Essential Oils as a Source of Ecofriendly Insecticides for Drosophila suzukii (Diptera: Drosophilidae) and Their Potential Non-Target Effects

Souza, Michele Trombin de; Souza, Mireli Trombin de; Morais, Maíra Chagas; Oliveira, Daiana da Costa; Melo, Douglas José de; Figueiredo, Leonardo Souza Reis; Zarbin, Paulo H. G.; Zawadneak, María Aparecida Cassilha; Bernardi, Daniel

doi:10.3390/molecules27196215

Cited by 13 publications

(7 citation statements)

References 56 publications

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“…In similar tests, also regarding the assessment of the repellent effects, geranium (P. asperum) was reported to be a great source of repellent for this pest [25], which is in accordance with this study. Considering geranium's complex chemical composition, it may act on more than one site, but EOs mostly affect the central nervous system, causing paralysis and death of the insects [52]. The identified major compounds found in our study were citronellol (22.16%) and geraniol (21.22%), which are most likely responsible for the insecticidal activity against D. suzukii as well [35,52].…”

Section: Discussionmentioning

confidence: 64%

“…Considering geranium's complex chemical composition, it may act on more than one site, but EOs mostly affect the central nervous system, causing paralysis and death of the insects [52]. The identified major compounds found in our study were citronellol (22.16%) and geraniol (21.22%), which are most likely responsible for the insecticidal activity against D. suzukii as well [35,52]. These components in the geranium essential oils might play a primary role in the mode of action against D. suzukii.…”

Section: Discussionmentioning

confidence: 99%

“…and Mentha spp. EOs show high toxicity in topical application assays, while EOs of C. verum and C. citratus have high toxicity in different types of bioassays through ingestion and the reduction of oviposition [52]. EOs of Eucalyptus citriodora and Melaleuca teretifolia belonging to the Myrtace family show potential as a fumigant and have contact toxicities against this pest [60].…”

Section: Discussionmentioning

confidence: 99%

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Insecticidal Activity of Selected Essential Oils against Drosophila suzukii (Diptera: Drosophilidae)

Bošković,

Vuković,

Lazić

et al. 2023

Plants

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The spotted wing drosophila (SWD), Drosophila suzukii Matsumura (Diptera: Drosophilidae), is an invasive polyphagous pest of soft-skinned fruit that has started to threaten small fruit production in Europe since 2008. High reproductive capacity, short generation time, and difficulties in visualizing early damage contribute to its rapid spread. Currently, the control strategy against D. suzukii mostly relies on treatment with synthetic insecticides. Keeping in mind that this pest causes the greatest damage during the harvesting period, control using chemicals is not recommended due to the increased risk of high pesticide residue levels in the fruit. With the aim of reducing the use of insecticides, there is a need for developing an environmentally safer way of control. Alternative solutions could rely on the use of essential oils (EOs), which can be used in conventional and organic production systems. Four essential oils, geranium (Pelargonium graveolens), dill (Anethum graveolens), Scots pine (Pinus sylvestris), and bergamot (Citrus bergamia), were assessed for their insecticidal effects using four different tests (contact toxicity, fumigant-contact toxicity, repellent effect, and multiple-choice tests). The EOs applied were dissolved in acetone at three different concentrations. The most promising one was the geranium essential oil, which had the best effect in all conducted tests, even at the lowest applied concentration. Geranium oil caused very high mortality (95%), even at the lowest concentration applied, after 24 h in the fumigant-contact test, and it caused a mortality of over 85% in the contact test. It was also noticed that geranium demonstrated a deterrent effect by repelling females from laying eggs for four days after at the lowest applied concentration. Scots pine and dill EOs have moderate to strong effects in most tests. The mortality of 100% was achieved for the highest applied concentration in the fumigant-contact and contact tests. Bergamot EO did not have any significant insecticidal activity. Geranium, Scots pine, and dill have great potential to be used as an environmentally friendly way of controlling D. suzukii as they exhibit deterrent, repellent, and insecticidal effects.

