Results 131 to 140 of about 7,039 (159)

The Spread of the Harlequin Ladybird in Britain

Outlooks on Pest Management, 2011
Helen E Roy, Richard Comont
exaly   +3 more sources

Entomopathogenic fungi recorded from the harlequin ladybird, Harmonia axyridis

Journal of Invertebrate Pathology, 2009
Entomopathogenic fungi were recorded from field samples of the harlequin ladybird Harmonia axyridis, an invasive coccinellid that has recently arrived in Denmark. Larvae, pupae and adults were found to be infected by Isaria farinosa, Beauveria bassiana and species of Lecanicillium. This is the first record of entomopathogenic fungi infecting larvae and
Tove Steenberg
exaly   +4 more sources

The Harlequin ladybird continues to invade southeastern Europe

Biological Invasions, 2010
The ladybird Harmonia axyridis (Pallas) is considered one of the most serious invasive species around the globe. It has spread all over North America and Western Europe, while data from southeastern Europe, especially in the Mediterranean region, are scarce. In this study we present the first confirmed data of the spread of H.
Igor Stanković, Toni Koren
exaly   +3 more sources

Cold tolerance of the harlequin ladybird Harmonia axyridis in Europe

Journal of Insect Physiology, 2010
As an essential aspect of its invasive character in Europe, this study examined the cold hardiness of the harlequin ladybird Harmonia axyridis. This was done for field-collected populations in Belgium overwintering either in an unheated indoor or an outdoor hibernaculum. The supercooling point, lower lethal temperature and lower lethal time at 0 and -5
Patrick de Clercq, Luc Tirry, Jeffrey S Bale   +2 more
exaly   +4 more sources

Does the non-native Harlequin ladybird disrupt the feeding behaviour of the native two-spot ladybird?

Bulletin of Entomological Research, 2021
AbstractSince its arrival in 2004, the non-native Harlequin ladybird Harmonia axyridis (Coleoptera: Coccinellidae) has rapidly spread throughout Britain, and it is now the most common coccinellid in England. There have since been concerns about the detrimental effects it may have on native coccinellids because there is a strong correlation between the ...
Jade A. Hemsley, John M. Holland
openaire   +2 more sources

Harmonia axyridis (harlequin ladybird).

2021
Abstract H. axyridis, a species of Asian origin, has been used as a biological control agent against aphids worldwide. The first releases were made in North America in 1916, but it was not until 1988 that the first individuals were found in the wild.
Helen Roy, Marc Kenis
openaire   +1 more source

Harlequin ladybird Harmonia axyridis Pall. (Coleoptera, Coccinellidae) in Armenia

Russian Journal of Biological Invasions, 2017
Information on the first finding (one specimen) in Armenia of an invasive species of beetle, harlequin ladybird Harmonia axyridis, is presented. Invasion from Georgia as a result of self-expansion or unintentional delivery is presumed.
M Yu Kalashian
exaly   +2 more sources

Potential diet regimens for laboratory rearing of the harlequin ladybird

BioControl, 2020
Harmonia axyridis Pallas (Coleoptera: Coccinellidae) is an invasive generalist predator, which has been used as a biological model to investigate several research questions and is also an effective biocontrol agent against agricultural pests. Its laboratory colonies are often maintained on natural prey that are costly, and thus alternative dietary ...
Ricupero M., Dai C., Siscaro G., Russo A., Biondi A., Zappala Lucia   +5 more
openaire   +1 more source

Antennal sensory organs and glands of the harlequin ladybird, Harmonia axyridis

Entomologia Experimentalis et Applicata, 2020
AbstractHarmonia axyridis (Pallas) (Coleoptera: Coccinellidae) is a sub‐cosmopolitan species. Native to Asia, it has been released during the 20th century for classical and augmentative biological control of several herbivorous insects, mostly aphids and coccids. Despite its recognized positive impact on biological control, H.
Sevarika M., Rondoni G., Conti E., Romani R.   +3 more
openaire   +2 more sources

Probabilistic Neural Network for the Automated Identification of the Harlequin Ladybird (Harmonia Axyridis)

2013
This paper describes recent work in the UK to automate the identification of Harlequin ladybird species Harmonia axyridis using color images. The automation process involves image processing and the use of probabilistic neural network PNN as classifier, with an aim to reduce the number of color images to be examined by entomologists through pre-sorting
Mohd Zaki Ayob, E. D. Chesmore
openaire   +1 more source