Effect of insecticides on Liriomyza sativae (Diptera: Agromyzidae) and its parasitoids in bean, Phaseolus vulgaris.

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dc.contributor.authorChirinos, Dorys T.
dc.contributor.corporatenameSociedad Colombiana de Entomología - Socolenspa
dc.contributor.corporatenameUniversidad del Vallespa
dc.date.accessioned2021-06-29T14:33:31Z
dc.date.available2021-06-29T14:33:31Z
dc.date.issued2017-06-30
dc.description.abstractLiriomyza sativae a notoriously polyphagous leafminer species, is one of the main causes of insecticide applications in the bean, Phaseolus vulgaris in Ecuador. However, there are several species of parasitoids associated with this insect which generally regulate its populations when there is no interference due to insecticide applications. Two studies in “El Misionero” Experimental Center, Guayas, Ecuador, where conducted in order to evaluate the importance of natural biological control by these parasitoids. In one of them, the population fluctuation of L. sativae and the incidence of its parasitoids were assessed on an insecticide free plot. In the other, the same factors were assessed in a field experiment comparing two treatments: 1. without insecticide applications and 2. with weekly applications of a commercial formulation of lambda cihalotrin + thiametoxam. Diversity of parasitoids associated with this leaf miner were observed in both cases. In the first study, low infestation (1.8 mines.leaflet-1) and high percentage of parasitism in mines (70.5 %) were observed. In the experiment the general averages of active larvae and percentages of parasitism resulted 11.8 ± 2.9 and 23.3 ± 5.0 % vs. 3.1 ± 0.8 and 61.8 ± 7.7 % for treated and untreated plants respectively. Three species of larval parasitoids, Closterocerus sp., Chrysocharis sp. and Neochrysocharis sp. (Hymenoptera: Eulophidae) and the larva-puparium parasitoid Ganaspidium sp. (Hymenoptera: Figitidae) were detected. The results show the importance of parasitoids as regulators of L. sativae populations and the interference on natural biological controls by the indiscriminate applications of insecticides.spa
dc.format.extent1 recurso en línea (6 páginas)spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.urihttps://hdl.handle.net/10893/20584
dc.language.isospaspa
dc.publisherUniversidad del Vallespa
dc.publisher.placeColombiaspa
dc.relation.citationendpage26spa
dc.relation.citationissue1spa
dc.relation.citationstartpage21spa
dc.relation.citationvolume43spa
dc.relation.ispartofjournalRevista Colombiana de Entomologíaspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.subject.ddcLeafminer
dc.subject.ddcUnbalance
dc.subject.ddcWasps
dc.subject.ddcMoscas minadoras
dc.subject.ddcDesbalances
dc.subject.ddcAvispas
dc.titleEffect of insecticides on Liriomyza sativae (Diptera: Agromyzidae) and its parasitoids in bean, Phaseolus vulgaris.spa
dc.typeArtículo de revistaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_6501spa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/articlespa
dc.type.redcolhttp://purl.org/redcol/resource_type/ARTspa
dc.type.versioninfo:eu-repo/semantics/publishedVersionspa
dspace.entity.typePublication
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85spa
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