Antifeedant and Phagostimulant Activity of Extracts and Pure Compounds from <i>Hymenoxys robusta</i> on <i>Spodoptera exigua</i> (Lepidoptera: Noctuidae) Larvae

Juárez, Zaida Nelly; Fortuna, Antonio M.; Sánchez‐Arreola, Eugenio; López-Olguín, Jesús Francisco; Bach, Horacio; Hernández, Lucina

doi:10.1177/1934578x1400900703

Cited by 6 publications

(4 citation statements)

References 8 publications

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“…amygdalina if their extraction can be optimised. [ 39 ] Vernonioside is one of several steroidal saponins known from V . amygdalina which causes the leaves to taste bitter[ 40 ].…”

Section: Resultsmentioning

confidence: 99%

Extracts from Field Margin Weeds Provide Economically Viable and Environmentally Benign Pest Control Compared to Synthetic Pesticides

et al. 2015

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Plants with pesticidal properties have been investigated for decades as alternatives to synthetics, but most progress has been shown in the laboratory. Consequently, research on pesticidal plants is failing to address gaps in our knowledge that constrain their uptake. Some of these gaps are their evaluation of their efficacy under field conditions, their economic viability and impact on beneficial organisms. Extracts made from four abundant weed species found in northern Tanzania, Tithonia diversifolia, Tephrosia vogelii, Vernonia amygdalina and Lippia javanica offered effective control of key pest species on common bean plants (Phaseolus vulgaris) that was comparable to the pyrethroid synthetic, Karate. The plant pesticide treatments had significantly lower effects on natural enemies (lady beetles and spiders). Plant pesticide treatments were more cost effective to use than the synthetic pesticide where the marginal rate of return for the synthetic was no different from the untreated control, around 4USD/ha, compared to a rate of return of around 5.50USD/ha for plant pesticide treatments. Chemical analysis confirmed the presence of known insecticidal compounds in water extracts of T. vogelii (the rotenoid deguelin) and T. diversifolia (the sesquiterpene lactone tagitinin A). Sesquiterpene lactones and the saponin vernonioside C were also identified in organic extracts of V. amygdalina but only the saponin was recorded in water extracts which are similar to those used in the field trial. Pesticidal plants were better able to facilitate ecosystem services whilst effectively managing pests. The labour costs of collecting and processing abundant plants near farm land were less than the cost of purchasing synthetic pesticides.

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“…amygdalina if their extraction can be optimised. [ 39 ] Vernonioside is one of several steroidal saponins known from V . amygdalina which causes the leaves to taste bitter[ 40 ].…”

Section: Resultsmentioning

confidence: 99%

Extracts from Field Margin Weeds Provide Economically Viable and Environmentally Benign Pest Control Compared to Synthetic Pesticides

et al. 2015

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“…To evaluate the contact toxicity in our research, we found that the LD 50 for larvae treated with isolated extracts were lower than LD 50 of crude extract. There are several studies indicating that phytochemicals from O. canum (Lamiaceae), O. sanctum (Lamiaceae), Rhinacanthus nasutus (Acanthaceae), Abrus precatorius (Fabaceae), Murraya koenigii (Rutaceae), Curculigo orchioides (Hypoxidaceae), Evolulus alsinoides (Convolvulaceae), Phyllanthus debilis (Phyllanthaceae), Swertia corymbosa (Gentianaceae), Zanthoxylum limonella (Rutaceae), Acorus calamus (Acoraceae), Piper retrofractum (Piperaceae), Hymenoxys robusta (Asteraceae) and Alpinia galanga (Zingiberaceae) had bioefficacy in protecting agricultural products from other Spodoptera species 20–22,58,59 …”

Section: Discussionmentioning

confidence: 99%

“…There are several studies indicating that phytochemicals from O. canum (Lamiaceae), O. sanctum (Lamiaceae), Rhinacanthus nasutus (Acanthaceae), Abrus precatorius (Fabaceae), Murraya koenigii (Rutaceae), Curculigo orchioides (Hypoxidaceae), Evolulus alsinoides (Convolvulaceae), Phyllanthus debilis (Phyllanthaceae), Swertia corymbosa (Gentianaceae), Zanthoxylum limonella (Rutaceae), Acorus calamus (Acoraceae), Piper retrofractum (Piperaceae), Hymenoxys robusta (Asteraceae) and Alpinia galanga (Zingiberaceae) had bioefficacy in protecting agricultural products from other Spodoptera species. [20][21][22]58,59 The effective LD 50 value of camphor, an isolated extract, caused a higher mortality than the crude extract. Similarly, many studies reported that the pure extract, ⊍-thujone from Hyptis marrubioides Epling, linalool and 1,8-cineole from Ocimum basilicum L. had more toxic effects on S. frugiperda larvae.…”

