DNA-tagged nano gold: A new tool for the control of the armyworm, Spodoptera litura Fab. (Lepidoptera: Noctuidae)

Chakravarthy, A. K.; Bhattacharyya, A.; Shashank, P. R.; Epidi, T. T.; Doddabasappa, B.; M, Swapan K.

doi:10.5897/ajb11.883

Cited by 34 publications

(9 citation statements)

References 36 publications

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“…This more or less confirms the present finding in which 8000 ppm recorded cent percent mortality in 2 nd instar larva at 72 HAT and 10000 ppm recorded cent per cent mortality in 3 rd instar larva at 96 HAT. Further, the present study is also comparable with Chakravarthy et al, (2012b) who tested the DNA tagged gold nanoparticles against S.litura at 200, 300, 400 and 500 ppm against second instar S. litura larvae exposed to each concentration of DNA tagged gold nanoparticles for 30 seconds causing 50 per cent larval mortality above 500 ppm. As the particle concentration and days after treatment increased, larval mortality also increased and is in full confirmation with the present finding though the nanoparticles used is Silver.…”

Section: Efficacy Of Soybean Seed Based Green Agnp's On Second and Third Instar Of Sliturasupporting

confidence: 84%

Synthesis of Green Silver Nanoparticles from Soybean Seed and its Bioefficacy on Spodoptera litura (F.)

Hosamani¹,

Patil²,

Benagi³

et al. 2019

Int.J.Curr.Microbiol.App.Sci

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Section: Efficacy Of Soybean Seed Based Green Agnp's On Second and Third Instar Of Sliturasupporting

confidence: 84%

Synthesis of Green Silver Nanoparticles from Soybean Seed and its Bioefficacy on Spodoptera litura (F.)

Hosamani¹,

Patil²,

Benagi³

et al. 2019

Int.J.Curr.Microbiol.App.Sci

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“…Goswami et al (2010) reported that nano-silica had insecticidal toxicity against some mosquito species that transmit human diseases. According to Chakravarthy et al (2012), DNA tagged gold nanoparticles are effective against Spodoptera litura, fall army warm. Zahir et al (2012) found in their experiment that silver nanoparticles (Ag NPs) were more effective to control Sitophilus oryzae, rice weevil than silver nitrate as well as aqueous extract of Euphorbia prostrata (a medicinal plant).…”

Section: Metalic Nano-particlesmentioning

confidence: 99%

Application of Nanotechnology in Insect Pest Management: A Review

2022

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Insect pests are one of the most concerned biotic obstacles in agriculture and humans are constantly in search of new strategies to control them. Chemical pesticides are extensively used for controlling insect pests which cause a lot of problem, such as pest resistance, elimination of natural enemies, environmental pollution, loss of biodiversity and human health hazards. As an alternative pest control strategy, the application of nanotechnology in insect pest management can be one of the most promising ways to overcome the problems related to the application of conventional chemical pesticide. According to various research findings, the nano based materials are described as very effective in insect pest management because they have larger surface area which ensures the contact of more volume of pesticides with the insect pests. They also provide selective, targeted and long term-controlled release of formulation of nanomaterial which is ecologically more viable. Moreover, the required amount of nano-insecticide is also very small for controlling insect and thus the pesticide load in the environment gets reduced. So, use of nanotechnology for insect pest management is considered as environmentally sustainable and a brilliant insect control strategy in green agriculture. SAARC J. Agric., 19(2): 1-11 (2021)

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“…Activated DNA-tagged gold nanoparticles were prepared following Chakravarthy et al (2012a) method. A 200, 300, 400, and 500 ppm were prepared and 10 μl of the suspension was mixed with chickpea ( Cicer aritinum)-based semisynthetic diet filled in 5 ml glass vials.…”

Section: Methodsmentioning

confidence: 99%

Nanomaterials: A Review of Their Action and Application in Pest Management and Evaluation of DNA-Tagged Particles

Chandrashekharaiah

Kandakoor

Gowda

et al. 2015

New Horizons in Insect Science: Towards Sustainable Pest Management

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Nanotechnology, a new field of research, prompted scientists to work on a wide range of aspects. Nanoparticles relating to pest management include formulation for herbicides and pesticides. The potential uses of nanotechnology in insect-pest management include the slow release, efficient dosage of insecticides, and provide diagnostic tools for early detection. Application of nanaoparticles also includes development of nanodispensers, nanogels, and nanocapsules. Effects of different inorganic nanoparticles against selected insects were evaluated under laboratory conditions. DNA-tagged nanogold caused 30.50, 57.50, and 75.00 % mortality on third, fourth, and fifth instar Spodoptera litura larvae, respectively. CdS nanoparticle caused highest S. litura larval mortality of 21.41-93.79 % at 150 and 2400 ppm, respectively. The nano-TiO2 showed maximum of 73.79 % S. litura larval mortality at 2400 ppm and the least was 18.50 % at 150 ppm. Nano-Ag caused maximum 56.89 % S. litura mortality at 2400 ppm followed by 46.89 and 33.44 % mortality at 1200 and 600 ppm, respectively. Nanoparticles coated with ecdysteroid analogues like tebufenozide and halofenozide were tested against Corcyra cephalonica. The treated eggs did not hatch due to arrest of embryonic development. Tebufenozide and halofenozide caused maximum larval mortality at 80 ppm. These two compounds at 80 ppm reduced fecundity and fertility in adults. Tebufenozide against Helicoverpa armigera larvae reduced the larval weight. Tebufenozide at 5.00 ppm was reduced the larval weight significantly (14.23 ± 1.43 and 112.35 ± 0.29, respectively) compared to control. Histopathological effects of tebufenozide at the light microscopic level showed vacuolation and inhibition of imaginal buds. At electron microscopic level,

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DNA-tagged nano gold: A new tool for the control of the armyworm, Spodoptera litura Fab. (Lepidoptera: Noctuidae)

Cited by 34 publications

References 36 publications

Synthesis of Green Silver Nanoparticles from Soybean Seed and its Bioefficacy on Spodoptera litura (F.)

Synthesis of Green Silver Nanoparticles from Soybean Seed and its Bioefficacy on Spodoptera litura (F.)

Application of Nanotechnology in Insect Pest Management: A Review

Nanomaterials: A Review of Their Action and Application in Pest Management and Evaluation of DNA-Tagged Particles

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