Antifeedant activity of different solvent extracts of Gliricidia sepium against third instar larvae of Helicoverpa armigera (Hubner) (Lepidoptera : Noctuidae)

Jose, Sajani; Sujatha, K.

doi:10.22192/ijarbs.2017.04.04.026

Cited by 7 publications

(4 citation statements)

References 5 publications

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“…A study has also shown that pawpaw leaf extract exhibited prevented feeding by Spodoptera litura larvae (Rahayu et al, 2020). A group of researchers have demonstrated that terpenoids and phenols present in plant material inhibit larval feeding and can also disrupt hormonal balance or make food unpalatable (Jose and Sujatha, 2017). In some cases, they can also act on the chemosensillar of the larvae resulting in feeding deterrence.…”

Section: Discussionmentioning

confidence: 99%

TOXICITY OF SOME BOTANICAL POWDERS ON MAIZE WEEVIL Sitophilus Zeamais MOTSCHULSKY 1855 (COLEOPTERA: CURCULIONIDAE)

Nsobinenyui¹,

WS²,

BN³

et al. 2022

Sust.food.agr.

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Maize production system is challenged by a lot of biotic and abiotic stressors. Among the biotic stressors, the maize weevil is infamous for causing severe damage to stored maize, reducing both qualitative and quantitative qualities. Incessant use of synthetic insecticide to manage maize weevil has led to a public outcry and a need for more eco-compatible options. Botanicals provide a cheap, safe and easy-to-make, and eco-friendly option for maize weevil management. This study was designed to assess the toxicity of four medicinal plant powders on some parameters of maize weevil. The study was conducted in June-July, 2020 in the Food Science laboratory of Catholic University of Cameroon, Bamenda. Plant powders of Carica papaya seeds, Cupressus macrocarpa leaves, Piper nigrum seeds and a control (no-input) were assessed. All the parameters assessed were significantly influenced by botanical powders (P < 0.05). The highest F1 emergence suppression was observed from piper treatments, followed by cypress and pawpaw treatments. The highest and lowest maize weight loss after storage were 21.0g and 13.25g from control and piper treatments respectively. The highest germination percentage was 95.0%, followed by 80.0%, 75.0% and 52.5% from piper (bush pepper or black pepper, cypress, pawpaw and control treatment, respectively. High repellency potential was observed from botanicals and that of piper can be described as a ‘very good repellant’ and ‘good repellant’ for the other botanicals. The highest adult weevil mortality was 80.05, recorded from piper. The current study demonstrate that botanical powders can play a significant role in maize weevil management. Piper seed powder is highly recommended for management of maize weevil. In addition, it is recommended that botanical powders be incorporated into integrated pest management strategies in order to guarantee safe, healthy and quality maize in storage. Such activities are in line with the objective of sustainable development goals (SDG).

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Section: Discussionmentioning

confidence: 99%

TOXICITY OF SOME BOTANICAL POWDERS ON MAIZE WEEVIL Sitophilus Zeamais MOTSCHULSKY 1855 (COLEOPTERA: CURCULIONIDAE)

Nsobinenyui¹,

WS²,

BN³

et al. 2022

Sust.food.agr.

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“…Frazier signified that antifeedants can be found amongst all the major classes of secondary metabolites as they are toxic substances against insects (Frazier, 1986). Various secondary metabolites including alkaloids, chromenes, coumarins, cucurbitacins, phenolics, phenols, polyacetylenes, quassinoids, saponins, tannins, terpenes and terpenoids were reported as potent insect antifeedants (Schoonhoven, 1982;Adeyemi, 2010;Lingathurai et al, 2011;Kumar et al, 2013;Adeyemi and Mohammed, 2014;Jose and Sujatha, 2017). Effective natural antifeedants are triterpenes, sesquiterpene lactones and alkaloids, cucurbitacines, quinines and phenols and the potent antifeedants belong to the terpenoid group, which has the greatest number and diversity of known antifeedants compounds (Nawrot et al, 1986;Norris, 1986;Van beek and Groot, 1986;Adeyemi and Mohammed, 2014).…”

Section: Discussionmentioning

confidence: 99%

Antifeedant Activity Of Leaf Extracts Against The Adults Of Red Pumpkin Beetle Raphidopalpa Foveicollis Lucas 1849 (Coleoptera: Chrysomelidae)

Arivoli¹,

Tennyson²

2020

Sust.food.agr.

