Effect of the essential oil from the latex of the fruit Mangifera indica L. on Tetranychus urticae Koch (Acari, Tetranychidae)

Abstract

Tetranychus urticae Koch is a cosmopolitan pest that causes damage to crops in protected farming activities in the semiarid region of the state of Pernambuco, Brazil. We investigated the lethal and sublethal effects of the essential oil from the latex of the mango fruit [Mangifera indica, Espada and Rosa (MESPA and MROSA) varieties] and selected monoterpenes on T. urticae. The yield of the MROSA oil was higher (9.22 ± 0.15%). The GC/MS analysis of the oils enabled the identification of 26 constituents. Terpinolene (70.14 ± 0.61%) was the major compound identified in the MESPA oil; β-pinene (38.22 ± 0.80%) was the major constituent of the MROSA oil, followed by terpinolene (29.44 ± 0.29%). The mite was more susceptible to the oils and constituents through fumigation, with no difference between the two varieties. By residual contact, the MROSA oil was 2.7-fold more toxic than the MESPA oil. Terpinolene was the most toxic constituent by fumigation, whereas β-pinene and α-pinene were the most active by residual contact. The selected compounds from M. indica also affected the behavior of the mite, exerting an influence on fecundity, feeding preference and egg-laying preference. The positive control (Azamax®) was more efficient at reducing the fecundity of the mite than the oils, but the MROSA oil was more toxic by fumigation and residual contact. The effects of fumigation and residual contact combined with the change in behavior may be a considerable advantage in the integrated management of T. urticae. For the practical use of these oils as novel acaricides, however, further investigations are needed to evaluate the effects on non-target organisms and the cost-benefit ratio for the formulation of a product to be used on protected crops in the semiarid region of the state of Pernambuco, Brazil.

Preservation of poultry meat using Tetraclinis articulata essential oil during refrigerated storage

“…However, the multiplication of yeasts and molds in the EO-free sample has been considerably evolved to respectively reach 2.39 log CFU/g 9 days of storage at 4 °C. These results confirmed the potential inhibitory effect of the active major volatile compounds as δ-Elemene, α-pinene and camphor in the studied EO towards this flora which closely depends on the quantity added (Cabarkapa et al, 2013; Carvalho et al, 2019).…”

“…These findings proved the bacteriostatic activity of T. articulata towards TC and FC. In this context, the results of Shaltout et al (2017) showed that thyme ( Thymus vulgaris ) and cinnamon ( Cinnamomum zeylanicum ) EOs decreased effectively TC count at the 3 rd and 6 th day of storage period in minced meat when compared to the control. In addition, higher concentration of thyme EO decreased significantly enterobacteraceae count at refrigerated temperature.…”

Effects of water-based extracts of peppermint ( Mentha piperita L.) and French marigold (T agetes patula L.) on the transformation of larvae and nymphs of two-spotted spider mite ( Tetranychus urticae Koch)

“…The two-spotted spider mite (TSSM) -Tetranychus urticae Koch (Acari: Tetranychidae), is a widespread mite (De Carvalho Ribeiro et al 2019) found in all climate zones. The database of its host plants includes about 1,275 species representing 70 genera and dozens of botanical families (Migeon and Dorkeld 2021).…”

Acaricidal and Antioxidant Activities of Anise Oil (Pimpinella anisum) and the Oil’s Effect on Protease and Acetylcholinesterase in the Two-Spotted Spider Mite (Tetranychus urticae Koch)

“…The two-spotted spider mite, Tetranychus urticae Koch (Acari family Tetranychidae), is a harmful pest that damages many crops, including vegetables, fruits, and ornamental plants [1]. It is also the most common plant-eater of the family Tetranychidae [2], attacking 3877 host crops of both greenhouse and field crops [1]. The two-spotted spider mite is polyphagous; it can feed on hundreds of plants, including many that are important for the economic well-being of countries.…”