Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions

Spodoptera frugiperda Smith and Helicoverpa gelotopoeon (Dyar) are important agricultural pests of several crops. The aim of the present work was to evaluate the susceptibility of larvae of both insects to an isolate of Steinernema diaprepesi Nguyen & Duncan under laboratory conditions, as w...

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Autores principales:	Caccia,Milena G, Del Valle,Eleodoro, Doucet,Marcelo E, Lax,Paola
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Infective juveniles biological control
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000100019
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spelling	oai:scielo:S0718-583920140001000192018-10-01Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditionsCaccia,Milena GDel Valle,EleodoroDoucet,Marcelo ELax,Paola Infective juveniles biological control Spodoptera frugiperda Smith and Helicoverpa gelotopoeon (Dyar) are important agricultural pests of several crops. The aim of the present work was to evaluate the susceptibility of larvae of both insects to an isolate of Steinernema diaprepesi Nguyen & Duncan under laboratory conditions, as well as the capacity of the nematode to multiply on these lepidoterans. Larvae (n = 15) were exposed to 0 (control), 50, and 100 infective juveniles (IJs) per Petri dish. Mortality was evaluated every 24 h during 6 d, and emerging IJs were counted. Mortality of S. frugiperda was 93% and 100% with 50 and 100 IJs dosage, and 87% and 93% in H. gelotopoeon, respectively. The production of IJs was significantly different between doses (P ≤ 005) for S. frugiperda (11 329 with 50 IJs vs. 27 155 with 100 IJs) but not for H. gelotopoeon (19 830 vs. 26 361, respectively). This is the first study evaluating the susceptibility of these lepidopterans to S. diaprepesi. These results encourage the possibility of using this nematode for biological control of both pests.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.1 20142014-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000100019en10.4067/S0718-58392014000100019
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Infective juveniles biological control
spellingShingle	Infective juveniles biological control Caccia,Milena G Del Valle,Eleodoro Doucet,Marcelo E Lax,Paola Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions
description	Spodoptera frugiperda Smith and Helicoverpa gelotopoeon (Dyar) are important agricultural pests of several crops. The aim of the present work was to evaluate the susceptibility of larvae of both insects to an isolate of Steinernema diaprepesi Nguyen & Duncan under laboratory conditions, as well as the capacity of the nematode to multiply on these lepidoterans. Larvae (n = 15) were exposed to 0 (control), 50, and 100 infective juveniles (IJs) per Petri dish. Mortality was evaluated every 24 h during 6 d, and emerging IJs were counted. Mortality of S. frugiperda was 93% and 100% with 50 and 100 IJs dosage, and 87% and 93% in H. gelotopoeon, respectively. The production of IJs was significantly different between doses (P ≤ 005) for S. frugiperda (11 329 with 50 IJs vs. 27 155 with 100 IJs) but not for H. gelotopoeon (19 830 vs. 26 361, respectively). This is the first study evaluating the susceptibility of these lepidopterans to S. diaprepesi. These results encourage the possibility of using this nematode for biological control of both pests.
author	Caccia,Milena G Del Valle,Eleodoro Doucet,Marcelo E Lax,Paola
author_facet	Caccia,Milena G Del Valle,Eleodoro Doucet,Marcelo E Lax,Paola
author_sort	Caccia,Milena G
title	Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions
title_short	Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions
title_full	Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions
title_fullStr	Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions
title_full_unstemmed	Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions
title_sort	susceptibility of spodoptera frugiperda and helicoverpa gelotopoeon (lepidoptera: noctuidae) to the entomopathogenic nematode steinernema diaprepesi (rhabditida: steinernematidae) under laboratory conditions
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000100019
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Susceptibility of Spodoptera frugiperda and Helicoverpa gelotopoeon (Lepidoptera: Noctuidae) to the entomopathogenic nematode Steinernema diaprepesi (Rhabditida: Steinernematidae) under laboratory conditions

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