Relationship between dose of emamectin benzoate and molting response of ovigerous American lobsters (Homarus americanus)

Waddy, S. L.; Merritt, V.; Hamilton-Gibson, M.N.; Aiken, D. E.; Burridge, L.E.

doi:10.1016/j.ecoenv.2006.05.002

Cited by 25 publications

(18 citation statements)

References 13 publications

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“…Cypermethrin caused 12% mortality in S. carpocapsae in a study by Negrisoli Jr et al (2010), whereas in our study mortality of S. carpocapsae caused by cypermethrin remained below 1%. Emamectin is fermented from Streptomyces avermitilis and is generally formulated as emamectin benzoate (Waddy et al 2007). According to Fetoh et al (2009) emamectin benzoate had no adverse effects on S. carpocapsae and a mixture of S. carpocapsae with formulated emamectin benzoate significantly increased mortality to greasy cutworm (Agrotis ipsilon) as compared with S. carpocapsae alone.…”

Section: Discussionmentioning

confidence: 99%

Effects of selected insecticides on osmotically treated entomopathogenic nematodes

Yan

Moens

Han³

et al. 2012

J Plant Dis Prot

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Combining environmentally friendly insecticides with entomopathogenic nematodes may constitute an effective alternative to conventional chemical control of many insect pests. The objective of this laboratory study was to evaluate the effects of selected insecticides which are commonly used for pest control in vegetables in China on osmotically treated and untreated infective juveniles of Steinernema carpocapsae strain All. The insecticides azadirachtin, chlorpyrifos, cypermethrin, fipronil, imidacloprid, malathion, thiamethoxam and chlorantraniliprole-thiamethoxam had no adverse effects on nematode survival and infectivity. In contrast, bisultap, emamectin benzoate, phoxim and rotenone proved harmful to S. carpocapsae All mainly by reducing infectivity of the infective juveniles to larvae of the greater wax moth, Galleria mellonella. Osmotic induction is a promising way to induce entomopathogenic nematodes into partial anhydrobiosis and thus increase environmental stress tolerance of the nematodes as well as their shelf life after production. The present results showed that osmotic treatment did not adversely affect fitness of the nematode in terms of its susceptibility to insecticides and even increased its tolerance to chlorpyrifos and rotenone. The results of this laboratory study indicate that several of the tested insecticides can be safely combined with S. carpocapsae All within an integrated pest management approach.

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Section: Discussionmentioning

confidence: 99%

Effects of selected insecticides on osmotically treated entomopathogenic nematodes

Yan

Moens

Han³

et al. 2012

J Plant Dis Prot

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“…Mortality related to molt is uncommon in ovigerous lobsters exposed only once or twice to emamectin benzoate (Fig. 1C and Waddy et al 2007a), but reduced molting success has been reported in insects and copepods exposed to avermectins (Strong & Brown 1987, Willis & Ling 2003.…”

Section: Discussionmentioning

confidence: 99%

“…Waddy et al 2007a). As noted in a review by Greim & Snyder (2008), the NOEL can only be determined for chemicals that produce reversible effects.…”

Section: Discussionmentioning

confidence: 99%

“…Secondary effects on growth, development, and reproduction have been reported in insects (Glancey et al 1982, Antunes et al 2005. Ovigerous American lobsters Homarus americanus that ingest high doses of emamectin benzoate enter premolt (molt stage D 1 ; setogenic stage 3.0) prematurely and lose their attached eggs with the cast shell (Waddy et al 2002(Waddy et al , 2007a.…”

Section: Introductionmentioning

confidence: 99%

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Effect of emamectin benzoate on the molt cycle of ovigerous American lobsters Homarus americanus is influenced by the dosing regimen

Waddy¹,

Merritt²,

Hamilton-Gibson³

et al. 2010

Aquat. Biol.

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“…Therefore, the potential exposure and bioavailability to sediment-associated organisms, such as benthic invertebrates, may lead to deleterious effects (Ernst et al 2001; Waddy et al 2007; Crane et al 2011). Likewise, the low capacity of invertebrates to detoxify or purify the quick action of compounds, such as pyrethroids on nerve cells, compared with other organisms (e.g., mammals and birds), allows to infer the selective toxicity to nontarget organisms, such as benthic crustaceans, that vulnerable to low concentrations of these pesticides (Pérez-Fernández et al 2010).…”

mentioning

confidence: 99%

Toxic Effects of Antiparasitic Pesticides Used by the Salmon Industry in the Marine Amphipod Monocorophium insidiosum

Tucca

Díaz-Jaramillo

Cruz

et al. 2014

Arch Environ Contam Toxicol

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The use of antiparasitic pesticides (APs) has been widely required by the salmon industry to treat diseases. The direct emission of chemicals in the seawater has produced uncertainty about the potential effects on nontarget organisms, such as crustaceans. The aim of this study was to assess the toxicity of three APs used by the salmon farm industry, such as emamectin benzoate (EB), cypermethrin (CP), and deltamethrin (DE), in the amphipod Monocorophium insidiosum during 10 days through whole-sediment bioassay tests. Lethal concentration by 50 % (LC50–10d) and biochemical responses, such as glutathione S-transferase (GST) and thiobarbituric acid reactive substances (TBARS), were measured as exposure and effects end points, respectively. Acute assays for DE (7.8 μg kg−1, confidence interval, CI95% 5–11) and CP (57 μg kg−1, CI95% 41–77) showed more mortality than EB (890 μg kg−1, CI95% 672–1,171). In this study, it was possible to observe sublethal responses in amphipods after 2 days of exposure to APs. Significant induction in GST and TBARS (p < 0.05) were measured for CP and EB. Lower DE concentrations showed no significant biochemical responses. M. insidiosum was sensitive to AP concentrations at μg kg−1 in sediments. This information would allow considering the possible consequences of detected concentrations for APs in areas with intensive salmon farming activity.

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Relationship between dose of emamectin benzoate and molting response of ovigerous American lobsters (Homarus americanus)

Cited by 25 publications

References 13 publications

Effects of selected insecticides on osmotically treated entomopathogenic nematodes

Effects of selected insecticides on osmotically treated entomopathogenic nematodes

Effect of emamectin benzoate on the molt cycle of ovigerous American lobsters Homarus americanus is influenced by the dosing regimen

Toxic Effects of Antiparasitic Pesticides Used by the Salmon Industry in the Marine Amphipod Monocorophium insidiosum

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