Results 91 to 100 of about 263,912 (315)

Controlling Ectoparasites on Welsh Organic Sheep Farms [PDF]

, 2003
1. Organophosphate (OP) based dips offer a broad spectrum control against all major ectoparasites in the UK. However, there is continuing controversy over the safety to dip operators and the environment. The use of OPs is prohibited by organic standards,
Frost, David, McLean, Dr Barbara
core  

Ant–aphid mutualism: the influence of Tapinoma ibericum (Hymenoptera: Formicidae) on Aphis gossypii (Hemiptera: Aphidae) control by commercial and spontaneous natural enemies

Insect Science, EarlyView.
The mutualism between Tapinoma ibericum ants and Aphis gossypii disrupts the biological control exerted by Aphidius colemani in greenhouse peppers. Ant exclusion increased parasitism and the presence of most natural enemies, although Aphidoletes aphidimyza was more abundant with ants.
Jesús Foronda, Estefanía Rodríguez, Mónica González, María del Mar Téllez, Carmen Robles‐Vallet, Pablo Barranco, Felipe Pascual, Francisca Ruano   +7 more
wiley   +1 more source

Competitive Interactions Between Generalist Predators and Their Effects on Shared and Non‐Shared Pests in a Greenhouse Crop

Entomologia Experimentalis et Applicata, EarlyView.
Orius laevigatus engages in unidirectional intraguild predation on Transeius montdorensis. Despite this, both predators coexisted and suppressed the shared thrips prey. Aphids, a non‐shared prey, were effectively controlled by O. laevigatus even when its population was limited due to intraguild predation. T.
Angelos Mouratidis, Jesica Pérez‐Rodríguez, Hessel van der Heide, Gerben J. Messelink   +3 more
wiley   +1 more source

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

Entomologia Experimentalis et Applicata, EarlyView.
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, Vanessa A. Lira, Giselle S. Freitas, Adriano P. Farias, Adriano S. Rêgo, Eugênio E. Oliveira, Adenir V. Teodoro   +6 more
wiley   +1 more source

Environmental stress influences reproductive success in male spider mites

Ecological Entomology, EarlyView.
This experiment explores how male juvenile food stress impacts reproductive traits in the haplodiploid spider mite Tetranychus urticae. Males exposed to juvenile food stress had lower reproductive success and females mated to these males also suffered reduced fitness as they were not able to produce optimal offspring sex ratios. The negative effects of
Elsa Noël, Margaux J. M. Lefebvre, Sophie Lefèvre, David M. Shuker, Alison B. Duncan   +4 more
wiley   +1 more source

Honey bee populations surviving Varroa destructor parasitism in Latin America and their mechanisms of resistance

Frontiers in Ecology and Evolution
The honey bee (Apis mellifera) parasitic mite, Varroa destructor, is considered one of the main causes of colony losses in European honey bee (EHB) populations around the world.
Ernesto Guzman-Novoa, Ernesto Guzman-Novoa, Miguel Corona, Miguel Corona, Mohamed Alburaki, Francisco José Reynaldi, Francisco José Reynaldi, Ciro Invernizzi, Ciro Invernizzi, Gregorio Fernández de Landa, Gregorio Fernández de Landa, Matías Maggi, Matías Maggi   +12 more
doaj   +1 more source

Mitigating ground effect on mini quadcopters with model reference adaptive control [PDF]

, 2019
Mitigating ground effect becomes a big challenge for autonomous aerial vehicles when they are flying in close proximity to the ground. This paper aims to develop a precise model of ground effect on mini quadcopters, provide an advanced control algorithm ...
Chan, SN, Kong, Z, Lee, S, Wei, P
core  

The exposomal imprint on rosacea: More than skin deep

Journal of the European Academy of Dermatology and Venereology, EarlyView.
Rosacea reflects systemic and environmental interactions, not just a skin disorder. Key factors include environmental triggers, genetic and microbiome influences, diagnostic gaps in skin of colour and social determinants. Advances in multi‐omics and exposome integration highlight pathways towards precision medicine, prevention and equitable, patient ...
Katerina Grafanaki, Daniella Bakoli Sgourou, Alexandros Maniatis, Efstathia Pasmatzi   +3 more
wiley   +1 more source

Africanized honey bees in Colombia exhibit high prevalence but low level of infestation of Varroa mites and low prevalence of pathogenic viruses [PDF]

, 2020
Víctor Manuel Tibatá, Andrés Sánchez, Evan Young-Palmer, Howard Junca, Victor Manuel Solarte, Shayne Madella, Fernando Ariza, Judith Figueroa, Miguel Corona   +8 more
openalex   +1 more source

Evaluating Electric Harps and Muzzles to Mitigate the Impact of Vespa velutina nigrithorax at Beehives

Journal of Applied Entomology, EarlyView.
ABSTRACT The Asian hornet (Vespa velutina nigrithorax) poses a significant threat to the beekeeping industry. Using an experimental apiary of 36 hives, we simultaneously evaluated the effectiveness of two mitigation measures—muzzles and electric harps—in reducing the impact of Asian hornets on honey bee colonies.
Núria Roura‐Pascual, Josep M. Bas, Cang Hui, Quim Canelles, Jordi Artola, Kilian Sampol, Gerard Bota, Narcís Vicens, Emili Bassols, Cristian Pérez‐Granados   +9 more
wiley   +1 more source