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Red pumpkin beetle is the most destructive polyphagous pest of cucurbit vegetables. Antifeedants from plant extracts and their phytochemical constituents can be used as a safer alternative to harmful chemical pesticides to control agricultural pests and have emphasized their potential as ecologically safe pesticides. In the present study, the crude solvent leaf extracts of selected plants were screened and tested at 0.1% concentration after 24 hours for their antifeedant activity against the adults of Raphidopalpa foveicollis by leaf disc no choice bioassay method. Amongst them, more than 50% antifeedant activity was noted in the ethyl acetate of Cassia fistula (83.43); hexane and diethyl ether of Leucas aspera (67.28 and 69.89) and Streblus asper (61.34 and 72.43), and dichloromethane extract of Plumbago zeylanica (60.15) while rest of the leaf extracts exhibited varying degree of moderate or lesser antifeedant activity. This indicated that the active principles present in the leaf extracts inhibited the feeding behaviour of Raphidopalpa foveicollis by making the food unpalatable resulting in feeding deterrence. The results obtained in the present study suggests that further studies should concentrate on the activity of the phytochemical compounds present in each promising extracts of the plant tested.

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“…In addition, the treatment might have caused a disruption in the hormonal balance that rendered the food unpalatable to the beetles. Several studies indicated that the secondary compounds of plants are toxic to insects and contain elements that are similar to the molting hormones that reduce the productivity of adult insects [12,13]. [14], indicated the superiority of the terpene extract of leaves of Concorpus lancifolius in causing higher mortality rate of adults of the small grain bug Rhyzopertha dominica and the red flour beetles Tribolium castaneum (14.18 and 12.00 %, respectively) at a concentration of 30 mg/ ml.…”

Section: Effects Of Crude Terpenes Extracts From a Majus Leaves And F...mentioning

confidence: 99%

Effects of Crude Terpene Extarcts from Ammi majus L. Leaves and Flowers on some Aspects of Life Performance of Oryzaephilus surinamensis L. (Coleoptera; Silvanidae)

Barhi

Rashid

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The current study was conducted with the aim of evaluating the effects of crude terpene extracts of leaves and flowers collected from of Ammi majus on some aspects of the biological performance of Oryzaephilus surinamensis grain beetle. The results revealed that the crude terpene extract of flowers at concentrations of 10, 20 and 30 mg / ml had a significant effects on the cumulative mortality rate of the beetle’s different life stages. The highest mortality rate values reached (73.3, 46.7)% at the concentration 30 mg / ml after 72 hours treatment for the second larval instars and adults, respectively. While the mortality rates achieved from treatment with the same concentrations of the crude terpene leaf extract reached (53.3, 33.3)% after 72 hours for the second larval instars and adults.

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Antifeedant activity of different solvent extracts of Gliricidia sepium against third instar larvae of Helicoverpa armigera (Hubner) (Lepidoptera : Noctuidae)

Cited by 7 publications

References 5 publications

TOXICITY OF SOME BOTANICAL POWDERS ON MAIZE WEEVIL Sitophilus Zeamais MOTSCHULSKY 1855 (COLEOPTERA: CURCULIONIDAE)

TOXICITY OF SOME BOTANICAL POWDERS ON MAIZE WEEVIL Sitophilus Zeamais MOTSCHULSKY 1855 (COLEOPTERA: CURCULIONIDAE)

Antifeedant Activity Of Leaf Extracts Against The Adults Of Red Pumpkin Beetle Raphidopalpa Foveicollis Lucas 1849 (Coleoptera: Chrysomelidae)

Effects of Crude Terpene Extarcts from Ammi majus L. Leaves and Flowers on some Aspects of Life Performance of Oryzaephilus surinamensis L. (Coleoptera; Silvanidae)

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