By Helen E. Roy, Eric Wajnberg
Harmonia axyridis has been defined because the “most invasive ladybird on Earth”. It has an extended historical past of use as a classical organic regulate agent within the united states and extra lately in Europe. This beetle has been potent at controlling pest bugs in a number of crop platforms however it poses unacceptable hazards through impacting on non-target species as either an intraguild predator and competitor.
Written by way of well known scientists, this e-book is a synthesis of contemporary study on H. axyridis and gives informative insights into present views and destiny instructions. organic keep watch over is a vital part of sustainable agriculture however the contrast among a winning organic regulate agent and an invasive species should be slender. we are hoping that classes might be learnt from H. axyridis.
Dr Helen E. Roy is an ecologist with the NERC - Centre for Ecology and Hydrology within the united kingdom. She has event in insect ecology and behavior and has released greatly during this box. particularly her learn pursuits specialise in ladybirds and their interactions with different species together with pathogenic fungi. over the last 14 years Helen has studied such intraguild interactions in the context of organic keep watch over. She is presently the convenor of the IOBC WPRS (International agency of organic regulate) research team on advantages and hazards linked to unique organic keep an eye on Agents.
Dr Éric Wajnberg is a inhabitants biologist specialized in inhabitants genetics, behavioural ecology and statistical modelling. He develops theoretical techniques - generally in line with Monte Carlo simulations - and experiments are carried out which will ensure the predictions got. he's additionally a professional in organic regulate (past Secretary normal of the overseas organization of organic regulate - IOBC), with greater than two decades of labor with insect parasitoids. He has already released numerous books at the use of insect parasitoids in organic keep watch over programmes opposed to crop pests.
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Extra info for From Biological Control to Invasion: the Ladybird Harmonia axyridis as a Model Species
The negative impacts of a biological control agent can be defined as any negative effect, which can be named and measured, such as direct and indirect negative effects on non-target organisms and negative effects on the environment. The risk of negative effects of the release of a biological control agent is the product of the likelihood (L) of impact and the magnitude (M) of impact. The likelihood and magnitude of five groups (ecological determinants) of risks are usually considered: establishment, dispersal, host range, direct effects, and indirect non-target effects.
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Axyridis (Riddick et al. 2004). However, further work is needed to develop formulations suitable for exterior use on homes (Riddick et al. 2004). In Europe, the presence of some type of aggregation pheromone was suggested for guiding A. bipunctata to the same overwintering locations every year (Majerus 1997). Nalepa et al. (2000) suggest that H. axyridis does not rely on volatile chemical cues to locate overwintering locations. However, further work like that of Brown et al. (2006) is needed to explore the role of volatiles emitted by adult H.