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- Title
Molluscicidal activity of vulgarone B against ram's horn snail (Planorbella trivolvis).
- Authors
Meepagala, Kumudini M.; Sturtz, George; Mischke, Charles C.; Wise, David; Duke, Stephen O.
- Abstract
The ram's horn snail (Planorbella trivolvis (Say)) is an intermediate host for a digenetic trematode (Bolbophorus confusus (Krause) Dubois) that has recently been discovered to be a significant problem in commercial channel catfish (Ictalurus punctatus Raf) production ponds in the Mississippi Delta region in the USA. In these catfish ponds, the digenetic life cycle of this parasitic trematode involves two intermediate hosts, the ram's horn snail and the channel catfish, and the final host, the American white pelican (Pelecanus erythrorhynchos Gmelin). One approach to eradicate this problem is to disrupt the life cycle of the parasitic trematodes by eliminating the snails. During our search for natural-product-based molluscicides to control the snails in the catfish ponds, vulgarone B, isolated from the steam distillate of the aerial parts of the plant Artemisia douglasiana Besser (Asteraceae), was found to be active towards the snails with a LC50 of ca 24 µM. Channel catfish toxicity studies indicated a LC50 of ca 207 µM. Vulgarone B may be an environmentally acceptable alternative for snail control in aquaculture.
- Subjects
HUMAN life cycle; GASTROPODA; SNAILS; ASTERACEAE; WHITE pelican; MOLLUSCICIDES; AQUACULTURE; PESTICIDES
- Publication
Pest Management Science, 2004, Vol 60, Issue 5, p479
- ISSN
1526-498X
- Publication type
Article
- DOI
10.1002/ps.833