Insecticidal and Acaricidal Activity of Essential Oils Rich in (E)-Nerolidol from Melaleuca leucadendra Occurring in the State of Pernambuco (Brazil) and Effects on Two Important Agricultural Pests

Abstract

Essential oils from the leaves, stems, flowers and fruits of Melaleuca leucadendra growing in the state of Pernambuco, Brazil, were analyzed using gas chromatography-mass spectrometry (GC-MS). The effects of the oils and their major constituent were evaluated on the agricultural pests Tetranychus urticae and Plutella xylostella in different stages of development. The analysis revealed a M. leucadendra chemotype rich in (E)-nerolidol (81.78 ± 0.90 to 95.78 ± 1.20%). P. xylostella was more susceptible to the oils and major constituent than T. urticae. The fruit oil was 1.5-fold more toxic than the leaf oil to T. urticae eggs. (E)-Nerolidol was 5.5-fold and 4.5-fold more toxic to T. urticae adults than the leaf and fruit oils, respectively. Azamax ® used as the positive control was more efficient than the oils and (E)-nerolidol against T. urticae. However, the oils and (E)-nerolidol were more toxic to P. xylostella than Azamax ® .

Mosquito Larvicidal Activity, Antimicrobial Activity, and Chemical Compositions of Essential Oils from Four Species of Myrtaceae from Central Vietnam

“…Chemotype IIa has also been represented by samples from Minas Gerais, Brazil [35], and from Lahore, Pakistan [36]. There is a third chemotype, dominated by (E)-nerolidol (> 90%), which has been described from Uttarakhand, India [37] and from Pernambuco, Brazil [38]. Chemotype I has also been found in Cuba [39] and Rio de Janeiro, Brazil [40].…”

“…They were both dominated by 1,8-cineole (43.0% and 48.7%, respectively), but these two samples were also rich in viridiflorol (24.2% and 27.8%, respectively), and therefore, may represent a subtype of chemotype I. An agglomerative hierarchical cluster analysis was carried out using the M. leucadendra leaf essential oil compositions reported in the literature [14,[36][37][38][39][40][41][42][43][44][45][46][47][48][49][50] (Figure 3). The cluster analysis reveals two sub-types of chemotype I, the two sub-types of chemotype II, as described by Brophy [14], and chemotype III, the nerolidol chemotype.…”

“…A total of 61 compounds were identified in the leaf oil of S. nervosum, accounting for 90.9% of the composition, with 31.7% monoterpene hydrocarbons, 24.3% sesquiterpene hydrocarbons, and 27.9% oxygenated sesquiterpenoids predominating. The leaf essential oil of S. nervosum was rich in (Z)-β-ocimene Australia-IIa [41] Brazil [35] Australia-IIa [14] Pakistan [36] Australia-IIb [14] Australia-IIb [41] Brazil [38] India [45] Egypt [44] Java A1 [47] Java A2 [47] Java A3 [47] Cuba [39] Côte-d'Ivoire [49] Brazil [40] Cuba [46] Benin [48] Venezuela [43] China [42] Vietnam (OL, this work)…”

Phytol, (E)-nerolidol and spathulenol from Stevia rebaudiana leaf essential oil as effective and eco-friendly botanical insecticides against Metopolophium dirhodum

“…Further studies focused on the efficacy of (E)nerolidol against other economically important arthropod pests. da Silva et al (2020) assessed the toxicity of (E)-nerolidol against Plutella xylostella (L.) larvae and Tetranychus urticae C. L. Koch adults, estimating LC 50 values of 0.18 and 0.3 mL L −1 , respectively. The authors also detected a significant ovicidal effect of (E)-nerolidol, which constitutes > 94 % of the Melaleuca leucadendra (L.) L. leaf EO.…”

Toxic Effects of Commercial and Botanical Pesticides on the Behavioral Parameters of Zebrafish (Danio Rerio)

“…As an alternative to commercial pesticides, essential oils (EOs) are used, aiming to reduce toxicity to the environment (14). EOs are secondary metabolites of plants, with volatile and aromatic characteristics, obtained from non-woody parts, which contain monoterpenes, diterpenes, sesquiterpenes, and terpenoids in their composition (15), serving as a defense for plants against fungi, arthropods, and herbivores (16).…”