DISCOVERY OF A HIGHLY ACTIVE MOLLUSCICIDAL EXTRACT AGAINST LAND SNAILS, FROM Nerium Oleander L. | ||
| Journal of Plant Protection and Pathology | ||
| Article 4, Volume 32, Issue 10, October 2007, Pages 8691-8694 PDF (424.9 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/jppp.2007.220705 | ||
| Author | ||
| H. I . Hussein, | ||
| Plant Protection Research Station, Sabbahia, Baccous, Alexandria, Egypt | ||
| Abstract | ||
| Nerium oleander L. is the widest spread ornamental plant; it is cultivated every where in Egypt as well as in the whole world. We noticed that snails living very close to the plant do not approach it. A chloroformic cardenolide extract was isolated from the leaves of the plant after removing the other constituents with lead acetate; the isolated extract was tested for its molluscicidal activity against the harmful land snails, Theba pisana (Muller) and Eobania vermiculata. The extract was highly active against T pisana with LD50 value of 12.039 µg / gm of body weight, while E vermiculata was less sensitive to the extract, with LD50 value of more than 100 µg / gm of body weight. The results indicate that N oleander is a good source of natural molluscicidal extracts, or compounds which are more toxic to T pisana snails than the present used synthetic pesticides, methomyl and methiocarb. | ||
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