Testing the efficacy of different substances against Arion slugs (Arionidae) under laboratory conditions

Žiga LAZNIK; Maja MIHIČINAC; Jaka RUPNIK; Matej VIDRIH; Igor PRŠA; Stanislav TRDAN

doi:10.14720/aas.2010.95.2.14776

Authors

Žiga LAZNIK University of Ljubljana, Biotechnical Faculty, Dept. of Agronomy, Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
Maja MIHIČINAC University of Ljubljana, Biotechnical Faculty, Dept. of Agronomy, Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
Jaka RUPNIK University of Ljubljana, Biotechnical Faculty, Dept. of Agronomy, Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
Matej VIDRIH University of Ljubljana, Biotechnical Faculty, Dept. of Agronomy, Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia
Igor PRŠA Unichem d.o.o., Sinja gorica 2, SI-1360 Vrhnika, Slovenia
Stanislav TRDAN University of Ljubljana, Biotechnical Faculty, Dept. of Agronomy, Jamnikarjeva 101, SI-1111 Ljubljana, Slovenia

DOI:

https://doi.org/10.14720/aas.2010.95.2.14776

Keywords:

laboratory experiment, Bacillus thuringiensis var. kurstaki, caffeine, sodium dodecyl sulphate, pirimicarb, slugs, Arion spp., molluscicides, efficacy

Abstract

In 2008 and 2009 we studied molluscicidal activity of 26 substances in 89 different treatments under laboratory conditions. The experiments in which slugs (Arion spp.) were a part took place in two series: 1) with the injection of active substances in slug intestines; and 2) with the application of pellets. After giving the injection we observed 100% mortality of slugs in treatments with Bacillus thuringiensis var. kurstaki (0.25 ml in 10% concentration/individual), caffeine (0.25 ml in 10% concentration/individual), sodium dodecyl sulphate (0.25 ml in 10% concentration/individual, 0.125 ml in 10% concentration/individual, 0.125 ml in 5% concentration/individual, 0.0625 ml in 10% concentration/individual), and pirimicarb (0.25 ml in 10% concentration/individual, 0.125 ml in 10% concentration/individual, 0.125 ml in 5% concentration/individual, 0.0625 ml in 10% concentration/individual). Meanwhile, the application of pellets resulted in the highest (100%) slug mortality when sodium dodecyl sulphate in 0.5% concentration with caraway as a supplement was used.