Reduction of adult olive fruit fly populations by targeting preimaginals in the soil with the entomopathogenic fungus Metarhizium brunneum

Yousef-Yousef, Meelad; Garrido‐Jurado, Inmaculada; Ruíz-Torres, M.; Quesada‐Moraga, Enrique

doi:10.1007/s10340-016-0779-y

Cited by 24 publications

(28 citation statements)

References 38 publications

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“…On the other hand, we calculated the LC 50 of H. didymator inoculated with the EAMa 01/58‐Su strain, which was of 1.85 × 10 6 conidia ml −1 . Although our results are consistent with those obtained for this strain and other parasitoids, it is shown that the susceptibility of H. didymator to EAMa 01/58‐Su is higher than those evidenced by different insect pests . This result is of great importance to develop a suitable strategy for biological control as it allows to compare the susceptibility of the parasitoid with other insects.…”

Section: Discussionsupporting

confidence: 90%

“…On the other hand, entomopathogenic fungi have great potential as biological control agents against many insect pests . Their contact mode of action and ability to secrete insecticidal compounds put them at the vanguard of the global development of alternative control strategies .…”

Section: Introductionmentioning

confidence: 99%

“…Indeed, our previous studies have reported the efficacy of several isolates of entomopathogenic fungi for control of S. littoralis , both by direct inoculation of larvae with the fungus and by feeding larvae with leaves from endophytically‐colonized plants . The M. brunneum isolate EAMa 01/58‐Su, in particular, has been shown to be virulent against S. littoralis and other economically important insect pests …”

Section: Introductionmentioning

confidence: 99%

“…13 On the other hand, entomopathogenic fungi have great potential as biological control agents against many insect pests. 19,20 Their contact mode of action and ability to secrete insecticidal compounds put them at the vanguard of the global development of alternative control strategies. 19 Among them, it is worth mentioning the genus Metarhizium, which comprehends several species of a great efficacy as biocontrol agents, such as Metarhizium anisopliae (Metsch) (Hypocreales: Clavicipitaceae) and Metarhizium brunneum Petch (Hypocreales: Clavicipitaceae).…”

Section: Introductionmentioning

confidence: 99%

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Compatibility between the endoparasitoid Hyposoter didymator and the entomopathogenic fungus Metarhizium brunneum: a laboratory simulation for the simultaneous use to control Spodoptera littoralis

Miranda-Fuentes

Quesada‐Moraga

Aldebis

et al. 2019

Pest Management Science

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BACKGROUND The cotton leafworm, Spodoptera littoralis, is one of the most destructive pests in the Mediterranean basin, being predominantly controlled using synthetic chemical pesticides. Strain EAMa 01/58‐Su of the fungus Metarhizium brunneum and the parasitoid Hyposoter didymator are promising biological control agents for this pest. In this study, we assessed the compatibility between these two agents to control S. littoralis under joint attack scenarios. RESULTS Firstly, the direct and indirect effects of the fungus towards parasitoid adults were studied. The fungus significantly decreased life expectancy of the parasitoid (mortality = 62.5%; mean lethal concentration = 1.85 × 106 conidia ml−1; average survival time = 92.2 h) when applied at high concentrations (108 conidia ml−1), whereas it did not affect the reproductive potential of the parasitoid females during the 3 days after treatment. Secondly, the combinations between the two agents to control S. littoralis under different simultaneous use scenarios (inoculation of S. littoralis larvae with the fungus before being exposed to parasitoid females and vice versa) were investigated, with additive effect in all cases. A significant effect on fitness (preimaginal development time and reproductive potential) of the F1 parasitoid generation were detected. Moreover, parasitization significantly reduced the total hemocytes in S. littoralis hemolymph compared with the control, promoting fungal infection. Finally, parasitoids showed a significant preference for non‐inoculated S. littoralis larvae. CONCLUSIONS We demonstrated compatibility (additive effect) between fungus and parasitoid under different joint attack scenarios to control S. littoralis in laboratory conditions. However, this will be supported by our ongoing greenhouse and field studies. © 2019 Society of Chemical Industry

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Compatibility between the endoparasitoid Hyposoter didymator and the entomopathogenic fungus Metarhizium brunneum: a laboratory simulation for the simultaneous use to control Spodoptera littoralis

Miranda-Fuentes

Quesada‐Moraga

Aldebis

et al. 2019

Pest Management Science

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“…A high reduction (50 % to 70 %) in the B. oleae population emerging during the spring from the soil of treated plots was seen compared to controls plots. The authors marked it as efficient biological control method (Yousef et al, 2016).…”

Section: Alternative Methods For Protection Against Olive Flymentioning

confidence: 99%

A review of plant protection against the olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) and molecular methods to monitor the insecticide resistance alleles

Hladnik

2017

AAS

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Olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) is one of the most important olive pests worldwide. Most plant protection measures are based on insecticides, especially organophosphates, pyrethroids, and recently a spinosad. Insecticides are used as cover sprays or in more environmentally friendly methods in which insecticides are used in combination with attractants and pheromones as bait sprays or for mass trapping. However, due to negative impacts of insecticides to environment, new plant protection methods are constantly developing with the aim to lower the consumption of insecticides or even to eliminate them by biological control with entomopathogenic organisms, sterile insect technique (SIT), or transgenic method RIDL (release of insects carrying a dominant lethal). However, these methods need to be improved in order to guarantee adequate protection. Alternative methods than those traditionally used are required due to long term usage causing the development of resistance to the insecticides, ultimately lowering their effectiveness. Molecular methods for monitoring the frequencies of resistant alleles and the current status of resistance alleles in olive growing countries are reviewed here.

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Threat of Drosophila suzukii as an Invasive Species and the Potential of Entomovectoring

Taning

Smagghe

2020

Entomovectoring for Precision Biocontrol and Enhanced Pollination of Crops

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Reduction of adult olive fruit fly populations by targeting preimaginals in the soil with the entomopathogenic fungus Metarhizium brunneum

Cited by 24 publications

References 38 publications

Compatibility between the endoparasitoid Hyposoter didymator and the entomopathogenic fungus Metarhizium brunneum: a laboratory simulation for the simultaneous use to control Spodoptera littoralis

Compatibility between the endoparasitoid Hyposoter didymator and the entomopathogenic fungus Metarhizium brunneum: a laboratory simulation for the simultaneous use to control Spodoptera littoralis

A review of plant protection against the olive fly (Bactrocera oleae (Rossi, 1790) Gmelin) and molecular methods to monitor the insecticide resistance alleles

Threat of Drosophila suzukii as an Invasive Species and the Potential of Entomovectoring

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