Withania somnifera acts as a potential insect growth regulator in the polyphagous pest, Pericallia ricini

Gaur, Sandeep Kumar; Kumar, Krishna

doi:10.1515/jppr-2017-0052

Cited by 3 publications

(4 citation statements)

References 53 publications

(60 reference statements)

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“…Topical administration of seed extracts of W. somnifera to prepupae of S. litura and P. ricini was more severe as it alone caused toxicity in a dose-dependent manner as compared to root extracts where no toxicity was observed. This is comparable with the similar findings in P. ricini where treatment with seed extracts produced toxic effects but not with the root extracts of W. somnifera (Gaur & Kumar, 2017b). These toxicological effects may be due to the presence of certain bioactive compounds such as withanolide-WS-2 (aliphatic ester), withanolide-WS-1 (aliphatic ketone) in the seeds of W. somnifera (Dar et al, 2015).…”

Section: Discussionsupporting

confidence: 89%

“…It is used as remedy for several disease due to its potential therapeutic effects such anti-inflammatory, antioxidant, anti-aging, anticancer, anti-anxiety, anti-depressant, anti-ulcer, antihypertensive, antimicrobial, cardioprotectant, immunomodulator, and hypoglycemic agent (Alam et al, 2012). Whereas the medicinal properties of Ashwagandha are well documented, its insect growth regulatory effects have not been described in details except in a few instances involving only last instar larvae of certain lepidopteran pests (Gaur & Kumar, 2017a, 2017b. In the present communication, a comparative efficacy of seed and root extracts of Ashwagandha, W. somnifera, has been described as a result of administration of these to prepupae of two economically important lepidopteran pests viz.…”

Section: Introductionmentioning

confidence: 82%

“…For instance, ethyl 11-chloro-3,7,11-trimethyldodec-2-trans-enoate application caused the development of larval-pupal and pupal-adult intermediates in Tortrix viridana (Lepidoptera: Tortricidae) (Novak & Sehnal, 1973); methoprene caused formation of pupal-adult intermediates in S. littoralis (Kocak & Kilincer, 1997); pyriproxyfen and diofenolan caused production of larval-pupal intermediates in S. litura (Singh & Kumar, 2015a). The formation of intermediates/chimeras having larval, pupal, and adult characteristics as a result of administration of seed and root extracts of W. somnifera to P. ricini have also been observed with IGR (Gaur & Kumar, 2017b) and JHAs like diofenolan and pyriproxyfen (Singh & Kumar, 2011a, 2011b. It has been suggested that the phytochemicals/secondary metabolites of plants act as JH mimics (Bede & Tobe, 2000) and are responsible for interference with the normal hormonal coordination of the metabolic processes of the developing stages (Sakthivadivel & Thilagavathy, 2003).…”

Section: Discussionmentioning

confidence: 99%

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A comparative bioefficacy of seed and root extracts of a medicinal plant, Withania somnifera when administered to prepupae of lepidopteran insects, Spodoptera litura (Lepidoptera: Noctuidae) and Pericallia ricini (Lepidoptera: Arctiidae)

Gaur

Kumar

2019

JoBAZ

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Background: The lepidopterans, Spodoptera litura and Pericallia ricini, are polyphagous pests of agricultural importance. The unscrupulous and non-judicious use of chemical pesticides for controlling the insect pests has resulted into severe environmental hazards, threatening non-target organisms and human health. Results: Administration of seed and root extracts of a medicinal plant, Ashwagandha (Withania somnifera) to prepupae of two economically important insect pests viz. S. litura and P. ricini resulted into disruption of molting and metamorphosis leading to a number of developmental aberrations such as prolongation of the life span of prepupae, postponement of pupal-adult ecdysis, ecdysial failure, reduced pupation and adult emergence, formation of larval-pupal and pupal-adult intermediates, abnormal pupae, and adultoids. Treatment with seed extracts of W. somnifera was more effective as it alone caused mortality in both the lepidopteran insects viz. S. litura and P. ricini, whereas no such effect was observed when treated with root extracts. P. ricini was more susceptible to W. somnifera as it resulted into formation of larval-pupal-adult chimeras in addition to effects described earlier, whereas this effect was not observed in the case of S. litura. Conclusion: These results are similar to these produced by the administration of JHAs and hence mimic their action by the way of interfering with the neuroendocrine system.

