Resistance selection and biochemical characterization of spinosad resistance in Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)

Wei, Dong; Qiu, Xinghui; Ren, Xuexiang; Niu, Fang; Wang, Kaiyun

doi:10.1016/j.pestbp.2009.07.003

Cited by 81 publications

(56 citation statements)

References 23 publications

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“…Awan et al (2012) showed that piperonyl butoxide (a microsomal oxidase inhibitor) resulted in a significant synergism with spinosad, which indicates the important role of oxidases in T. castaneum resistance to the pesticide. Similar results were reported by Wang et al (2009) on H. armigera. They revealed that spinosad can increase the activity of p-nitroanisole-O-demethylase (ODM), which indicates the role of cytochrome P450 monooxygenase in the metabolism of spinosad.…”

Section: Discussionsupporting

confidence: 92%

“…armigera larvae treated with spinosad showed an insignificant increase in GST activity compared to the control (Wang et al 2009). The enzyme activity was increased significantly in S. littoralis larvae treated with LC 50 concentration of indoxacarb (Gamil et al 2011).…”

Section: Discussionmentioning

confidence: 91%

“…Glutathione-S-transferase (GST) activity was relatively decreased after treatment of the 5 th instar larvae of S. littoralis with spinetoram according to the results of Nedal and Hassan (2009). However, the exposure of Helicoverpa armigera (Hübner) larvae to LC 50 concentration of spinosad caused an insignificant increase in the GST activity (Wang et al 2009). Spinosad at LC 50 concentration is reported to cause a minor decrease in the α-esterase activity of a laboratory strain of S. littoralis larvae.…”

mentioning

confidence: 99%

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Sublethal effects of spinosad on some biochemical parameters of Xanthogaleruca luteola (Müller) (Coleoptera: Chrysomelidae)

et al. 2014

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Mohammadzadeh Tamam B., Ghadamyari M., Sahragard A., Karimi-Malati A. (2014): Sublethal effects of spinosad on some biochemical parameters of Xanthogaleruca luteola (Müller) (Coleoptera: Chrysomelidae). Plant Protect. Sci., 50: 199-205.The effect of spinosad on some biochemical characteristics of Xanthogaleruca luteola was investigated. LC 30 and LC 50 of spinosad for the third instar larvae were determined as 1.6 and 2.9 ppm, respectively. Biochemical tests were carried out on the 3 rd instar larvae treated with LC 30 and LC 50 of spinosad. The LC 30 concentration decreased carbohydrate and glycogen content and increased lipid content significantly. There was a significant decrease in carbohydrate, glycogen, and protein contents following the exposure to LC 50 concentration. Available energy of the larvae exposed to LC 30 of spinosad increased significantly, whereas it decreased significantly at LC 50 . However, the energy consumed was increased at both concentrations significantly. Cellular energy allocation of larvae treated with LC 50 concentrations of spinosad decreased significantly. Glutathione-S-transferase and esterase activities were increased significantly at LC 50 . However, lipase activity was decreased at both concentrations.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionmentioning

confidence: 91%

mentioning

confidence: 99%

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Sublethal effects of spinosad on some biochemical parameters of Xanthogaleruca luteola (Müller) (Coleoptera: Chrysomelidae)

et al. 2014

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“…Over the years, the extensive use of chemical insecticides has led to the development of insecticide resistance in lepidopterans which not only increased insecticide cost due to frequent and recurrent applications with higher quanities, but has also contributed significantly to the environmental pollution. H. armigera has been shown to develop resistance against various conventional insecticides; organophosphates (Gunning et al, 1998), spinosad, carbamates and synthetic pyrethroids (Wang et al, 2009;Avilla and González-Zamora, 2010;Karaagaç et al, 2013). Fourteen populations from Northern China have shown to possess 43-fold to 830-fold resistance to fenvalerate (Yang et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Emamectin benzoate: Potential larvicide and antifeedant agent against cotton Boll worm Helicoverpa armigera (Lepidoptera: Noctuidae)

