Biochemical Mechanisms of Insecticidal Activities

Etō, Morifusa

doi:10.1007/978-3-642-46674-8_2

Cited by 33 publications

(28 citation statements)

References 158 publications

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“…Any exogenous substance that acts as endocrine disruptor produces various deformities in development and is always lethal as seen in the present study. Many previous studies have shown the formation of mosaics as well as deformed adults as a result of IGR/JHA treatments (Koehler and Patterson 1991;Eto 1990;Koçak and Kilinçer 1997;Richardson and Lagos 2007).…”

Section: Discussionmentioning

confidence: 98%

Effects of juvenoid Pyriproxyfen on reproduction and F1 progeny in myiasis causing flesh fly Sarcophaga ruficornis L. (Sarcophagidae: Diptera)

Singh

Kumar

2015

Parasitol Res

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Freshly emerged virgin female Sarcophaga ruficornis were topically treated with different doses of pyriproxyfen to test the efficacy on reproduction and subsequent F1 progeny. The results included mortality of the treated adults, significant reduction in fecundity, more than 90% inhibition in larvae production, mortality in F1 generation during larval instars, reduction in pupariation, and adult emergence and production of deformed adults. There was a dose-dependent response showing high degree of correlation in the doses administered and deformities observed. The effects in F1 generation show that an intraovarial transfer of pyriproxyfen was responsible for the various deformations observed, showing the potency of juvenoid pyriproxyfen for longer durations across generations. This is the first study that clearly demonstrates the efficacy of pyriproxyfen against reproduction in S. ruficornis and its potential for the management of this notorious pest of medico-veterinary importance.

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Section: Discussionmentioning

confidence: 98%

Effects of juvenoid Pyriproxyfen on reproduction and F1 progeny in myiasis causing flesh fly Sarcophaga ruficornis L. (Sarcophagidae: Diptera)

Singh

Kumar

2015

Parasitol Res

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“…Similar results have also been observed when larvae of S. littoralis are treated with extracts of Commiphora molmol (Shonouda et al 2000) or S. frugiperda larvae are treated with Calceolaria talcana extracts (Munoz et al 2013). It appears that the plant extracts are mimicking the action of JH which suppresses pupation (Eto 1990) and may also block the synthesis/release of eclosion hormone since phytochemicals are known to suppress the synthesis of ecdysteroids or eclosion hormone (Rembold et al 1982).…”

Section: Discussionmentioning

confidence: 99%

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

Gaur¹,

Kumar²

2018

Journal of Plant Protection Research

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Both seed and root extracts of the medicinal plant, Ashwagandha, Withania somnifera exhibit insect growth regulatory activity against the polyphagous pest, Pericallia ricini. Topical administration of W. somnifera seed and root extracts to last instar larvae of P. ricini disrupted moulting and metamorphosis, leading to a number of developmental abnormalities such as delay in larval-pupal and pupal-adult ecdysis, formation of larval-pupal, pupal--adult and larval-pupal-adult mosaics/chimeras, ecdysial failure, suppression of pupation and adult emergence and formation of abnormal pupae and adultoids. The treatment with seed extracts was more severe than that of root extracts as it completely suppressed the pupation and adult emergence. The results clearly suggest that the medicinal plant, W. somnifera acts as a potential insect growth regulatory (IGR) disrupting the moulting and metamorphosis as a consequence of interference with the endocrine system.

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“…Se as diferenças na tolerância das vespas fossem causadas por alterações no alvo de ação dos compostos, esperava-se que estas apresentassem o mesmo nível de tolerância a inseticidas de mesmo grupo, os quais possuem o mesmo alvo de ação. Porém, verificou-se maior tolerância das vespas a ethion do que a monocrotofós, embora estes organofosforados apresentem o mesmo alvo de ação a acetilcolinesterase (OBrien, 1976;Eto, 1990).…”

Section: Resultsunclassified

Seletividade fisiológica de inseticidas a vespidae predadores do bicho-mineiro-do-cafeeiro

Gusmão

Picanço

Gonring

et al. 2000

Pesq. agropec. bras.