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Section: Discussionsupporting

confidence: 89%

Section: Introductionmentioning

confidence: 82%

Section: Discussionmentioning

confidence: 99%

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A comparative bioefficacy of seed and root extracts of a medicinal plant, Withania somnifera when administered to prepupae of lepidopteran insects, Spodoptera litura (Lepidoptera: Noctuidae) and Pericallia ricini (Lepidoptera: Arctiidae)

Gaur

Kumar

2019

JoBAZ

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“…The extract of various parts in W. somnifera has been reported as a potent insect growth regulator ( Gaur and Kumar, 2017 , 2018 ; Gaur and Kumar, 2019 ). The current study has focused on different effects of methanolic seed extract of this plant exerted on an important pest of mulberry.…”

Section: Discussionmentioning

confidence: 99%

Methanolic Extract of Winter Cherry Causes Morpho-Histological and Immunological Ailments in Mulberry Pyralid Glyphodes pyloalis

et al. 2020

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The effect of Withania somnifera a medicinal plant seed extract was tested against lesser mulberry pyralid, a potential pest of mulberry. The mulberry leaves were used for silk production in rural areas of northern Iran. The extract was administered orally by leaf dipping method in two lower (5%W/V) and higher (15%W/V) dosages to third instar larvae (<24 h) for biological assays and to fifth instar larvae (<24 h) for Physiological studies. The results showed formation of larvoids (Ls), larval-pupal intermediates (LPIs), pupoids (Ps) and pupal-adult intermediates (PAIs). The results showed increased larval duration by 1.7 and 2 folds in 5 and 15% treatment, respectively. Fecundity of resultant adults was decreased by 1.2 and 1.3 in 5 and 15% treatment, respectively. Except approximate digestibility (AD) and consumption index (CI) all other feeding indices showed reduction. The feeding deterrence was prominent at 15% (87%) and 5% showing 48% deterrence. Our enzymatic and non-enzymatic assessments upon treatment showed reduction in key components, except detoxifying enzymes. However, the activity of an important enzyme involved in cuticle hardening and immunity called phenoloxidase was reduced. We also investigated the histology of midgut for further analysis and found drastic changes in main cellular elements. Immunological changes following treatment was noticeable in reduced Total Hemocyte Count but surprisingly increased Differential Hemocyte Count. However, the hemocytes structure was extremely damaged. The reduced number of eggs in treated but survived adults indicated reduced ovaries, with vacuolization both in trophocytes and oocytes. The key chemical compounds showed reductions particularly at 15%. The present results are concomitant with few earlier studies on this medicinal plant and deserve further studies particularly in deriving key chemicals that alter metamorphosis similar to insect growth regulators.

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Synergized toxicity exhibited by indigenous entomopathogenic fungal strains, plant extracts and synthetic insecticides against fall armyworm Spodoptera frugiperda (J.E. Smith) under laboratory and semi-field conditions

Ahmed,

Majeed,

Sayed

et al. 2023

J Plant Dis Prot

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Withania somnifera acts as a potential insect growth regulator in the polyphagous pest, Pericallia ricini

Cited by 3 publications

References 53 publications

A comparative bioefficacy of seed and root extracts of a medicinal plant, Withania somnifera when administered to prepupae of lepidopteran insects, Spodoptera litura (Lepidoptera: Noctuidae) and Pericallia ricini (Lepidoptera: Arctiidae)

A comparative bioefficacy of seed and root extracts of a medicinal plant, Withania somnifera when administered to prepupae of lepidopteran insects, Spodoptera litura (Lepidoptera: Noctuidae) and Pericallia ricini (Lepidoptera: Arctiidae)

Methanolic Extract of Winter Cherry Causes Morpho-Histological and Immunological Ailments in Mulberry Pyralid Glyphodes pyloalis

Synergized toxicity exhibited by indigenous entomopathogenic fungal strains, plant extracts and synthetic insecticides against fall armyworm Spodoptera frugiperda (J.E. Smith) under laboratory and semi-field conditions

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