Toxicity of the insect growth regulator novaluron to the non-target predatory bug Podisus maculiventris (Heteroptera: Pentatomidae)

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Toxicity of the insect growth regulator novaluron to the non-target predatory bug Podisus maculiventris (Heteroptera: Pentatomidae)

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dc.contributor.author Cutler, G.C.
dc.contributor.author Scott-Dupree, C.D.
dc.contributor.author Tolman, J.H.
dc.contributor.author Harris, C.R.
dc.date.accessioned 2011-04-13T22:26:34Z
dc.date.available 2011-04-13T22:26:34Z
dc.date.issued 2006
dc.identifier.citation Cutler, G.C., Scott-Dupree, C.D., Tolman, J.H., Harris, C.R. "Toxicity of the insect growth regulator novaluron to the non-target predatory bug Podisus maculiventris (Heteroptera: Pentatomidae)." Biological Control 38.2 (2006): 196-204
dc.identifier.uri http://hdl.handle.net/10214/2624
dc.description.abstract Novaluron is a novel insect growth regulator that exhibits potent insecticidal activity against the Colorado potato beetle, Leptinotarsa decemlineata (Say). The predatory bug Podisus maculiventris (Say) is a natural enemy of the potato beetle found throughout North America, and is widely available commercially. Anticipating the use of novaluron in L. decemlineata management, we conducted laboratory experiments to determine the susceptibility of P. maculiventris to novaluron. Although there was a 2- to 3-day delay in the onset of toxic effects, second instars were susceptible by direct contact and through exposure to potato foliage treated with field rates. When P. maculiventris eggs were dipped in field rate novaluron solutions, there was no significant effect on percent hatch, but there was subsequently a sharp decrease in the ability of hatched nymphs to molt. Similarly, fifth instars actively preyed on L. decemlineata larvae dipped in field rate novaluron solutions, but were thereafter unable to molt into adults. Female P. maculiventris adults caged with L. decemlineata larvae and novaluron treated potato plants had reduced longevity compared to those caged with untreated potato plants. Further, oviposition and hatch of eggs from adults on novaluron treated plants was significantly reduced. Although novaluron has demonstrated selectivity in favor of beneficial insects in other studies, these results suggest that P. maculiventris would be adversely affected.
dc.language.iso en en_US
dc.publisher Biological Control en_US
dc.subject Leptinotarsa decemlineata en_US
dc.subject Podisus maculiventris en_US
dc.subject Novaluron en_US
dc.subject Insect growth regulator en_US
dc.subject Non-target toxicity en_US
dc.subject Sublethal toxicity en_US
dc.subject Biological control en_US
dc.title Toxicity of the insect growth regulator novaluron to the non-target predatory bug Podisus maculiventris (Heteroptera: Pentatomidae) en_US
dc.type Article en_US


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