Insecticide effect of pennyroyal and rosemary essential oils on the rice weevil

Ukrainian Journal of Ecology

Benchaben Hellal¹  M’Hamed Maatoug²  Mira Sehari²  Nadia Hanane Sehari² 

[1] Geomatics and Sustainable Development Laboratory. Ibn Khaldoun University of Tiaret.;Laboratory of Agro Biotechnology and Nutrition in Semi-arid Zones, Department of BiologyFaculty of Nature and Life Sciences, Ibn Khaldoun University of Tiaret.

关键词: essential oils;    insecticides activities;    Mentha pulegium;    Romarinus officinalis;    Sitophylus oryzae;   

DOI  :  10.15421/2018_268

学科分类：生物科学（综合）

来源: Alex Matsyura Publishing

【 摘 要 】

The study aims at evaluating the potential insecticide essential oils from two plants of the familyLamiaceaepushing the spontaneous state in the Tiaret region (western Algeria). Insecticides tests were performed in the laboratory by the direct contact method. The results of these tests have shown that rosemary essential oil has remarkable insecticidal properties. They induced 100% mortality of adult rice weevils to 15μl dose after only 24 hours of exposition. The essential oil of pennyroyal induced 70 % mortality at the same dose and for the same exposure time. Lethal doses (LD50) are determined in the order of 5,58 for rosemary and 7,36μl for pennyroyal. The LD90 Are in order of 9.36 μl it mean between the second and third dose tested for the rosemary and of 12.52µl for the pennyroyal and in the same two essential oils experimental conditions prevent the development of rice weevil larvaeSitophylus oryzaeto 5 µl dose.

【 授权许可】

CC BY