Biological responses of <i>Tetranychus urticae</i> (Acari: Tetranychidae) to sub-lethal concentrations of the entomopathogenic fungus <i>Beauveria bassiana</i>

Kheradmand, Katayoon; Heidari, Mahmood; Sedaratian-Jahromi, Amin; Talaei-Hassanloui, Reza; Havasi, Mohammadreza

doi:10.1017/s0007485321000523

Cited by 10 publications

(7 citation statements)

References 61 publications

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“…Moreover, the two isolates of B. bassiana and 17 isolates of M. anisopliae caused a mortality rate of 80% against Tetranychus evansi Baker & Pritchard (Wekesa et al 2005). Thus, the use of B. bassiana on bean plants led to a reduction in adult populations of T. urticae by significantly affecting the fecundity of females (Wu et al 2020) and adverse effects on certain other biological parameters of this mite (Kheradmand et al 2021).…”

Section: Discussionmentioning

confidence: 99%

Efficacy of the entomopathogenic fungus, Beauveria bassiana and Lecanicillium muscarium against two main pests, Bemisia tabaci (Genn.) and Tetranychus urticae (Koch), under geothermal greenhouses of Southern Tunisia

Chouikhi

Assadi

Grissa-Lebdi

et al. 2022

Egypt J Biol Pest Control

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Background The geothermal greenhouses in Southern Tunisia are an important axis of agricultural development. This sector faces many abiotic and biotic constraints that could threat its sustainability. Thus, the heated greenhouses encounter destructive pests such as the whitefly Bemisia tabaci (Gennadius) (Hemiptera: Aleyrodidae) and the two-spotted spider mite Tetranychus urticae (Koch) (Acari: Tetranychidae). Results This study aimed to assess the effect of the entomopathogenic fungi (EPF) Beauveria bassiana (strain ATCC and strain R444) and Lecanicillium muscarium strain Ve6 on simultaneous existence of T. urticae and B. tabaci in the host plants. The EPF had a significant effect on eggs and larvae of B. tabaci and on eggs and mobile forms of T. urticae in particular. The use of B. bassiana ATCC, B. bassiana R444 and L. muscarium strains Ve6 showed significant efficacies against B. tabaci larvae and eggs compared to untreated control. Indeed, the reduction percent of B. tabaci eggs varied between 42.65 and 58.52%. Thus, the efficacy against the number of B. tabaci larvae was in order to 65.04, 60.26 and 55.52% of B. bassiana strain ATCC, B. bassiana strain R444 and L. muscarium strain Ve6, respectively. In addition, these EPF were very effective on T. urticae eggs with a percentage reduction greater than 92.86%, whereas the percentage reduction in the T. urticae mobile forms varied between 95.11 and 98.52%. Conclusions Use of EPF will be an imperative to develop directed interventions at the integrated management of these two pests in protected and geothermal crops.

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Section: Discussionmentioning

confidence: 99%

Efficacy of the entomopathogenic fungus, Beauveria bassiana and Lecanicillium muscarium against two main pests, Bemisia tabaci (Genn.) and Tetranychus urticae (Koch), under geothermal greenhouses of Southern Tunisia

Chouikhi

Assadi

Grissa-Lebdi

et al. 2022

Egypt J Biol Pest Control

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“…In solid media, which may have an effective effect in causing a fatality rate in treated pests. [19] found that the use of the biological fungus B. bassiana decreased the lifespan of males and females for the two-spotted red mite significantly and directly with an increase in the sporangium of the fungus, as well as the fertility of eggs treated with the biological fungus decreased and concluded that this fungus could be introduced In combination with other agents within the integrated management program for the red two-spotted mite. Table 5.…”

Section: The Effect Of the Interaction Of The Studied Factors On The ...mentioning

confidence: 99%

The Effect of Using some Integrated Pest Management Factors on the Life Aspects of the Citrus Leaf Miner Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) in the Laboratory

