Contact application of lamiaceae botanicals reduces bean weevil infestation in stored beans
2019
Authors:
Jevremović, StojanLazarević, Jelica
Kostić, Miroslav
Krnjajić, Slobodan
Ugrenović, Vladan
Radonjić, Anda
Kostić, Igor
Document Type:
Article (Published version)
Metadata
Show full item recordAbstract:
The bean weevil (Acanthoscelides obtectus, Say) is a serious pest of stored bean seeds. Bean weevil control relies heavily on the use of synthetic insecticides. In the search for a sustainable alternative, the residual contact toxicity and anti-oviposition activity of thyme (Thymus vulgaris L.), rosemary (Rosmarinus officinalis L.) and basil (Ocimum basilicum L.) essential oils as well as their dominant components (thymol, α-pinene, 1,8-cineole and linalool) were tested against A. obtectus adults. Out of the seven tested botanicals, T. vulgaris oil, thymol and linalool exhibited the highest toxic potential (>90% mortality). Females were less susceptible than males. The insecticidal activity of these botanicals was much greater when they were applied on glass compared to direct application to the bean. All tested botanicals reduced oviposition by bean weevil females. T. vulgaris oil, thymol and α-pinene also deterred bean weevil oviposition, as revealed by a two-choice test. Our research shows that T. vulgaris oil and thymol are promising and sustainable alternatives to synthetic pesticides for protecting stored beans against the bean weevil.
Keywords:
Oviposition deterrence; Oviposition inhibition; Residual toxicity; TerpenesSource:
Archives of Biological Sciences, 2019, 71, 4, 665-676Funding / projects:
- Modulation of antioxidative metabolism in plants for improvement of plant abiotic stress tolerance and identification of new biomarkers for application in remediation and monitoring of degraded biotopes (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-43010)
DOI: 10.2298/ABS190617049J
ISSN: 0354-4664
WoS: 000505766800010
Scopus: 2-s2.0-85078341411
URI
http://www.serbiosoc.org.rs/arch/index.php/abs/article/view/4391https://radar.ibiss.bg.ac.rs/handle/123456789/3657