New Baits and Attractants for Slugs

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Abstract
The slug Deroceras reticulatum (Müller) was attracted to beer and fell into shallow vessels of the liquid and drowned. Moderately attractive baits were fresh unfermented grape juice and a fermenting sugar-yeast Drosophila bait. Commercial and laboratory-prepared metaldehyde baits on wheat bran or a plastic foam (Oasis®) were increased in effectiveness when moistened with beer but were no more effective than beer alone. Bay 37344 (4-(methylthio)-3,5-xylyl methylcarbamate) on bran and plastic foam plus beer also were highly effective. Baits containing metaldehyde on wheat bran or rice hulls were also increased in attractiveness to Vaginulus plebeius Fisher by adding beer. Observations indicate that slugs do not deliberately crawl into the liquid but tumble in from edges of the vessels.

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