Topical, residual and ovicidal contact toxicity of three reduced‐risk insecticides against the European corn borer, <i>Ostrinia nubilalis</i> (Lepidoptera: Crambidae), on potato

Boiteau, Gilles; Noronha, Christine

doi:10.1002/ps.1454

Cited by 24 publications

(24 citation statements)

References 21 publications

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“…This suggests either that there was surface area of cherries not covered with dried residues or that, as the results suggest, flies need to contact dried zeta-cypermethrin residues for up to 20-25 min before contacting residues again on cherries in order for flies to be killed quickly enough to prevent oviposition. Direct sprays also killed flies the quickest, consistent with studies in other insects comparing topical versus residual toxicities (Marçon et al 1997;Boiteau and Noronha 2007;Dagli and Bahsi 2009), affording 100% protection of cherries. The 2 ml sprays resulted in higher earlier mortality than 1 ml sprays, presumably because of greater, more uniform, insecticide dosages.…”

Section: Discussionsupporting

confidence: 69%

Behavioral responses, rate of mortality, and oviposition of western cherry fruit fly exposed to malathion, zeta-cypermethrin, and spinetoram

Yee

Alston

2011

J Pest Sci

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Western cherry fruit fly, Rhagoletis indifferens Curran (Diptera: Tephritidae), is a pest of sweet and tart cherry, Prunus avium L. (L.) and P. cerasus L., respectively, in western North America. This fly is commonly controlled with spinosad bait sprays. Spotted wing drosophila, Drosophila suzukii Matsumura, is potentially a new pest of cherries in this region that could be a threat to orchards at the same time as R. indifferens. Drosophila suzukii apparently is not controlled using spinosad bait sprays, but may potentially be controlled using malathion, zeta-cypermethrin, and spinetoram. However, how well these last three materials protect fruit against reproductively mature R. indifferens is not known. In laboratory observations, R. indifferens spent the least amount of time on cherries treated with zeta-cypermethrin, possibly because of its toxicity and irritant effects. In laboratory experiments, zeta-cypermethrin killed flies more quickly than malathion and spinetoram, causing up to 100% mortality 2 h after exposure. Zeta-cypermethrin prevented all oviposition when flies walked on dried residues for 20-25 min or were directly sprayed, and then exposed to cherries with dried residues, simulating exposure of mature female flies in a treated orchard. Malathion and spinetoram reduced oviposition compared with controls, but did not prevent it, when flies contacted residues or were directly sprayed at a high volume. Results suggest zeta-cypermethrin is the most effective of the three materials at protecting cherries against mature R. indifferens and could be used in an integrated control program for it and D. suzukii.

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Section: Discussionsupporting

confidence: 69%

Behavioral responses, rate of mortality, and oviposition of western cherry fruit fly exposed to malathion, zeta-cypermethrin, and spinetoram

Yee

Alston

2011

J Pest Sci

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“…This is supported by Boiteau and Noronha (2007), who treated the European corn borer, Ostrinia nubilalis (Lepidoptera: Crambidae) with spinosad. In the present study, although lufenuron had an ovicidal effect on P. xylostella, it was not as good as the effect of hexaflumuron, another IGR.…”

Section: Discussionmentioning

confidence: 76%

Ovicidal effect of some insecticides on the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae)

Mahmoudvand

Garjan

Abbasipour

2011

Chilean J. Agric. Res.

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The diamondback moth, Plutella xylostella (Lepidoptera: Yponomeutidae), is a serious threat to Brassica vegetables in Iran, including Tehran province. The ovicidal effects of different classes of insecticides on P. xylostella were investigated, using three fixed doses (based on commercial formulations). At the lowest concentration (500 mg L -1 ), the mortality effect of hexaflumuron and pyridalyl was higher than the other insecticides examined. Fipronil, hexaflumuron and spinosad and pyridalyl, however, showed high toxic effects at the median dose (1000 mg L -1 ). On the other hand, at high concentration (2000 mg L -1 ), all insecticides except lufenuron and indoxacarb (EC formulation) caused more than 85% mortality. Overall, these findings indicate that hexaflumuron, spinosad and fipronil, with low active ingredients and high mortality, could be the best choices for controlling the P. xylostella in the egg stage.

