Assessment of toxicity on the basis of total phenolic content in oleander leaves (Nerium oleander L.) against Myzus persicae (Sulzer, 1776) (Hemiptera: Aphididae)
Nerium oleander is an evergreen flowering shrub or small tree distributed widely in the Mediterranean region. It is also a source of polyphenols and cardenolides ?? with insecticidal effect which could be a safe alternative of chemical control of insect pests. In the present work, five concentration...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
University of Ljubljana Press (Založba Univerze v Ljubljani)
2018-10-01
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| Series: | Acta Agriculturae Slovenica |
| Subjects: | |
| Online Access: | https://journals.uni-lj.si/aas/article/view/12810 |
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| Summary: | Nerium oleander is an evergreen flowering shrub or small tree distributed widely in the Mediterranean region. It is also a source of polyphenols and cardenolides ?? with insecticidal effect which could be a safe alternative of chemical control of insect pests. In the present work, five concentrations (0 %, 1 %, 2.5 %, 5 %, and 10 %) of ethanolic extract from Nerium oleander leaves were evaluated for its insecticidal effect against 3 to 4 days old Myzus persicae individuals under laboratory conditions. Obtained results showed a significant insecticidal effect with 70 % of mortality at the highest concentration (10 %). Total phenolic content of leaf ethanolic extract of this plant was 1721.36 mg gallic acid equivalent 100 g-1 dry matter. The results obtained suggest that we could make bioinsecticides based on leaves ethanolic extracts from N. oleander which rich in polyphenols for use eventually in integrated pest management. |
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| ISSN: | 1854-1941 |