THE CHEMICAL AND BIOLOGICAL-CONTROL OF LYMNAEA-TRUNCATULA IN NATURAL WATERCRESS BEDS IN THE LIMOUSIN REGION (FRANCE)

Authors
RONDELAUD D VAREILLEMOREL C
Citation
D. Rondelaud et C. Vareillemorel, THE CHEMICAL AND BIOLOGICAL-CONTROL OF LYMNAEA-TRUNCATULA IN NATURAL WATERCRESS BEDS IN THE LIMOUSIN REGION (FRANCE), Parasite, 1(1), 1994, pp. 89-92
Citations number
12
Categorie Soggetti
Parasitiology
Journal title
Parasite → ACNP
ISSN journal
1252607X
Volume
1
Issue
1
Year of publication
1994
Pages
89 - 92
Database
ISI
SICI code
1252-607X(1994)1:1<89:TCABOL>2.0.ZU;2-L
Abstract
The snails present in 17 natural watercress beds have been treated dur ing 1 or 2 years by a control associating the use of a molluscicide (C uCl2) and the introduction of a predatory snail, Zonitoides nitidus. L ymnea truncatula was eliminated in only one year of treatment in 14 st ations, and in two years in the three others. Elimination of other aqu atic pulmonate snails was effected in two years for L. glabra, in 3 ye ars for L. palustris, and in only one year for Physa acuta. Z. nitidus has disappeared from 12 watercress beds during the 4th year after tre atment ; in the five others, the numbers of this predator increased du ring 1 of 2 years and then decreased before their disappearance.