Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)

<i>Eriopis connexa</i> is a native coccinelid predator in the Neotropical Region. In Argentina it is commonly found associated to sucking pests in several crops and among them aphids and whiteflies. These pests are usually controlled with newly developed systemic insecticides, such as th...

Descripción completa

Detalles Bibliográficos
Autores principales: Fogel, Marilina Noelia, Schneider, Marcela Inés, Desneux, Nicolas, González, María Belén, Ronco, Alicia Estela
Formato: Articulo
Lenguaje:Inglés
Publicado: 2013
Materias:
Ciencias Exactas
Ciencias Naturales
IPM
Sublethal effects
Embryogenesis
Development
Fertility
Fecundity
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/134907
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-134907
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Exactas
Ciencias Naturales
IPM
Sublethal effects
Embryogenesis
Development
Fertility
Fecundity
spellingShingle Ciencias Exactas
Ciencias Naturales
IPM
Sublethal effects
Embryogenesis
Development
Fertility
Fecundity
Fogel, Marilina Noelia
Schneider, Marcela Inés
Desneux, Nicolas
González, María Belén
Ronco, Alicia Estela
Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)
topic_facet Ciencias Exactas
Ciencias Naturales
IPM
Sublethal effects
Embryogenesis
Development
Fertility
Fecundity
description <i>Eriopis connexa</i> is a native coccinelid predator in the Neotropical Region. In Argentina it is commonly found associated to sucking pests in several crops and among them aphids and whiteflies. These pests are usually controlled with newly developed systemic insecticides, such as the neonicotinoids. However, the compatibility between selective pesticides and natural enemies is required before incorporating them in integrated pest management (IPM) packages. Within this frame, the objective of this study was to evaluate the side effect of various concentrations/doses of one commonly used neonicotinoid in vegetal crops, acetamiprid, on immature stages of <i>E. connexa</i> by dipping or topical exposure for eggs and larvae, respectively. Acetamiprid reduced egg hatching from 34 to 100 %. Moreover, the embryogenesis was disrupted by insecticide at early embryo stage at all tested concentrations. Second larval instar was more susceptible to acetamiprid than the fourth one and this susceptibility was positively related with the tested concentrations. On the other hand, the survival reduction at larval stage reached 100 % from 20 mg a.i./L (10 % of maximum field concentration). Besides, the reproduction of the females developed from topical bioassays on fourth instar larvae was strongly affected, with reduction in fecundity and fertility from 22 to 44 % and from 37 to 45 %, respectively. Overall the results showed a high toxicity of acetamiprid on immature stages of <i>E. connexa</i>, demonstrating that this broadly used insecticide could reduce biocontrol services provided by this predator and could also likely disturb IPM programs.
format Articulo
Articulo
author Fogel, Marilina Noelia
Schneider, Marcela Inés
Desneux, Nicolas
González, María Belén
Ronco, Alicia Estela
author_facet Fogel, Marilina Noelia
Schneider, Marcela Inés
Desneux, Nicolas
González, María Belén
Ronco, Alicia Estela
author_sort Fogel, Marilina Noelia
title Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)
title_short Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)
title_full Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)
title_fullStr Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)
title_full_unstemmed Impact of the neonicotinoid acetamiprid on immature stages of the predator <i>Eriopis connexa</i> (Coleoptera: Coccinellidae)
title_sort impact of the neonicotinoid acetamiprid on immature stages of the predator <i>eriopis connexa</i> (coleoptera: coccinellidae)
publishDate 2013
url http://sedici.unlp.edu.ar/handle/10915/134907
work_keys_str_mv AT fogelmarilinanoelia impactoftheneonicotinoidacetamipridonimmaturestagesofthepredatorieriopisconnexaicoleopteracoccinellidae
AT schneidermarcelaines impactoftheneonicotinoidacetamipridonimmaturestagesofthepredatorieriopisconnexaicoleopteracoccinellidae
AT desneuxnicolas impactoftheneonicotinoidacetamipridonimmaturestagesofthepredatorieriopisconnexaicoleopteracoccinellidae
AT gonzalezmariabelen impactoftheneonicotinoidacetamipridonimmaturestagesofthepredatorieriopisconnexaicoleopteracoccinellidae
AT roncoaliciaestela impactoftheneonicotinoidacetamipridonimmaturestagesofthepredatorieriopisconnexaicoleopteracoccinellidae
bdutipo_str Repositorios
_version_ 1764820455695319043

Ejemplares similares