“Plants are usually charged negatively and emit weak electric fields. On their side, bees acquire a positive charge as they fly through the air. No spark is produced as a charged bee approaches a charged flower, but a small electric force builds up that can potentially convey information. The flower's potential changes and remains so for several minutes". (Link: http://www.sciencedaily.com/releases/2013/02/130221143900.htm) My question is: does this account for all plants/trees? And what about other insects than bees? Are there more examples of this electrical attraction between (sea) plants and pollinators?