poco sobre el efecto de la edad de la chicharrita adulta y el periodo de oviposicion por la chicharrita en la emergencia de parasitoides de huevo. El objetivo del presente estudio fue determinar la tasa de emergencia en los parasitoides de huevos que atacan a la chicharrita del maiz Dalbulus maidis (DeLong) (Hemiptera: Cicadellidae) cuando la chicharrita adulta difiere en edad y esta sujeta a diferente longitud de tiempo durante el proceso de oviposicion. Se realizaron un total de 4 tratamientos, en donde se compararon hembras de D. maidis de 2 edades diferentes, jovenes (2 semanas de edad) y maduras (8 semanas de edad), asi como dos periodos de oviposicion con diferente longitud de tiempo (3 y 6 d). Los parasitoides adultos que emergieron de los huevos de D. maidis fueron Anagrus virlai Triapitsyn y Anagrus columbi Perkins (Hymenoptera: Mymaridae). Al analizar la interaccion entre los cuatro tratamientos, se encontro que la edad de las hembras (2 semanas de edad contra 8 semanas de edad) tiene un efecto diferente sobre el numero de huevos ovipositados para cada uno de los 2 periodos de oviposicion. Por otro lado, en la emergencia de parasitoides, no hubo diferencias entre la relacion edad de la chicharrita y periodo de oviposicion, pero la emergencia de parasitoides esta relacionada con el numero de huevos ovipositados por D. maidis. Key Words: corn leafhopper; parasitism; Hymenoptera View this article in BioOne

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
1
Average
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