Interaction effects of farm-scale management of natural enemy resources and the surrounding seminatural habitat on insect biological control

Lavandero, Blas; Maldonado-Santos, Enrique; Muñoz-Quilodran, Estefania; González-Chang, Mauricio; Zepeda-Paulo, Francisca; Salazar-Rojas, Ángel; Villegas, Cinthya

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dc.contributor.author	Lavandero, Blas
dc.contributor.author	Maldonado-Santos, Enrique
dc.contributor.author	Muñoz-Quilodran, Estefania
dc.contributor.author	González-Chang, Mauricio
dc.contributor.author	Zepeda-Paulo, Francisca
dc.contributor.author	Salazar-Rojas, Ángel
dc.contributor.author	Villegas, Cinthya
dc.date.accessioned	2025-06-12T14:14:50Z
dc.date.available	2025-06-12T14:14:50Z
dc.date.issued	2025
dc.identifier.uri	http://repositorio.ucm.cl/handle/ucm/6123
dc.description.abstract	Agricultural land use and its disruption of natural landscapes threaten the provision of ecosystem services, such as biological control by natural enemies, because of habitat simplification and management intensification. However, most studies that evaluate the effect of local management practices rarely identify and include other important predictors such as landscape compositional values. We studied the effect of adding flower strips at farms on the control of aphids in a seminatural habitat (SNH) gradient. We found significantly less aphids on farms with flower strips and more SNH at the second sampling date as well as a greater proportion of mummies with flowers early in the season, with a greater proportion of mummies at a greater %SNH at the end of the season. Foraging predators responded to the %SNH of farms without flowers only on the second sampling date, which coincided with their highest mean abundances. Our data suggests that aphid parasitism was enhanced by flowers, having a potential effect early in the season, which ultimately explained the reduction in aphid numbers thereafter. On the other hand, the effects perceived on predator abundances seemed to be more date- and landscape-sensitive. Flower strips of faba beans and buckwheat in the field as well as the %SNH surrounding farms positively affected Diaeretiella rapae and could therefore be an important management strategy to decrease Brevicoryne brassicae densities in brassica crops.	es_CL
dc.language.iso	en	es_CL
dc.rights	Atribución-NoComercial-SinDerivadas 3.0 Chile	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/cl/	*
dc.source	Insects, 16(3), 286	es_CL
dc.subject	Diaeretiella rapae	es_CL
dc.subject	Brevicoryne brassicae	es_CL
dc.subject	Seminatural habitats	es_CL
dc.subject	Flower strips	es_CL
dc.subject	Nectar provision	es_CL
dc.title	Interaction effects of farm-scale management of natural enemy resources and the surrounding seminatural habitat on insect biological control	es_CL
dc.type	Article	es_CL
dc.ucm.facultad	Facultad de Ciencias Agrarias y Forestales	es_CL
dc.ucm.indexacion	Scopus	es_CL
dc.ucm.indexacion	Isi	es_CL
dc.ucm.uri	mdpi.com/2075-4450/16/3/286	es_CL
dc.ucm.doi	doi.org/10.3390/insects16030286	es_CL