Organizer: Arne Janssen
Whereas early attempts on biological pest control focused on specialist predators and parasitoids, the use of generalist predators has increased substantially during the last few decades. The obvious disadvantage of using generalist natural enemies compared to specialists is that generalists may attack non-target prey and other natural enemies, thus possibly obstructing the efficient control of other pests. The obvious advantage of generalist natural enemies is that they can control various pests, can feed on various food sources, and are thus more persistent in a crop than specialists. These advantages and disadvantages will be illustrated in this symposium with studies on the predatory mite Amblyseius swirskii, which is successfully used for the control of whiteflies, thrips and other pests in various greenhouse crops, but has been shown to interfere with natural enemies of other pests. Speakers from various continents will explain the pros and cons of using this predatory mite, suggest new control methodologies and review the history of success of A. swirskii. We expect that this will yield new insights in the use of generalist natural enemies for pest control.
A tentative list of speakers:
- Rose Buitenhuis, Les Shipp, Cynthia Scott-Dupree and Graeme Murphy.
- Vivek Kumar Yingfang Xiao, Cindy L. McKenzie and Lance Osborne.
- Laura Hewitt, Les Shipp, Rose Buitenhuis and Cynthia Scott-Dupree.
- Julie Faucher Delisle, Les Shipp and Jacques Brodeur.
- Maurice Sabelis, Yasuyuki Choh, Yvonne van Houten and Arne Janssen.
- Gerben Messelink et al.
- Javier Calvo et al.
- Amir Grosman et al.