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Section: Discussionmentioning

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Insecticidal Activity of Selected Essential Oils against Drosophila suzukii (Diptera: Drosophilidae)

Bošković,

Vuković,

Lazić

et al. 2023

Plants

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“…Considering that EOs may be used in both conventional and organic agriculture with little or no environmental impact, their use as bioinsecticides is of great interest [ 45 ]. Although EOs have a complex chemical composition and can act on multiple sites, most of the paralysis and death of insects caused by these mixtures is explained by damage to the central nervous system [ 46 ]. From the literature data, it has been observed that P. graveolens EO, commonly referred to as geranium EO, has insecticidal and insect-repelling qualities.…”

Section: Discussionmentioning

confidence: 99%

An In-Depth Study on the Chemical Composition and Biological Effects of Pelargonium graveolens Essential Oil

Kačániová,

Vukic,

Vukovic

et al. 2023

Foods

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The essential oil of Pelargonium graveolens (PGEO) is identified in the literature as a rich source of bioactive compounds with a high level of biological activity. This study aimed to examine the chemical profile of PGEO as well as its antioxidant, antibacterial, antibiofilm, and insecticidal properties. Its chemical composition was analyzed using gas chromatography–mass spectrometry (GC-MS), achieving comprehensive identification of 99.2% of volatile compounds. The predominant identified compounds were β-citronellol (29.7%) and geraniol (14.6%). PGEO’s antioxidant potential was determined by means of DPPH radical and ABTS radical cation neutralization. The results indicate a higher capacity of PGEO to neutralize the ABTS radical cation, with an IC50 value of 0.26 ± 0.02 mg/mL. Two techniques were used to assess antimicrobial activity: minimum inhibitory concentration (MIC) and disk diffusion. Antimicrobial evaluation using the disk diffusion method revealed that Salmonella enterica (14.33 ± 0.58 mm), which forms biofilms, and Priestia megaterium (14.67 ± 0.58 mm) were most susceptible to exposure to PGEO. The MIC assay demonstrated the highest performance of this EO against biofilm-forming S. enterica (MIC 50 0.57 ± 0.006; MIC 90 0.169 ± 0.08 mg/mL). In contrast to contact application, the assessment of the in situ vapor phase antibacterial activity of PGEO revealed significantly more potent effects. An analysis of antibiofilm activity using MALDI-TOF MS demonstrated PGEO’s capacity to disrupt the biofilm homeostasis of S. enterica growing on plastic and stainless steel. Additionally, insecticidal evaluations indicated that treatment with PGEO at doses of 100% and 50% resulted in the complete mortality of all Harmonia axyridis individuals.

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“…The reduced number of effective control practices for D. suzukii has been a serious problem for cherry and berry production in the Neotropical region [ 1 , 2 , 50 , 51 , 52 , 53 ]. The reliance on a reduced number of molecules can either be worsened by the fact that some of these molecules can also have detrimental effects on non-target organisms [ 54 , 55 ]. For instance, T. anastrephae has been shown to be susceptible to the conventional insecticides used in the management of D. suzukii [ 7 , 56 , 57 ].…”

Section: Discussionmentioning

confidence: 99%

Novel Lactone-Based Insecticides and Drosophila suzukii Management: Synthesis, Potential Action Mechanisms and Selectivity for Non-Target Parasitoids

Mantilla‐Afanador

Araújo

Teixeira

et al. 2023

Insects

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Drosophila suzukii, an invasive insect pest, poses a significant threat to various fruit crops. The use of broad-spectrum insecticides to control this pest can reduce the effectiveness of biological control agents, such as the parasitoid Trichopria anastrephae. Here, we evaluated the toxicity of newly synthesized lactone derivatives on D. suzukii and their selectivity towards T. anastrephae. We used in silico approaches to identify potential targets from the most promising molecules in the D. suzukii nervous system and to understand potential differences in susceptibilities between D. suzukii and its parasitoid. Of the nine molecules tested, (rac)-8 and compound 4 demonstrated efficacy against the fly. Exposure to the estimated LC90 of (rac)-8 and compound 4 resulted in a mortality rate of less than 20% for T. anastrephae without impairing the parasitoid’s functional parasitism. The in silico predictions suggest that (rac)-8 and compound 4 target gamma amino butyric acid (GABA) receptors and transient receptor potential (TRP) channels of D. suzukii. However, only the reduced interaction with TRP channels in T. anastrephae demonstrated a potential reason for the selectivity of these compounds on the parasitoid. Our findings suggest the potential for integrating (rac)-8 and compound 4 into D. suzukii management practices.

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Essential Oils as a Source of Ecofriendly Insecticides for Drosophila suzukii (Diptera: Drosophilidae) and Their Potential Non-Target Effects

Cited by 13 publications

References 56 publications

Insecticidal Activity of Selected Essential Oils against Drosophila suzukii (Diptera: Drosophilidae)

Insecticidal Activity of Selected Essential Oils against Drosophila suzukii (Diptera: Drosophilidae)

An In-Depth Study on the Chemical Composition and Biological Effects of Pelargonium graveolens Essential Oil

Novel Lactone-Based Insecticides and Drosophila suzukii Management: Synthesis, Potential Action Mechanisms and Selectivity for Non-Target Parasitoids

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