Results 31 to 40 of about 7,330 (160)

Actions on mammalian and insect nicotinic acetylcholine receptors of harmonine-containing alkaloid extracts from the harlequin ladybird Harmonia axyridis [PDF]

, 2020
The harlequin ladybird, Harmonia axyridis (H. axyridis), possesses a strong chemical defence that has contributed to its invasive success. Ladybird beetle defensive chemicals, secreted in response to stress and also found on the coating of laid eggs, are
Mellor, IR, Satelle, D., Birkett, MA, Birkett, Michael A., Rohit N. Patel, Mellor, I. R., Patel, Rohit N., Mellor, Ian R., Duce, IR, David B. Sattelle, David P. Richards, Sattelle, DB, Birkett, M. A., Richards, DP, Richards, D., Ian R. Duce, Duce, I. R., Sattelle, David B., Richards, David P., Ian R. Mellor, Patel, R., Patel, RN, Duce, Ian R., Michael A. Birkett, Birkett, Mike   +24 more
core   +2 more sources

Scientific opportunities presented by the arrival of the harlequin ladybird, Harmonia axyridis, in Britain

, 2005
The first confirmed report of the harlequin ladybird, Harmonia axyridis, in Britain was of a male melanic found in Sible Heddingham, Essex, on 19th September 2004.
Majerus, M.E.N., Roy, H.E.
core   +4 more sources

The interaction of <i>Serratia</i> bacteria and harmonine in harlequin ladybird confers an interspecies competitive edge. [PDF]

Proc Natl Acad Sci U S A
The harlequin ladybird, Harmonia axyridis , is a predatory beetle used globally to control pests such as aphids and scale insects. Originating from East Asia, this species has become highly invasive since its introduction in the late 19th century to Europe and North America, posing a threat ...
Zhang C, Zhou H, He K, Xiao Y, Chen M, Zuo Z, Shu R, Geng Y, Jin S, Mei Y, He B, Li F.   +11 more
europepmc   +3 more sources

Harmonia axyridis (Coleoptera: Coccinellidae) in Serbia: Its presence on aphid-infested plants and co-occurrence with native aphidophagous coccinellids [PDF]

Pesticidi i Fitomedicina, 2020
The presence of the invasive coccinellid Harmonia axyridis in aphid colonies on plants, as well as its co-occurrence with native coccinellid predators was studied in the period 2011-2020.
Jovičić Ivana, Radonjić Anđa, Kljajić Petar, Andrić Goran, Pražić-Golić Marijana, Petrović-Obradović Olivera   +5 more
doaj   +1 more source

First record of Hesperomyces virescens (Laboulbeniales, Ascomycota) on Harmonia axyridis (Coccinellidae, Coleoptera) in Poland

Acta Mycologica, 2016
Hesperomyces virescens Thaxt. is a fungal parasite of coccinellid beetles. One of its hosts is the invasive harlequin ladybird Harmonia axyridis (Pallas). We present the first records of this combination from Poland.
Michał Gorczak, Marta Tischer, Julia Pawłowska, Marta Wrzosek   +3 more
doaj   +1 more source

Parasitylenchus bifurcatus n. sp. (Tylenchida: Allantonematidae) parasitizing Harmonia axyridis (Coleoptera: Coccinellidae)

Parasites & Vectors, 2012
Background The harlequin ladybird, Harmonia axyridis Pallas (Coleoptera: Coccinellidae) is native to central and eastern Asia and was purposely introduced into Europe to control aphids.
Poinar George O, Steenberg Tove
doaj   +1 more source

Long Term Monitoring in Switzerland Reveals That Adalia bipunctata Strongly Declines in Response to Harmonia axyridis Invasion

Insects, 2020
A long-term monitoring was conducted at 40 sites in four different habitats in north-western Switzerland to observe changes in populations of native ladybirds, following the invasion of the Asian harlequin ladybird, Harmonia axyridis.
Marc Kenis, Saidou Nacambo, Johan Van Vlaenderen, Renate Zindel, René Eschen   +4 more
doaj   +1 more source

Double Infections of the Invasive Ladybird Harmonia axyridis

Frontiers in Ecology and Evolution, 2022
The dramatic spread of invasive alien species over the past century is considered to be an important threat to ecosystems worldwide. The harlequin ladybird, Harmonia axyridis, from eastern Asia, is considered to be one of the most invasive species ...
Michiel D. de Groot, Michiel D. de Groot, Danny Haelewaters, Danny Haelewaters, Danny Haelewaters   +4 more
doaj   +1 more source

Spiroplasma infection in Harmonia axyridis - Diversity and multiple infection. [PDF]

PLoS ONE, 2018
The heritable endosymbiotic bacterium Spiroplasma is found in the harlequin ladybird Harmonia axyridis. The proportion of beetles infected with Spiroplasma in different native H. axyridis populations varies from 2% to 49%.
Irina Goryacheva, Alla Blekhman, Boris Andrianov, Denis Romanov, Ilya Zakharov   +4 more
doaj   +1 more source

Effects of Fluctuating Thermal Regimes and Pesticides on Egg Hatching of a Natural Enemy Harmonia axyridis (Coleoptera Coccinellidae)

Agronomy, 2023
The harlequin ladybird, Harmonia axyridis, is a valuable asset in integrated pest management (IPM); however, issues related to low-temperature storage and transportation have resulted in low hatching rate, while the use of pesticides may lead to non ...
Jingya Yu, Chong Li, Likun Dong, Runping Mao, Zhihua Wang, Zhangxin Pei, Letian Xu   +6 more
doaj   +1 more source