Jawad,

Alnomani

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The study aimed to evaluate the efficiency of some integrated management factors in controlling the citrus leaf miner insect in the laboratory and to choose the best of them for field use to reduce the damage of this pest. The factors which used in this study involved two chemical pesticides Movento and Oxymatrine, as well as the use of growth regulators Match and biological fungi Beauveria bassiana (B.b..) and Metarhizium anisopliae (M.a..) and the interaction among them to get the most effective way to control the pest. The results of the study showed Movento is the most studied factor affecting the citrus miner insect in terms of the death rate on the larvae, as it recorded 96.52%, while the growth regulator Match recorded the lowest death rate of 49.20%. As for pupae, the chemical pesticide Movento also excelled by recording the highest death rate, reaching 62.59%, while the growth regulator Match recorded the lowest death rate for pupae stage, which amounted to 23.96%. It is clear from the results that the pupae are more resistant to factors that been used in this study compared with larvae. Results also proved that adults of insect were more effective with factors that used in this study compared with larvae and pupae stage. Movento pesticide showed mortality percentage reached to 100% for adults compared with growth regulator Match, which scored 73.62%, while it did not differ from the pesticide Oxymatrine, which gave 99.14%. The results of interactions among the factors on the larvae of the citrus leaf miner showed that the treatments Movento, Oxymatrine and Match, Movento+B.b.., total interaction had the highest mortality rate for the larvae stage which recorded 100% followed by the treatments Oxymatrine and the Movento + M.a. which recorded 95.56% each. While B.b. and M.a. treatments and the interaction between them, recorded the lowest mortality rate, reaching 9.25, 23.80, and 23.33%, respectively, as for pupae stage. The total interaction treatment only gave the highest mortality rate for pupae of the citrus leaf miner insect, as it recorded 100% and followed by the treatments Movento + B.b. and Movento + Match, which recorded 95.56% for each, while the treatments B.b. and M.a. was recorded the lowest death rate, which amounted to 6.68, 18.73, and 16.66%, respectively.

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“…Mites feed from individual plant cells, causing loss of chlorophyll and reduced photosynthetic productivity (Havasi et al, 2022), loss of plant vigor, leaf drop, and even plant death (Geroh and Tehri 2015; Susurluk and Gürkan 2020; Shang et al 2022). Chemical acaricides have long played a vital role in suppressing this pest (Li et al, 2017), but the evolution of resistance traits in TSSM, environmental hazards, and adverse effects on non-target organisms (Leviticus et al, 2020;Kheradmand et al, 2022;Havasi et al, 2022) provide powerful incentives to develop alternative control methods.…”

Section: Introductionmentioning

confidence: 99%

Sublethal effects of Oberon Speed® on Phytoseiulus persimilis and Amblyseius swirskii (Acari: Phytoseiiidae) and potential compatibility for integrated management of two-spotted spider mite

Rezaei,

Aramideh,

Michaud

et al. 2024

Preprint

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The two-spotted spider mite, Tetranychus urticae Koch (TSSM), is an important cosmopolitan pest of horticultural crops that is often managed in greenhouses with a combination of acaricides and augmentation of predatory mites. Here we examined the transgenerational effects of low concentrations of a widely-used acaricide, Oberon Speed® (a combination of spiromesifen and abamactin), on the life history of TSSM and two of its predators, Phytoseiulus persimilis Athias-Henriot and Amblyseius swirskii Athias-Henriot (Acari: Phytoseiidae). The concentrations employed corresponded to the LC10, LC20 and LC30 values calculated for TSSM protonymphs 48 h post-exposure in a topical bioassay, which yielded an LC50 value of 207.2 ppm. Parental exposure of TSSM to all three sublethal concentrations increased the total developmental time of progeny; both the LC20 and LC30 treatments reduced adult longevity and number of oviposition days, but only the LC30 treatment increased the preoviposition period. Similarly, both the LC20 and LC30 treatments significantly reduced life table parameters (r, R0, λ, and GRR), and increased generation time (T) and population doubling time (DT). Although maternal exposure to the acaricide had various impacts on progeny life history, the life table parameters of A. swirskii were largely unaffected in comparison to those of P. persimilis, suggesting the former species would be more compatible for integration with Oberon Speed® for control of TSSM in greenhouse vegetable production.

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Biological responses of Tetranychus urticae (Acari: Tetranychidae) to sub-lethal concentrations of the entomopathogenic fungus Beauveria bassiana

Cited by 10 publications

References 61 publications

Efficacy of the entomopathogenic fungus, Beauveria bassiana and Lecanicillium muscarium against two main pests, Bemisia tabaci (Genn.) and Tetranychus urticae (Koch), under geothermal greenhouses of Southern Tunisia

Efficacy of the entomopathogenic fungus, Beauveria bassiana and Lecanicillium muscarium against two main pests, Bemisia tabaci (Genn.) and Tetranychus urticae (Koch), under geothermal greenhouses of Southern Tunisia

The Effect of Using some Integrated Pest Management Factors on the Life Aspects of the Citrus Leaf Miner Phyllocnistis citrella Stainton (Lepidoptera: Gracillariidae) in the Laboratory

Sublethal effects of Oberon Speed® on Phytoseiulus persimilis and Amblyseius swirskii (Acari: Phytoseiiidae) and potential compatibility for integrated management of two-spotted spider mite

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