The Efficiency of Some Plant Extracts in Controlling the Larvae of the Cadelle Beetle, Tenebriodes mauritanicus in the Laboratory
N. Al-Saoud
Plant Protection Department, Faculty of Agriculture, Baath University, Homs, Syria. Email address of corresponding author: nisreensoud@gmail.com
Received: 31/10/2022; Accepted: 19/7/2023
https://doi.org/10.22268/AJPP-001236
Abstract
The efficacy of four acetone extracts of Melia azedarach, Zingiber pupureum, Thymus capitata and Mentha viridis, was tested as pesticides of plant origins in controlling the 4th instar larvae of Tenebroides mauritanicus (L.) (Coleoptera: Tenebrionidae) under laboratory conditions. The extracts were applied at three concentrations 100, 50 and 25%. The results showed that the extract of ginger root had the highest mortality rate (90%), followed by M. azedarach fruits extract (83.33%), when 100% concentration was used. Meanwhile, thyme and mint leaves extracts caused 3.33% and 30% mortality, respectively, when the same concentration was used. The LC50 values for the ginger and the azedarach extracts were calculated on the first day after treatment and were 41.9 and 79.99% for both extracts, respectively. The results obtained indicated that the evaluated plant extracts were effective in controlling the cadelle beetle, which makes it a potential future component for use in integrated pest management programs.
Keywords
Cadelle beetle, LC50, Tenebroides mauritanicus, plant extracts.