Arrow Beatriz Dáder, Antonio Jesús Magaña, María Jesús Pascual-Villalobos, Aránzazu Moreno, Alberto Fereres, Elisa Viñuela 

Journal of Economic Entomology, Volume 117, Issue 6, December 2024, Pages 2450–2460, 

https://doi.org/10.1093/jee/toae201

Abstract

Nanoformulations of essential oils (EOs) improve stability of the active ingredient, and thereby its biological activity and persistence. Because compatibility of EOs with natural enemies is not explored sufficiently, we evaluated the impact of nanoformulations of EOs (aniseed, lemon) or pure products (farnesol) on different activities of the generalist predator Chrysoperla carnea (Stephens) (Neuroptera: Chrysopidae). In dual choice bioassay, chrysopid larvae were significantly attracted to aniseed-treated pepper disks and deterred by farnesol. Larval activities (resting, walking, and preying) on treated leaves infested with Myzus persicae (Sulzer) (Hemiptera: Aphididae) were compared. There were no differences among nanoemulsions, nor aphid consumption varied. We studied the toxicity of nanoformulations to larvae and evaluated their development after contact with treated leaf disks, ingestion of treated artificial diet, and both routes of exposure (application of biopesticides on aphid-infested plants). This is the first evidence of the compatibility of EO nanoformulations with C. carnea by single route of exposure. Whether any effect appeared, it was sublethal. Compounds significantly reduced aphid consumption after 6 h on double route exposure, but this negative short-term effect disappeared as time progressed. Our results showed the optimal biopesticide to apply depends on which biological feature of the natural enemy we targeted. The key element to introduce these nanoemulsions is to match their persistence period on the crop with the release of the appropriate biological stage of C. carnea. This reinforces the fact that the main activities of C. carnea can be substantially maintained in joint application with nanoemulsions of EOs.

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 Bulletin of Insectology, una revista de entomología de la Universidad de Bolonia, que acoge a estimados miembros de la SEEA en su consejo editorial, ha sido renovada

Investigadores de la Universidad Politécnica de Madrid y la Universidad Pública de Navarra publican un trabajo conjunto acerca de la interacción del parasitoide Hyposoter

didymator Thunberg (Hymenoptera: Ichneumonidae) con un baculovirus de amplio espectro de Autographa califórnica Speyer (Lepidoptera: Noctuidae), AcMNPV, para el control de Spodoptera exigua Hübner y Spodoptera littoralis Boisduval (Lepidoptera: Noctuidae).

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 Primera cita de Coccoidea encontrada en las cañadas del Teide por A. S. BALACHOWSKY y Manuel ARROYO y dedicada a éste último.

 A. S. BALACHOWSKY 

ANN. Soc. ENT. FE. (N. S.), 4 (i) 1968, 75 á 79.

FOTO 1  Pedro del Estal Padillo

FOTO 2   Pedro del Estal Padillo

JUAN ANTONIO SANCHEZ, ALINE CARRASCO, MICHELANGELO LA SPINA, MARÍA PÉREZ-MARCOS Y F. JAVIER ORTIZ-SÁNCHEZ

Insects 2020, 11, 26; doi:10.3390/insects11010026

JUAN ANTONIO SÁNCHEZ, ELENA LÓPEZ GALLEGO, MICHELANGELO LA-SAPINA.

Pest Manag Sci 2020; 76: 1422–1434

LUIS MIGUEL TORRES VILA

NOVIEMBRE 2001

 Gabriela Asplanato y Ferran Garcia Marí

 Alberto Urbaneja

Antonia Soto y Ferran Garcia Marí