Chemical composition of Cupressus lusitanica and Eucalyptus saligna leaf essential oils and bioactivity against major insect pests of stored food grains

Plant‐Derived Substances Used Against Beetles–Pests of Stored Crops and Food–and Their Mode of Action: A Review

“…As the data of studies conducted by Ajayi, Appel, and Fadamiro () show, components of essential oils, such as 1‐8‐cineole, carvacrol, and eugenol, also possess a high fumigant toxic activity against the cowpea weevil C. maculatus , causing ≥90% mortality of adult beetles at low doses of 5 μL/L of air within 24 hr. Similar results were obtained by (Bett et al., ), who tested leaf essential oils from C. lusitanica and E. saligna against A . obtectus .…”

“…Likewise, Bett et al. () tested the activity of leaf essential oils from Cupressus lusitanica and Eucalyptus saligna against adult T. castaneum , Acanthoscelides obtectus , and Sitophilus zeamais (Curculionidae). A contact toxicity bioassay showed that the obtained leaf essential oils were moderate or strong toxicants to adult insects from all tested genera but depended on the duration of exposure and concentration and route of application.…”

“…Malfunctions of reproductive and endocrine system were observed in rats exposed to curcumin, quercetin combined with deltamethrin and cypermethrin (in doses 100 mg/kg body weight), as well as cypermethrin itself (1, 2, and 25 mg/kg body weight), impaired reproductive organs and affected fertility in rats (Sharma, Aslam Khan, & Singh, ; Singh, Bhagat, Raijiwala, Dighe, & Vanage, ). Thus essential oils with significant repellent activity against crop pests are interesting alternatives (Bett et al., ).…”

Synthesis of natural nanopesticides with the origin of Eucalyptus globulus extract for pest control

“…Obtained results suggest that toxicity properties of E. globulus oil can be proposed as alternatives to chemical pesticides for controlling R. dominica and L. serricorne (58). The summary of the literature about the natural insecticides with major compounds, including 1,8-cineole in Table 6 was presented (59)(60)(61)(62)(63). In the present study, the mortality of Myzus persicae was increased as the exposure time and the dose of the nanoencapsulated Eucalyptus globulus extract increased.…”

Toxicidade de Rosmarinus officinalis, Myrocarpus frondosus, Citrus limonum e Mentha piperita sobre pragas de grãos armazendos

“…Uma alternativa promissora no controle pragas de grãos armazenados, Sitophilus zeamais (Motschulsky, 1855) (Coleoptera: Curculionidae), e Acanthoscelides obtectus (Say) (Coleoptera: Chrysomelidae) são os óleos essenciais extraído de plantas aromáticas (Bett et al, 2016).…”