Efficacy of binary combinations between methyl salicylate and carvacrol against thrips <i>Anaphothrips obscurus</i>: laboratory and field trials

Lu, Xiaopeng; Liu, Jiahuan; Wu, Hua Hsi; Ma, Zhiqing; Xing, Zhang

doi:10.1002/ps.5551

Cited by 17 publications

(9 citation statements)

References 47 publications

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“…1994). It has been shown that 6 essential oil components (methyl salicylate, carvacrol, thymol, trans-cinnamaldehyde, diallyl trisul de, and l-perillaldehyde) display fumigant toxicity against nymphs and adults of thrips (Lu et al 2020). Moreover, in addition to these compounds with insecticide-like e cacy, vaporable PSMs (volatile organic compounds [VOCs]), including terpenoids and green leaf volatiles, and benzenoids/phenylpropanoids (phenols), are well known to act as airborne cues in repelling herbivores, in attracting pollinators and herbivore enemies, and in between/within plant communications (Arimura et al 2009).…”

Section: Introductionmentioning

confidence: 99%

An amino acid ester of menthol elicits defense responses in plants

et al. 2021

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Terpenoids, including menthol, exhibit potent abilities as plant defense potentiators in agriculture and horticulture. In the current study, we developed new terpene derivatives that consisted of menthol and various amino acids and that were expected to act as powerful plant defense potentiators. We used 6 amino acids possessing low-reactive sidechains to synthesize an array of amino acid ester of menthol (ment-aa) compounds. Transcript levels of two defense genes (pathogenesis-related 1 [PR1] and trypsin inhibitor [TI]) were evaluated in leaves of soybean plants 24 h after application of aquatic solution of menthol or menthol-aa, and revealed that the menthol menthyl ester of valine (ment-Val) alone elevated the transcript level of defense genes, and it did so only at the low dose of 1 µM, not at higher or lower doses tested. Moreover, it appeared that histone acetylation was involved in this effect. Application of ment-Val enabled soybean plants to sustain the increased transcript levels in their leaves for up to 3 days. Moreover, when ment-Val was additionally applied at day 4, at which time the transcript level had declined to the basal level, the transcript level was re-elevated, indicating the possibility that ment-Val could be repeatedly used to sustain pest control. Ment-Val was found to be chemically stable and effective for defense of several crop species. Collectively, these data show that terpenoid conjugates are useful for pest control instead of or in addition to pesticides.

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Section: Introductionmentioning

confidence: 99%

An amino acid ester of menthol elicits defense responses in plants

et al. 2021

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“…Linalool inhibits AChE, while peppermint oil inhibits gamma-aminobutyric acid (GABA) [ 46 , 47 ]. When mixed together and applied to F. insularis , the mortality was higher than that of ( R )-linalool applied individually because the simultaneous inhibition of AChE and GABA was more damaging than only AChE inhibition [ 48 ]. Alternatively, these synergisms may be a reflection of the exceptional insecticidal activity of the adjuvants, rather than their interaction with (R)-linalool.…”

Section: Discussionmentioning

confidence: 99%

Fumigant Toxicity of Essential Oils against Frankliniella occidentalis and F. insularis (Thysanoptera: Thripidae) as Affected by Polymer Release and Adjuvants

Gharbi

Tay

2022

Insects

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Frankliniella occidentalis is among the most economically significant pests of greenhouse crops, whose resistance to conventional insecticides has created demand for biopesticides such as essential oils. We assessed the fumigant toxicity of linalool against F. occidentalis, F. insularis, and Solanum lycopersicum. Thrips were fumigated with polyacrylamide hydrogels containing either (R)-linalool, (S)-linalool, racemic linalool, or a binary mixture of (R)-linalool with one of twelve adjuvants (i.e., peppermint, cedarwood, neem, clove, coconut, jojoba, soybean, olive, α-terpineol, 1,8-cineole, trans-anethole, or (R)-pulegone). Solanum lycopersicum seedlings were exposed to (R)-linalool or a mixture of (R)-linalool and peppermint oil via conditioned hydrogels or foliar spray. For F. insularis, (R)-linalool was more toxic than (S)-linalool, with LC50 values of 11.7 mg/L air and 16.7 mg/L air, respectively. Similarly for F. occidentalis, (R)-linalool was more toxic than (S)-linalool, with LC50 values of 29.0 mg/L air and 34.9 mg/L air, respectively. Peppermint oil and α-terpineol were the only synergists, while the other adjuvants exhibited varying degrees of antagonism. All seedling treatments demonstrated phytotoxicity, but symptoms were most severe for foliar sprays and mixtures containing peppermint oil. While hydrogels conditioned in linalool may be a favorable substitute to conventional insecticides, the cross-resistance demonstrated herein indicates that expectations should be metered.

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“…Sobhy et al (2015) found that tomato plant treatment with salicylic acid mimic reduced larval survival rate of Spodoptera littoralis (Boisduval) compared with the control treatment. Also, Lu et al (2020) found that methyl salicylate was effective on thrips.…”

Section: -Nymphal Stagementioning

confidence: 99%

The Impact of Faba Bean Seeds Soaking in Salicylic Acid, Acetyl-Salicylic Acid and Methyl Salicylate on Inducing Plant Resistance against the Cowpea Aphid, Aphis craccivora Koch.

El-Solimany

2020

Journal of Plant Protection and Pathology

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The present work was conducted in the laboratory of Plant protection, Shandweel Agricultural Research Station, Sohag Governorate to investigate the effect of priming of faba bean seeds with three concentrations, 50, 100 and 200ppm for each substances of salicylic acid, acetyl salicylic acid and methyl salicylate on survival, duration and wing formation of the cowpea aphid, Aphis craccivora Koch., also, their repellent effect was determined. Results obtained showed that the highest effect was recorded in salicylic acid at 200ppm (86.96%) after 24 hours, however, no repellent effects were recorded from acetylsalicylic acid. Priming faba bean seeds with salicylic acid and methyl salicylate elongated the nymphal stage, decreased their survival and increased wing formation compared to control. The effects of the three substances were found to be concentrated dependant. The use of salicylic acid and methyl salicylate as resistance inducers hold great promise for application for A. craccivora control as eco-friendly method.

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Efficacy of binary combinations between methyl salicylate and carvacrol against thrips Anaphothrips obscurus: laboratory and field trials

Cited by 17 publications

References 47 publications

An amino acid ester of menthol elicits defense responses in plants

An amino acid ester of menthol elicits defense responses in plants

Fumigant Toxicity of Essential Oils against Frankliniella occidentalis and F. insularis (Thysanoptera: Thripidae) as Affected by Polymer Release and Adjuvants

The Impact of Faba Bean Seeds Soaking in Salicylic Acid, Acetyl-Salicylic Acid and Methyl Salicylate on Inducing Plant Resistance against the Cowpea Aphid, Aphis craccivora Koch.

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