Lethal and sublethal effects of babassu and degummed soybean oils on the predatory mite<i>Typhlodromus ornatus</i>(Acari: Phytoseiidae)

Saraiva, Wenner V. A.; Vieira, Isadora Gomes; Galvão, Andréia Serra; Amaral, Ester Azevedo do; Rêgo, Adriano S.; Teodoro, Adenir Vieira; Dias-Pini, Nívia da Silva

doi:10.1080/01647954.2020.1734081

Cited by 5 publications

(8 citation statements)

References 31 publications

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“…Havasi et al 2019) and Biomite®(Havasi et al 2020) didn't have signi cant effect on the r m and λ of N. californicus. In contrast to our result, plant essential oils signi cantly reduced the values of r m and λ of other arthropods(Esmaeily et al 2017;Mamduh et al 2017;Saraiva et al 2020). Differences in species, populations, experimental method, formulations and concentrations could be responsible for different results between studies.…”

contrasting

confidence: 95%

“…Population parameters of the target and non-target species (either harmful or bene cial) may be in uenced by the lethal or sublethal concentrations of pesticides (Roush 1989 The use of biological control agents in combination with selective natural insecticides, such as essential plant oils that are environmentally sustainable, can be applied as alternatives to conventional insecticides to control pests. These can not only decrease the side effects of synthetic pesticides but also improve the e ciency of natural enemies in prey searching as shown by low toxicity, non-repellence and in particular cases attractiveness to oils (Oliveira et al 2017; Freitas et al 2018; Saraiva et al 2020). However, caution is needed, because models predict pest resurgence when effective natural enemies are present, even when they are less sensitive to pesticides than the pest (Janssen and van Rijn 2021).…”

Section: Introductionmentioning

confidence: 99%

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Sublethal Effects of Essential Plant Oils on Biochemical and Ecological Parameters of the Predatory Mite Amblyseius Swirskii

Ghasemzadeh¹,

Messelink²,

Avila³

et al. 2021

Preprint

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The predatory mite Amblyseius swirskii is widely used natural enemy of phytophagous pests. Due to negative effects of conventional pesticides on non-target organism, the development of selective natural and eco-friendly pesticides such as essential plant oils are a useful pest control tool to use in synergy with biological control agents. Essential oils of Nepeta crispa, Satureja hortensis and Anethum graveolens showed promising results to control Tetranychus urticae. Hence an experiment was carried out to evaluate the effects of these essential oils on biochemical and demographic parameters of A. swirskii. Significant reduction of carbohydrate, lipid and protein contents of oil-treated predatory mites was observed. However oils of S. hortensis and A. graveolens had no negative impact on lipid reserve. Glutathione-S-transferase activity of A. swirskii was influenced by A. graveolens. In addition, the enzyme activity of the α-esterases was elevated by all treatments. The essential oils showed no effect on β-esterases activity compared to the control treatment. None of the concentrations of the different tested oils affected the population growth parameters of A. swirskii. However, a significant reduction was observed in oviposition time and total fecundity of predatory mites. Our observations show that the tested essential plant oils need some caution when applied as alternatives to synthetic pesticides in combination with A. swirskii and may have critical implications for Integrated Pest Management (IPM) programs. However, semi-field and field studies are required to evaluate the effects of these products on T. urticae and A. swirskii for developing IPM strategies.

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contrasting

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Sublethal Effects of Essential Plant Oils on Biochemical and Ecological Parameters of the Predatory Mite Amblyseius Swirskii

Ghasemzadeh¹,

Messelink²,

Avila³

et al. 2021

Preprint

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“…Similar to our results, Biomite R (Havasi et al, 2020) did not have a significant effect on the r and λ of N. californicus. However, there are studies showed a significant reduction in these parameters have been reported in insects when exposed to plant essential oils (Esmaeily et al, 2017;Mamduh et al, 2017;Ebadollahi and Mahdavi, 2019;Saraiva et al, 2020). Differences between species, populations, experimental method, formulations and concentrations could be responsible for variable results between studies.…”