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“…Similarly, another chitin synthesis inhibitor diflubenzuron was highly toxic to the recently laid eggs of several insect species, but had little or no effect on more mature eggs (Grosscurt 1978;Assal et al 1983;Chockalingam and Noorjahan 1984;Charmillot et al 2001). In contrast, novaluron significantly reduced viability of the European corn borer, Ostrinia nubilalis (Hubner) eggs that were close to hatching (Boiteau and Noronha 2007), but had no effect on the 0-24 h old eggs of the red flour beetle, Tribolium castaneum (Herbst) (Kostyukovsky and Trostanetsky 2006).…”

Section: Discussionmentioning

confidence: 91%

“…Ovicidal properties are rather common for insect growth regulators (Asai et al 1983;Biddinger and Hull 1995;Trisyono and Chippendale 1997;Bortolotti et al 2000;Charmillot et al 2001;Abo-Elghar et al 2004), including novaluron (Cutler et al 2005(Cutler et al , 2006Boiteau and Noronha 2007;Alyokhin et al 2008). However, an earlier study reported that only half of the Colorado potato beetle eggs treated with novaluron failed to hatch (Alyokhin et al 2008).…”

Section: Introductionmentioning

confidence: 93%

Maturity-Dependent Mortality of Colorado Potato Beetle Eggs Treated with Novaluron

Alyokhin

Choban²

2010

Am. J. Pot Res

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Novaluron is a chitin synthesis inhibitor (a benzoylphenyl urea) that kills larval stages and causes reversible cessation of laying viable eggs in adults of the Colorado potato beetle, Leptinotarsa decemlineata (Say). Previous studies also suggest that it has ovicidal properties, but not on all tested egg masses. We investigated if egg maturity at the time of exposure affects its susceptibility to novaluron. Novaluron application significantly reduced the hatch of eggs that were 0-24 h old at the moment of treatment, but had no effect on the eggs that were 96-120 h old. Novaluron also interfered with the development of the hatched larvae regardless of the egg age at the time of treatment, probably due to chorion feeding by neonates. Ovicidal properties of novaluron may contribute to Colorado potato beetle control, but their effect will be limited to newly laid eggs. If that window of susceptibility is missed, hatching larvae will be exposed to a fairly old novaluron residue that might be weathered down to sublethal levels. This supports the current recommendations to apply novaluron as a larvicide.Resumen Novaluron es un inhibidor de la síntesis de quitina (un benzoylphenyl urea) que mata estados larvales y causa cese reversible de la deposición de huevos viables en adultos del escarabajo de Colorado, Leptinotarsa decemlineata (Say). Estudios previos también sugieren que tiene propiedades ovicidas, pero no en todas las masas de huevos probadas. Investigamos si la madurez del huevo al tiempo de la exposición afecta su susceptibilidad al novaluron. Su aplicación redujo significativamente la eclosión de los huevos de 0 a 24 hs de edad al momento del tratamiento, pero no tuvo efecto en los de 96 a 120 hs de edad. Novaluron también interfirió con el desarrollo de la larva emergida, independientemente de la edad del huevo al momento del tratamiento, probablemente debido a la ingestión de la cubierta externa del huevo por los neonatos. Las propiedades ovicidas de novaluron pueden contribuir al control del escarabajo de Colorado, pero su efecto estará limitado a la oviposición nueva. Si se pierde esa ventana de susceptibilidad, la larva resultante estará expuesta a un residuo de novaluron bastante viejo que pudiera ser disminuido a niveles subletales por el ambiente. Esto respalda las recomendaciones actuales de aplicar novaluron como un larvicida.

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Topical, residual and ovicidal contact toxicity of three reduced‐risk insecticides against the European corn borer, Ostrinia nubilalis (Lepidoptera: Crambidae), on potato

Abstract: Spinosad, indoxacarb and novaluron have ovicidal properties, which could enhance O. nubilalis management programs. However, the contact residual toxicity is limited in duration and would likely only play a minor role in O. nubilalis control.

Cited by 24 publications

References 21 publications

Behavioral responses, rate of mortality, and oviposition of western cherry fruit fly exposed to malathion, zeta-cypermethrin, and spinetoram

Behavioral responses, rate of mortality, and oviposition of western cherry fruit fly exposed to malathion, zeta-cypermethrin, and spinetoram

Ovicidal effect of some insecticides on the diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae)

Maturity-Dependent Mortality of Colorado Potato Beetle Eggs Treated with Novaluron

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