Results 41 to 50 of about 70,712 (215)

Impacto de aplicaciones de malatión sobre insectos benéficos y efectos en Bemisia tabaci en algodonero

open access: yesEcosistemas y Recursos Agropecuarios
Las aplicaciones de malatión ULV para el control del picudo del algodonero Anthonomus grandis Boheman, eliminan parte de los enemigos naturales, provocando el resurgimiento de la mosca blanca Bemisia tabaci.
Jorge Maltos-Buendía   +5 more
doaj   +1 more source

Modelo predictivo de la severidad del tizón foliar por Cercospora kikuchii mediante variables meteorológicas

open access: yesAgronomía Mesoamericana, 2023
Introducción. En el manejo integrado de enfermedades es importante incorporar elementos como umbrales de daño económico, monitoreo y sistemas de pronóstico de riesgo, los cuales constituyen herramientas para definir estrategias de control de las mismas.
M. Lavilla   +3 more
doaj  

Local canopy cover, shade tree identity and landscape tree cover shape leaf‐cutter ant nest density and herbivory in cacao agroforestry systems

open access: yesJournal of Applied Ecology, Volume 63, Issue 4, April 2026.
Our findings provide practical guidance for agroforestry management by demonstrating that intercropping with selected species can mitigate damage from leaf‐cutter ants in cacao agroforests. At the landscape scale, high tree cover was associated with low herbivory rates, emphasising the need to maintain or restore forested habitats.
Blanca Ivañez‐Ballesteros   +8 more
wiley   +1 more source

Properties of the Intergalactic Magnetic Field Constrained by Gamma-ray Observations of Gamma-Ray Bursts [PDF]

open access: yes, 2017
The magnetic field in intergalactic space gives important information about magnetogenesis in the early universe. The properties of this field can be probed by searching for radiation of secondary e$^+ $e$^-$ pairs created by TeV photons, that produce ...
Dermer, C. D., Dhuga, K. S., Veres, P.
core   +2 more sources

Efecto de aceites botánicos en la entomofauna asociada al cultivo de papaya en respuesta al control de ácaros

open access: yesAIA Avances en Investigación Agropecuaria
Introducción. Los ácaros son una de las principales plagas en la papaya y su control convencional se basa en el uso de pesticidas químicos sintéticos que, aunque son eficientes, generan resistencia debido al ciclo de vida corto de los ácaros e impacto ...
Adrián Israel Fernández-Basto   +4 more
doaj   +1 more source

Chrysoperla externa (Neuroptera: Chrysopidae) as a Potential Biological Control Agent of Raoiella indica (Acari: Tenuipalpidae)

open access: yesEntomologia Experimentalis et Applicata, Volume 174, Issue 4, Page 335-342, April 2026.
First and third instar Chrysoperla externa showed efficient predatory capacity at low R. indica density, but second instar C. externa exhibits a density‐dependent predatory ability. The lacewing C. externa shows promise as a biocontrol agent for R. indica in coconut because it consumed 8362 R. indica females across all its larval instars.
Luis O. Viteri   +6 more
wiley   +1 more source

FIRST RECORD IN ITALY OF PSYLLAEPHAGUS BLITEUS RIEK (Hymenoptera Encyrtidae) PARASITOID OF GLYCASPIS BRIMBLECOMBEI MOORE (Hemiptera Psyllidae) [PDF]

open access: yes, 2011
Psyllaephagus bliteus Riek (Hymenoptera Encyrtidae), parasitoid of the red gum lerp psyllid Glycaspis brimblecombei Moore (Hemiptera Psyllidae), has been recorded for the first time in Italy in September 2011. The arrival of P.
Caleca, Virgilio   +2 more
core  

Comparación del nivel de consumo de diferentes estadios larvales de Coccinella septempunctata sobre Rhopalosiphum maidis

open access: yesAIA Avances en Investigación Agropecuaria
Introducción. Rhopalosiphum maidis ocasiona daño directo e indirecto en diferentes cultivos agrícolas, por tanto, reduce los rendimientos (Salman et al., 2017; Chen et al., 2019).
Dania Itzel Martínez-Rodríguez   +2 more
doaj   +1 more source

El género Psittacanthus (Loranthaceae) en Veracruz, México

open access: yesActa Botanica Mexicana, 2018
Antecedentes y Objetivos: El género Psittacanthus es el más grande de la familia Loranthaceae, habita en zonas templadas y tropicales del Nuevo Mundo, con un amplio grupo de hospederos.
Gonzalo Castillo-Campos   +2 more
doaj   +1 more source

Surveillance of ash trees under multiple threats: Integrating emerald ash borer and ash dieback dynamics with stakeholder behaviour

open access: yesJournal of Applied Ecology, Volume 63, Issue 3, March 2026.
Tree‐health policies must balance identifying likely entry points and deployment of traps, targeted information campaigns and surveillance subsidies for land managers. Our unique, cross‐disciplinary approach can be applied to other pest/pathogen systems to inform tree‐health plans and how to balance resources.
Vasthi Alonso Chávez   +11 more
wiley   +1 more source

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