Arrival, Establishment, and Habitat Use of the Multicolored Asian Lady Beetle (Coleoptera: Coccinellidae) in a Michigan Landscape

Abstract

A monitoring system established within an array of cultivated and uncultivated habitats was used to characterize the first 5 yr of establishment of the exotic multicolored Asian lady beetle, Harrrwnia axyridis (Pallas), in an agricultural landscape of southwestern Michigan. Population trends over time were summarized for II species of resident cocci nell ids before ,md after the arrival of H. axyridis. In addition, annual population increase, habitat utilization patterns, and within-season population fluctuation for H. axyridis were analyzed. H. axyridis became a dominant coccinellid species in the landscape 4 yr after its arrival. Adults of this species were found in all habitats monitored, including early secondary succession, poplar plantation, alfalfa, soybean, corn, and winter wheat. Significant population peaks were observed early and late in the season, depending on the habitat. Resident species that appear affected by the establishment of H. axyridis are Brachiacantha ursina (F.), Cycloneda /nunda (Say), and Chi/acarus stigma (Say). However, to attribute the decline on the numbers of those species to H. axyridis will require further assessment.

Characterization of a newly established aggregation of the invasive ladybeetle Harmonia axyridis and current status of the invader in Spain

“…The arrival of H. axyridis is associated to drastic changes in coccinellid assemblages all around the word (Colunga-Garcia & Gage, 1998;Michaud, 2002;Lucas et al, 2007a,b;Pell et al, 2008;Bélanger & Lucas, 2011;Roy et al, 2012). Catalonia has a diverse agriculture dominated by winter cereals, maize, alfalfa, vegetables in open air and greenhouse, fruit orchards and vineyards.…”

Harmonia axyridis: a threat to Brazilian Coccinellidae?

“…In Michigan the species Brachiacantha ursina (Fabricius, 1787), Cycloneda munda (Say, 1835) and Chilocorus stigma (Say, 1835), were apparently affected by the presence of H. axyridis (Colunga-Garcia & Gage 1998).…”

Occurrence of Harmonia axyridis (Coleoptera: Coccinellidae) in field crops

“…In Belgium, H. axyridis was first observed in field crops (potatoes) in 2003 (Jansen & Warnier, 2004). H. axyridis is often considered to be semi-arboreal (Hodek, 1973) but it has become ubiquitous in many parts of the world including America, Europe and Africa (Brown et al, 2011) where it occurs in agricultural areas (Colunga-Garcia & Gage, 1998;Lucas et al, 2007), riparian zones (Adriaens et al, 2008) and orchards (Michaud, 2002;Burgio et al, 2008).…”