Virulencia de nematodos entomopatogenos para el control del salivazo Aeneolamia varia (Hemiptera: Cercopidae) en cana de azucar/Virulence of entomopathogenic nematodes to control Aeneolamia varia (Hemiptera: Cercopidae) in sugarcane

The spittlebug, Aeneolamia varia (Hemiptera: Cercopidae) is a limiting pest of sugarcane crops in Venezuela. In Colombia, this species has been recorded for over 40 years in Llanos Orientales, attacking pastures. Only in 2007 this insect was detected in sugarcane crops in the Cauca Valley, where we...

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Published inRevista colombiana de entomología Vol. 38; no. 2; p. 260
Main Authors Salguero, Carlos Andres Moreno, Pardey, Alex Enrique Bustillo, Nunez, Juan Carlos Lopez, Valderrama, Ulises Castro, Sanchez, Gerson Dario Ramirez
Format Journal Article
LanguageSpanish
Published 01.07.2012
Subjects
Cercopidae
Hemiptera
Heterorhabditis
Heterorhabditis bacteriophora
Nematoda
Steinernema
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Summary:The spittlebug, Aeneolamia varia (Hemiptera: Cercopidae) is a limiting pest of sugarcane crops in Venezuela. In Colombia, this species has been recorded for over 40 years in Llanos Orientales, attacking pastures. Only in 2007 this insect was detected in sugarcane crops in the Cauca Valley, where we are looking at biological control agents, particularly entomopathogenic nematodes. In this study, we evaluated the virulence of three entomopathogenic nematode species selected in previous laboratory and greenhouse studies, Steinernema sp.1, Heterorhabditis bacteriophora and Heterorhabditis sp. (Gua 31), and two commercially aviable species, Steinernema sp. and Heterorhabditis sp., on IV instar nymphs of A. varia. The most virulent isolates were Heterorhabditis sp. (Gua 31) causing 42.3% of mortality at a dosage of 5 x 10 super( 10) JI/ha, and Heterorhabditis bacteriophora in dosage of 1.5 x 10 super( 11) JI/ha causing 76% of mortality on nymphs. This information is intended to give the farmer an effective alternative for the integrated management of A. varia.
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ISSN:0120-0488