Section: Discussionmentioning

confidence: 99%

Insecticidal efficacy and possibility of Combretum trifoliatum Vent. (Myrtales: Combretaceae) extracts in controlling Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

Changkeb,

Nobsathian,

Le Goff

et al. 2023

Pest Management Science

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BACKGROUNDThe fall armyworm Spodoptera frugiperda (J.E. Smith), is an important pest of agronomical crops. It is interesting to discover secondary metabolites in plants that are environmentally safer than synthetic pesticides. For this purpose, Combretum trifoliatum crude extract and its isolated compounds were investigated for their insecticidal activities against S. frugiperda.RESULTSThe median lethal dose (LD50) was evaluated in the second‐instar larvae using the topical application method. The isolated compounds, apigenin and camphor, demonstrated a highly toxic effect on larvae at a lower LD50 dose than crude extract. Moreover, when the larvae were exposed to crude extract concentrations, the development to pupa and adult stages was reduced by more than 50%. The ovicidal toxicity was examined using a hand sprayer. The extract concentration 5, 10, and 20 μg/egg significantly decreased the egg hatchability. In addition, crude extract showed a significant difference in inhibiting acetylcholinesterase (AChE) activity while crude extract and camphor showed significant inhibitory effects on carboxylesterase (CE) and glutathione‐S‐transferase (GST) activities.CONCLUSIONThe crude ethanol extract of Combretum trifoliatum was toxic to S. frugiperda in terms of larval mortality, negatively affecting biological parameters, and decreasing egg hatchability. Additionally, the activities of cholinergic and detoxifying enzymes were affected by crude extract and its isolated compounds. These results highlight that Combretum trifoliatum might be efficient as a bioinsecticide to control S. frugiperda. © 2023 Society of Chemical Industry.

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“…The insecticidal and antifeedant activities of compounds and extracts from the leaves of Hymenoxys robusta on S. exigua were evaluated by Juárez et al (2014). The methanol extract possessed suppressive activity, high antifeedant activity and inhibited oviposition.…”

Section: Sesquiterpene Lactonesmentioning

confidence: 99%

Insecticidal activity of Asteraceae species against Spodoptera spp. (Lepidoptera: Noctuidae): A review

Matos¹,

Cunha²

2022

Ciênc., Tecnol. Ambiente

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Plant extracts can be effective as crop protectants against pests and, therefore, can be used as an alternative to synthetic insecticides for the control of insect pests. The advantage of using natural insecticides is that they degrade rapidly and are generally less toxic to mammals than are traditional synthetic ones. Recent studies indicate the biological potential of Asteraceae species, which have, for example, repellent, antifeedant, acaricidal, antifungal and insecticidal activities.Among the numerous insect pests of economically important crops, the genus Spodoptera bears some of the most destructive in the world due to the worldwide distribution of the different species and their wide host ranges. Thus, in this review, we present data on the insecticidal effect against Spodoptera spp. caused by pure metabolites and crude extracts obtained from Asteraceae plants.

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Antifeedant and Phagostimulant Activity of Extracts and Pure Compounds from Hymenoxys robusta on Spodoptera exigua (Lepidoptera: Noctuidae) Larvae

Cited by 6 publications

References 8 publications

Extracts from Field Margin Weeds Provide Economically Viable and Environmentally Benign Pest Control Compared to Synthetic Pesticides

Extracts from Field Margin Weeds Provide Economically Viable and Environmentally Benign Pest Control Compared to Synthetic Pesticides

Insecticidal efficacy and possibility of Combretum trifoliatum Vent. (Myrtales: Combretaceae) extracts in controlling Spodoptera frugiperda (J.E. Smith) (Lepidoptera: Noctuidae)

Insecticidal activity of Asteraceae species against Spodoptera spp. (Lepidoptera: Noctuidae): A review

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