Insecticidal activity of isolated essential oils from three medicinal plants on the biological control agent, Habrobracon hebetor Say (Hymenoptera: Braconidae)

Abstract

The effects of Allium sativum L. (Alliaceae), Piper nigrum L. (Piperaceae) and Glycyrrhiza glabra L. (Fabaceae) essential oils were investigated on the biological control agent, Habrobracon hebetor Say. The female wasps of H. hebetor were treated by LC30 concentrations of the tested essential oils for 24 h and their demography was investigated. Results indicated that the adult longevity, survival, fecundity, fertility, hatch rate, offspring sex ratio and the other demographic parameters negatively were affected by these essential oils. At the same time, our findings indicated that G. glabra essential oil has the less severe effect on H. hebetor. Accordingly, G. glabra essential oil seems to be a compatible botanical compound with H. hebetor for applying in integrated pest management programs.

Chemical constituents of the essential oil isolated from seed of black pepper, Piper nigrum L., (Piperaceae)

“…After three hours, its essential oil was separated as pale green layer above the water. In order to remove the water for purifying the essential oil, Na2SO4 (Sodium Sulfate) compound was used (Asadi et al, 2019). Finally, the purified essential oil was stored in special microtubes (2 ml) covered with aluminum foil in the refrigerator (about 4 °C) until GC-MS analysis (Negahban et al, 2007;Samsam Shariat, 2007;Shiva Parsia and Valizadegan, 2015;Asadi et al, 2018;Babaee Ghaghelestany et al, 2020).…”

“…Essential oils, known as secondary metabolites, are mainly abundant in Myrtaceae, Lauraceae, Lamiaceae, and Asteraceae families. These compounds mainly have contact, fumigant, repellent, and antifeedant effects and are one of the main components in defense mechanisms of plants against the herbivores (Bakkali et al, 2008;Rafiee-Dastjerdi et al, 2013;Asadi et al, 2018Asadi et al, , 2019. About the isolation method, volatile and aromatic products that are isolated by disstillation process called as the essential oil (Asadi et al, 2019).…”

“…These compounds mainly have contact, fumigant, repellent, and antifeedant effects and are one of the main components in defense mechanisms of plants against the herbivores (Bakkali et al, 2008;Rafiee-Dastjerdi et al, 2013;Asadi et al, 2018Asadi et al, , 2019. About the isolation method, volatile and aromatic products that are isolated by disstillation process called as the essential oil (Asadi et al, 2019). The essential oils could be used in different aspects due to their important medicinal features.…”

Chemical content of the aerial parts essential oil from rosemary, Rosmarinus officinalis L. (Lamiaceae) samples collected from Kermanshah province in the west of Iran

“…After four hours, the essential oil was given as a green layer. To remove essential oil's water and its purifying, sodium sulfate (Na2SO4) was applied (Asadi et al, 2019). Finally, the purified essential oil was maintained inside the microtubes (2 ml) covered with aluminum tape in a refrigerator (4 °C) until chemical analysis (Negahban et al, 2007;Samsam Shariat, 2007;Parsia Aref, 2015;Asadi et al, 2018;Babaee Ghaghelestany et al, 2020).…”

“…Essential oils are common in families Myrtaceae, Lauraceae, Lamiaceae, and Asteraceae that rosemary also belongs to Lamiaceae. These compounds mainly have fumigant, repellent, and antifeedant effects and are one of the main components in the defense mechanisms of plants against the herbivores for centuries (Bakkali et al, 2008;Rafiee-Dastjerdi et al, 2013;Asadi et al, 2018Asadi et al, , 2019Asadi et al, , 2022. This research aimed to identify essential oil constituents in the aerial parts of R. officinalis as a basic research for its application in the future.…”