Section: Discussionmentioning

confidence: 99%

“…The use of biological control agents in combination with selective natural insecticides, such as essential plant oils that are environmentally sustainable, can be applied as alternatives to conventional insecticides to control pests. These can not only decrease the side effects of synthetic pesticides but also improve the efficiency of natural enemies in prey searching as shown by low toxicity, nonrepellence, and in particular cases, attractiveness to oils (Oliveira et al, 2017;Freitas et al, 2018;Saraiva et al, 2020). However, caution is needed, because models predict pest resurgence when effective natural enemies are present, even when they are less sensitive to pesticides than the pest (Janssen and van Rijn, 2021).…”

Section: Introductionmentioning

confidence: 99%

Sublethal impacts of essential plant oils on biochemical and ecological parameters of the predatory mite Amblyseius swirskii

et al. 2022

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“…To evaluate the sublethal effects of Envidor Speed on A. swiriskii, after treatment (modified leaf dip method; Helle and Overmeer, 1985) of bean leaf discs with sublethal concentrations (including LC 5 , LC 15, and LC 25 ), and distilled water (Lopez et al 2015;Saraiva et al 2020), allowed to dry for 2 h. Then 80 same-aged males and females (24 h-old) were transferred to the treated and untreated leaf discs of the bean. After 24 h, surviving females were separately moved onto the untreated leaf discs (4 cm in diameter).…”

Section: Life Table Assaymentioning

confidence: 99%

The effects of the abamectin and spirodiclofen mixture on life history and population parameters of Amblyseius swirskii

Mousavi

Kheradmand

Fathipour

et al. 2023

saa

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In this study, three sublethal concentrations (LC5, LC15, and LC25) of Envidor®speed (Abamectin and Spirodiclofen mixture, 24% SC, Bayer co.) on the biological parameters of the predatory mite Amblyseius swirskii Athias-Heneroit (Acari: Phytoseiidae) fed on Tetranychus urticae Koch (Acari: Tetranychidae) was assessed based on the Two-sex life table theory under laboratory conditions (25 ± 1°C, 70 ± 5% RH and 16:8 (L: D) hours). The data were analyzed based on a two-sex life table procedure. Increasing the sublethal concentration did have a significant effect on some life table parameters. The total lifespan of both males and females treated mites had a decreasing trend, for the females, it increased from 22.10 days in LC25 treatment to 42.67 days in control. The oviposition days of the predatory mite had the most differences between the LC15 and LC25 treatments compared to LC5 and control. Based on our results, the total fecundity is also affected by the acaricidal doses, which changed from 19.10 eggs per individual in LC25 to 37.17 eggs per individual in control. The net reproductive rate (R0), as well as the gross reproductive rate (GRR), were all significantly reduced with increasing the acaricide concentration. The control treatment had the maximum value, and the higher concentration treatment (LC25) had the slowest value of R0 and GRR. On the contrary, the intrinsic rate of increase (r) and finite rate of increase (λ) showed no significant differences with the increasing concentration of acaricide from the control to LC25 treatments. Eventually, with due attention to the large range value of each LCs for predatory mites concerning recommended concentration for T. urticae based on the active ingredient, the recommended concentration of Envidorspeed in IPM programs is unobstructed.

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Lethal and sublethal effects of babassu and degummed soybean oils on the predatory miteTyphlodromus ornatus(Acari: Phytoseiidae)

Cited by 5 publications

References 31 publications

Sublethal Effects of Essential Plant Oils on Biochemical and Ecological Parameters of the Predatory Mite Amblyseius Swirskii

Sublethal Effects of Essential Plant Oils on Biochemical and Ecological Parameters of the Predatory Mite Amblyseius Swirskii

Sublethal impacts of essential plant oils on biochemical and ecological parameters of the predatory mite Amblyseius swirskii

The effects of the abamectin and spirodiclofen mixture on life history and population parameters of Amblyseius swirskii

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