Author/Authors :
YORULMAZ SALMAN, Sibel Süleyman Demirel Üniversitesi - Ziraat Fakültesi - Bitki Koruma Bölümü, Turkey , KARA, Nimet Süleyman Demirel Üniversitesi - Ziraat Fakültesi - Tarla Bitkileri Bölümü, Turkey , ÖZ, Oktay Süleyman Demirel Üniversitesi - Ziraat Fakültesi - Bitki Koruma Bölümü, Turkey
Title Of Article :
The Contact Toxicities of Extracts with Hexane, Ethanol and, Methanol of Some Plants on Various Developmental Stages of Leptinotarsa decemlineata SAY (Coleoptera: Chrysomelidae)
Abstract :
In this study, the contact toxicities of the extracts with hexane, ethanol and methanol of Ocimum basilicum L., Thymus vulgaris L., Mentha spicata L., Melissa officinalis L. and Matricaria chamomilla L.plants on various developmental stages of Leptinotarsa decemlineata. Whole of the plant extracts in all of three solvents were found more effective in third and forth larvae period of Leptinotarsa decemlineata than adult period. Furthermore, the contact toxicity of the extracts of the plants used in the study with ethanol and methanol were found higher compared to the extracts with hexane in potato beetle. In the study, the highest influence was obtained from the extracts of Thymus vulgaris L. plant with methanol. This extract demonstrated 96.45%-influence on the third-period larvae of potato beetle, 85.70%-influence on fourth-period larvae of potato beetle and 53.50%-influence on adult period. The lowest influence in the study was identified as 32.18% in third-period larvae of potato beetle, 24.10% in fourth-period larvae of potato beetle and 10.70% in adult period in chamomile extract with hexane.
NaturalLanguageKeyword :
Leptinotarsa decemlineata , Potato betle , Plant extract , Solvents , Contact toxicity
JournalTitle :
Journal Of Natural and Applied Sciences
