Results 21 to 30 of about 335 (161)

Comment on “Invasive Harlequin Ladybird Carries Biological Weapons Against Native Competitors” [PDF]

Science, 2013
We comment on the implications that Vilcinskas et al . (Reports, 17 May 2013, p. 862) attach to the finding that the exotic, invasive ladybird Harmonia axyridis carries microsporidia to which this species is insensitive but that is lethal to species that are native to the invaded areas.
de Jong, P.W., van Lenteren, J.C., Raak-van den Berg, C.L.   +2 more
  +10 more sources

Treating green pea aphids, Myzus persicae, with azadirachtin affects the predatory ability and protective enzyme activity of harlequin ladybirds, Harmonia axyridis

Ecotoxicology and Environmental Safety, 2021
As a natural enemy of green peach aphids, harlequin ladybirds, Harmonia axyridis Pallas (Coleoptera: Coccinellidae), are also indirectly affected by azadirachtin.
Deqiang Qin, Benju Liu, Peiwen Zhang, Qun Zheng, Peiru Luo, Cuiyi Ye, Weihua Zhao, Zhixiang Zhang   +7 more
doaj   +1 more source

Assessment of the Harlequin Ladybird's (Harmonia Axyridis) Resistance to the Most Commonly Used Active Substances in Insecticides

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2021
The objective of this study was to find out if useful insects - in this case, harlequin ladybirds (Harmonia axyridis) - are affected by plant protection products (PPP) to the same extent as pests and if this species shows any levels of resistance to ...
Aneta Nečasová, Eva Hrudová, Marek Seidenglanz, Radovan Pokorný   +3 more
doaj   +1 more source

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

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

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

Geographic variation in evolutionary rescue under climate change in a crop pest-predator system. [PDF]

Evol Appl
Abstract Species distribution models (SDMs) are often built upon the “niche conservatism” assumption, such that they ignore the possibility of “evolutionary rescue” and may underestimate species' future range limits under climate change. We select aphids and ladybirds as model species and develop an eco‐evolutionary model to explore evolutionary rescue
Ge X, Newman JA, Griswold CK.
europepmc   +2 more sources

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

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