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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 89, No. 2, 1994, pp. 247-250
Bioline Code: oc94051
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 89, No. 2, 1994, pp. 247-250

 en Thevetia peruviana (Family: Apocynaceae) in the Control of Slug and Snails Pests
A Panigrahi & Sk Raut

Abstract

An aqueous extract prepared from Kernels of the fruit of
Thevetia peruviana (Pers.) Schumann (Family : Apocynaceae)
was found under experimental conditions, to be toxic to the slug
Laevicaulis alte (Ferussac) and the snail Achatina fulica
Bowdich, the important agrihorticultural pests of Indo-Pacific
countries. Concentrations as low as 1% (w/v) killed all the slugs
exposed in less than 981.00 (+/- SD 22.76) min, and 2% of the
extract killed 100% of the slugs L. alte and 50%,  50% and
30% of the snail A. fulica in between 92.34 (+/- SD 6.63) -
321.33  (+/- SD 4.14) and 271.20 (+/- SD 17.54) - 298.26 (+/- SD
16.69) min respectively. The most effective concentration of the
extract was 20%; it killed 100% of exposed slugs and snails within a
short time (40-50 and 90-1440 min respectively) when the extract was
exposed on the soil in experimental trays or when it was applied to
potato slices offered as food to the gastropods.

Keywords
Thevetia peruviana - fruit kernel extract - pest control - slugs - snails

 
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