Metal chelate molluscicides: the redistribution of iron diazaalkanolates from the gut lumen of the slug, Deroceras reticulatum (Muller) (Pulmonata: Limacidae)

A - Papers appearing in refereed journals

Clark, S. J., Coward, N. P., Dawson, G. W., Henderson, I. F. and Martin, A. P. 1995. Metal chelate molluscicides: the redistribution of iron diazaalkanolates from the gut lumen of the slug, Deroceras reticulatum (Muller) (Pulmonata: Limacidae). Pesticide Science. 44 (4), pp. 381-388.

AuthorsClark, S. J., Coward, N. P., Dawson, G. W., Henderson, I. F. and Martin, A. P.
Abstract

Two related iron chelates, one toxic to slugs by ingestion, the other not, were introduced into the foregut of D, reticulatum. The subsequent movement and redistribution of the metal within the slug tissues was studied by labelling the chelates with the radioactive isotope Fe-55. In slugs which survived treatment approximately half of the Fe-55 was voided in faeces. The iron retained became unevenly distributed, the highest concentration occurring in the digestive gland, irrespective of the chelate used. At high doses, slugs treated with tris(1-oxo-1,2-diazabutan-2-oxido)Fe(III) were fatally poisoned while those treated with the homologue, tris(1-oxo-1,2-diazaoctan-2-oxido)Fe(III were not. Slugs killed by the toxic chelate consistently contained proportionally less iron in the digestive gland and proportionally more in the body wall and reproductive system. Dosing slugs already killed by carbon dioxide asphyxiation gave a similar pattern, suggesting that the greater mobility of the iron from the toxic chelate was not a function of the slugs' metabolism.

KeywordsAgronomy; Entomology
Year of Publication1995
JournalPesticide Science
Journal citation44 (4), pp. 381-388
Digital Object Identifier (DOI)doi:10.1002/ps.2780440410
Open accessPublished as non-open access
Funder project or code101
106
226
206
236
ISSN0031613X
PublisherWiley

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