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RESUMO -Estudou-se, em laboratório, a seletividade dos inseticidas clorpirifós, deltametrina, dimetoato, ethion, monocrotofós e permetrina às vespas predadoras Apoica pallens Fab., Brachygastra lecheguana Latreille e Polistes versicolor versicolor Olivier (Hymenoptera: Vespidae) em concentrações que correspondem a 50% e 100% da dosagem recomendada para o controle do bicho-mineiro-docafeeiro, Perileucoptera coffeella Guérin-Meneville (Lepidoptera: Lyonetiidae). Deltametrina foi seletivo em favor de P. versicolor versicolor e A. pallens. O ethion foi medianamente seletivo a A. pallens e P. versicolor versicolor, e seletivo em favor de B. lecheguana. Os demais inseticidas não foram seletivos às vespas predadoras. A ordem crescente de tolerância das vespas a deltametrina foi: P. versicolor versicolor > A. pallens > B. lecheguana. Para o ethion esta ordem foi: B. lecheguana > P. versicolor versicolor > A. pallens. O clorpirifós, deltametrina, dimetoato, monocrotofós e permetrina apresentaram semelhante toxicidade às vespas nas duas dosagens utilizadas. O ethion, por sua vez, reduziu seu impacto sobre A. pallens e P. versicolor versicolor quando aplicado em subdosagem.Termos para indexação: Apoica pallens, Brachygastra lecheguana, Perileucoptera coffeella, Polistes versicolor versicolor, vespas. PHYSIOLOGIC SELECTIVITY OF INSETICIDES TO WASPS PREDATORS OF THE COFFEE LEAFMINERABSTRACT -The selectivity of the insecticides chlorpyrifos, deltamethrin, dimethoate, ethion, monocrothophos and permethrin to the predatory wasps Apoica pallens Fab., Brachygastra lecheguana Latreille and Polistes versicolor versicolor Olivier (Hymenoptera: Vespidae) was studied, in laboratory, using 50% and 100% of the dosages used for controlling the coffee leafminer, Perileucoptera coffeella Guérin-Meneville (Lepidoptera: Lyonetiidae). Deltamethrin was selective in favour of P. versicolor versicolor and A. pallens. Ethion showed median selectivity in favour of P. versicolor versicolor and A. pallens and good selectivity to B. lecheguana. The other insecticides were not selective in favour of the predatory wasps. The order of tolerance to deltamethrin was: P. versicolor versicolor > A. pallens > B. lecheguana. To ethion, the order was: B. lecheguana > P. versicolor versicolor > A. pallens. Chlorpyrifos, deltamethrin, dimethoate, monocrothophos and permethrin presented similar toxicity to the wasps in both dosages used. On the other hand ethion reduced its impact on A. pallens and P. versicolor versicolor when applied in subdosages.Index terms: Apoica pallens, Brachygastra lecheguana, Perileucoptera coffeella, Polistes versicolor versicolor, wasps. Lyonetiidae), constitui-se praga-chave do cafeeiro no Brasil, ocasionando grandes perdas à cultura, em virtude da redução da área fotossintética, que podem ocasionar prejuízos de até 80% na produção de plantas (Thomaziello, 1987).O controle químico do bicho-mineiro é empregado pela grande maioria dos cafeicultores; e o clorpirifós, deltametrina, dimetoato, ethion, monocrotofós e permetrina estão entre...

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Biochemical Mechanisms of Insecticidal Activities

Cited by 33 publications

References 158 publications

Effects of juvenoid Pyriproxyfen on reproduction and F1 progeny in myiasis causing flesh fly Sarcophaga ruficornis L. (Sarcophagidae: Diptera)

Effects of juvenoid Pyriproxyfen on reproduction and F1 progeny in myiasis causing flesh fly Sarcophaga ruficornis L. (Sarcophagidae: Diptera)

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

Seletividade fisiológica de inseticidas a vespidae predadores do bicho-mineiro-do-cafeeiro

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