The laboratory estimation of essential oils as biological methods against black cherry aphids M. cerasi
Laen...
Kuupäev
2023
Kättesaadav alates
Autorid
Eisa, M.A.S.
Matsera, O.
Cagáň, Ľ.
Ajakirja pealkiri
Ajakirja ISSN
Köite pealkiri
Kirjastaja
Estonian University of Life Sciences
Abstrakt
Plants' essential oils play a considerable role in the plant integrated protection systems
against harmful insects. Therefore the aim of our study was to find the potential repellency and
toxicity effects of essential oils (EOs) from Allium sativum L., Ocimum basilicum L., Lavandula
angustifolia Mill, Eucalyptus globulus, Labill and Curcuma longa L., and two chemical
substances DEET (N, N-diethyl-3-methylbenzamide) and 2-Undecanone on the black cherry
aphids Myzus cerasi. Repellent peculiarities were evaluated at five different concentrations:
0.3%, 0.6%, 0.9%, 1.2% and 1.5%, with 4 replications at the interim of 15 and 30 minutes for an
olfactometer test and mortality was evaluated after 2, 6 and 24 hours for insecticidal activity test.
The repellent index was most influenced by the concentration of essential oil; the percentage of
influence was 64%. At the same time, the highest repellency index 95% was achieved at a
concentration of 1.5% when using essential oils of A. sativum and E. globulus, as well as when
using 2-Undecanone within 30 minutes of waiting. A contact toxicity (mortality) test in Petri
dishes showed efficacy for all tested oils and chemicals after a 6-hour treatment period. The
lowest concentration that ensured 100% insect mortality was 0.9% when using E. globulus
essential oil. The lowest lethal concentration (LC50) value of 0.00240 mL/10 mL was obtained
with O. basilicum oil and the lowest LC98 value of 0.28209 mL/10 mL was obtained with
E. globulus oil after a 6-hour treatment period.
Kirjeldus
Received: March 19th, 2023 ; Accepted: September 21st, 2023 ; Published: October 20th, 2023 ; Correspondence: matsera.olga.vnau@gmail.com
Märksõnad
plant protection, plants' essential oils, Myzus cerasi, olfactometer, repellent peculiarities, toxicity, articles