Dagar¹,

Kumar²

2018

JANS

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Helicoverpa armigera, a global polyphagous pest, attacks a wide variety of crops causing huge agricultural loss. Overuse of conventional insecticides for Helicoverpa control has made Helicoverpa resistant to insecticides leading to more severe attacks on crops diverting interest of researchers to explore alternate control agents. Present study investigates the cidal and antifeedant potential of Emamectin benzoate; a semi-synthetic avermectin derived from the soil actinomycetes, Streptomyces avermitilis; against early IV instars of H. armigera. Larvae were fed on the castor leaf discs (3.5 cm diameter) dipped in different concentrations of Emamectin benzoate; ranging from 0.05 µg/mL-1.5 µg/mL. The leaf disc areas were measured pre-and post-larval feeding to estimate the antifeedant potential of compound. The effect of feeding was also assessed on the survival of larvae by scoring the larval mortality till 96 h. Our investigations showed significant larvicidal potential of Emamectin benzoate against H. armigera revealing respective LC 50 values of 0.26 µg/mL, 0.095 µg/mL, 0.043 µg/mL and 0.027 µg/mL after 24, 48, 72 and 96 h feeding. Furthermore, a remarkable decrease of 93.59% was observed in larval feeding potential indicating significant antifeedant efficacy of Emamectin benzoate. A strong correlation between antifeedant index and the Emamectin benzoate concentration resulted in 1.48-fold index reduction with a decrease in concentration. Our results demonstrated efficacy of Emamectin benzoate as an effectual larvicidal and antifeedant agent against H. armigera. Employing selective insecticide can tackle issues of pest resistance and pest resurgence after ascertaining in the fields as Helicoverpa control agent and negating impact on non-target organisms.

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“…However, low levels of spinosad resistance have been recorded in H. armigera in Pakistan (Ahmad et al 2003), India (Kranthi et al 2000) and Australia (Gunning and Balfe 2002). In addition, successful selections of spinosad-resistant strains under laboratory conditions in target pests have provided theoretical evidence that insects have the potential to evolve resistance to spinosad (Shono and Scott 2003;Wang et al 2006;Wang et al 2009b;Young et al 2003). The probability of rapid resistance development will increase dramatically with increased persistence and coverage of spinosad under field conditions.…”

Section: Introductionmentioning

confidence: 99%

Reduced fitness associated with spinosad resistance in Helicoverpa armigera

et al. 2010

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The fitness cost of spinosad resistance was investigated in the cotton bollworm, Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae). Laboratory experiments were conducted to compare relative fitness of H. armigera between the spinosad-susceptible and -resistant strains. During the experiments, the average development periods of the resistant strain were lengthened by 4-5 days, reflected in a prolongation of egg, larval and pupal periods. Furthermore, pupal survival, pupal weight, the mean life span of emerged adults, eggs laid and hatched decreased greatly in the resistant strain in comparison with the susceptible strain. Other life-cycle parameters such as larval survival, larval wet weights, prepupal periods, pupation ratio, and sex ratio did not change significantly. As a result, both net replacement rate (R 0 ) and intrinsic rate of increase (r m ) were reduced for the resistant strain. Our results clearly indicated that relative fitness of resistant individuals was reduced in the absence of spinosad. Rational measures including pesticide rotations should be expected to delay development of resistance to spinosad in H. armigera field populations from China.

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Resistance selection and biochemical characterization of spinosad resistance in Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae)

Cited by 81 publications

References 23 publications

Sublethal effects of spinosad on some biochemical parameters of Xanthogaleruca luteola (Müller) (Coleoptera: Chrysomelidae)

Sublethal effects of spinosad on some biochemical parameters of Xanthogaleruca luteola (Müller) (Coleoptera: Chrysomelidae)

Emamectin benzoate: Potential larvicide and antifeedant agent against cotton Boll worm Helicoverpa armigera (Lepidoptera: Noctuidae)

Reduced fitness associated with spinosad resistance in Helicoverpa armigera

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