Fumigant and toxic activity of some aromatic oils for protecting dry dates from Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) in stores

Abstract

Background: Essential oils, especially Ocimum basilicum and Eucalyptus globulus oils were among the most important oils that contain active ingredients which have fumigant repellent activity against insects in stores. The Surinam beetle, Oryzaephilus surinamensis, was the store insects that attack dry dates in the store. The use of these oils in the control of this insect is safer for human and animal health. Results: Essential oils of O. basilicum and E. globulus were tested for their volatile toxicity in the laboratory against sawtoothed beetle, O. surinamensis. The concentrations of 4.0, 8.0, 16.0, and 32.0 μl/l air were used in the volatile toxicity experimental. The results indicated that O. basilicum was highly toxic than E. globulus. The results indicated that increased concentration of different oils and exposure time leads to increase in the percentage of mortalities. Also, in storage experimental, the toxic activity for the tested oils was investigated. Ocimum basilicum protects dry dates in storage for 3 months from Surinam beetle infestation. Conclusion: The storage experiment clearly confirmed that O. basilicum and E. globulus could be used in the protection of dry dates from infestation with O. surinamensis.

Modeling of the toxicity of Eucalyptus globulus Labill essential oil against red flour beetle, Tribolium castaneum Herbst

“…The fumigant toxicity of E. globulus essential oil was approved against some stored-product insect pests such as the cigarette beetle [Lasioderma serricorne F. (Coleoptera: Anobiidae)], the lesser grain borer [Rhyzopertha dominica F. (Coleoptera: Bostrichidae)], the maize weevil [Sitophilus zeamais Mots (Coleoptera: Curculionidae)], and the saw-toothed beetle [Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae)] (Ebadollahi et al, 2010;Abd El-Salam et al, 2019;Araújo et al, 2019). Although results of these studies are in parallel with our findings about the insecticidal efficiency of E. globulus essential oils, the optimization and modeling of its insecticidal effects were reported for the first time in the present study.…”

Essential Oils from Artemisia herba alba Asso., Maticaria Recutita L., and Dittrichia Viscosa L. (Asteraceae): A Promising Source of Eco-Friendly Agents to Control Callosobruchus maculatus Fab. Warehouse Pest

“…Due to their high volatility, EOs and their constituents, particularly monoterpenes, exert insecticidal effects, and reduce or disturb the insect growth at different stages of their C50 and LC90 were the concentration of causing 50% and 90% mortality against larvae after 24 h; slope: measures of inclination of the line probit (p) � constant + Bx (covariates x transformed using log base 10; SE � standard error; 95% CI: 95% confidence interval; χ 2 � chi-square. life [45,[50][51][52][53]. It was reported that EOs' efficiencies are closely related to the phytochemical profile and the entomological target [54].…”

Estragole: A review of its pharmacology, effect on animal health and performance, toxicology, and market regulatory issues

“…Estragole's toxic impact and negative geotaxis assays on adult D. melanogaster flies have also been reported to alter mortality, with the flies experiencing damage to their locomotor system and being unable to move in the vertical plane (80,81). Furthermore, the concentration of Estragole in the essential oil of the variety O. basilicum varied from 52 to 100 percent and was poisonous to Rhyzopertha Dominica, Sitophilus oryzae, and Cephalotes pusillus, indicating that Estragole might limit growth (82,83).…”