Interactions among Myzus persicae, predators and parasitoids may hamper biological control in Mediterranean peach orchards
Autor/a
Aparicio, Yahana
Gabarra, Rosa
Arnó, Judit
Fecha de publicación
2020-09-21ISSN
0171-8177
Resumen
The green peach aphid, Myzus persicae (Sulzer) (Hemiptera: Aphididae), is a serious pests of peach trees. It has traditionally been managed with insecticides, but social concerns on insecticides use claim for alternative control strategies. Aphids are attacked by many natural enemies, so the use of conservation biological control could be feasible. However, the existence of a wide array of natural enemies increases the chances of intraguild predation and can also trigger behavioral changes in aphids. To evaluate interactions among predators and parasitoids of M. persicae, we conducted laboratory experiments to determine the contribution of three predators, Episyrphus balteatus DeGeer (Diptera: Syrphidae), Aphidoletes aphidimyza (Rondani) (Diptera: Cecidomyiidae), and Orius majusculus (Reuter) (Hemiptera: Anthocoridae), to the control of M. persicae. In addition, we examined changes in aphid behavior due to cornicle exudate and the interaction of the aforementioned predators with the parasitoid Aphidius matricariae (Haliday) (Hymenoptera: Braconidae). Our results showed that the most voracious predator was E. balteatus followed by A. aphidimyza. At 72 hours, the aphid population had tripled in the arenas where cornicle exudate was present compared to those where it was absent. In a confined environment, the presence of a single individual of A. aphidimyza and O. majusculus in conjunction with the parasitoid increased the aphid population instead of reducing it. However, the fact that all predators avoided feeding on mummified aphids and that A. aphidimyza and O. majusculus preferred to feed on unparasitized aphids highlight the possibility that parasitoids and predators can jointly contribute to aphid control.
Tipo de documento
Artículo
Versión del documento
Versión publicada
Lengua
English
Materias (CDU)
632 - Enfermedades y protección de las plantas
Páginas
12
Publicado por
Schweizerbart Science Publishers
Publicado en
Entomologia Generalis
Citación
Aparicio, Yahana, Rosa Gabarra, and Judit Arnó. 2020. "Interactions Among Myzus Persicae, Predators And Parasitoids May Hamper Biological Control In Mediterranean Peach Orchards". Entomologia Generalis 40 (3): 217-228. doi:10.1127/entomologia/2020/0946.
Número del acuerdo de la subvención
MINECO/Programa Estatal de fomento de la investigación científica y técnica de excelencia/AGL2013-49164-C2-2-R/ES/Control integrado de plagas en cultivos hortofruticolas/
MINECO/Programa Estatal de I+D+I orientada a los retos de la sociedad/AGL2016-77373-C2-1-R/ES/Avances en el control intregrado de plagas en cultivos hortofrutícolas: mejora del control biológico por conservación en hortícolas y frutales/CIPTOOLS
Program
Protecció Vegetal Sostenible
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