J. Moll. Stud. (1989), 55, 533-536
© The Malacological Society of London 1989
research-article |
A NEW TECHNIQUE FOR ASSESSING THE CONTACT TOXICITY OF MOLLUSCICIDES TO SLUGS
Department of Agricultural and Environmental Science The University, Newcastle upon Tyne, NE1 7RU
A technique is described to accurately assess the dermal contact dose-mortality response of molluscicides. The technique involves carbon dioxide anaesthesia of laboratory reared Deroceras reticulatum (Müller) followed by application of test substances in solution to the dorsal surface. The LD50 of the substances tested were as follows: Sodium pentachlorophenate, 55.9 ng.mg1, Copper sulphate, 124.1 ng.mg1, Methiocarb, 314.6 ng.mg1 and Potassium permanganate, 418.9 ng.mg1 body weight.
(Received 18 August 1988; accepted 17 December 1988)