Effects of metaldehyde and methiocarb on feeding preferences and survival of a slug predator (Pterostichus melanarius (F.): Carabidae, Pterostichini)

摘要: : The potential for reducing slug populations in crops through predation by generalist carabid beetles is well documented. However, few studies have considered interactions between biological and chemical control agents of slugs. Laboratory assays supported previous findings that the consumption metaldehyde slugs (Deroceras reticulatum) leads to increased duration feeding bouts (such as Pterostichini) on sub-lethally affected individuals. a similar effect was not found Pterostichus melanarius exposed fed other widely applied pelleted molluscicide formulation (methiocarb). Examination beetle survival after containing molluscicides demonstrated strong biocidal properties methiocarb, whereas (ingested predation) did differ from killed freezing. Beetle avoidance more toxic compound interaction mucus production attack rates are discussed.