Molecular Characterization and Genetic Interventions in an Invasive Spiralling Whitefly Aleurodicus dispersus Russell

Boopathi, T.; Gupta, Kavita; Singh, Surender; Subramanian, S.; Dubey, Sonali

doi:10.1007/978-981-19-0264-2_21

Cited by 2 publications

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“…C. sexmaculata adults had a higher consumption rate than larvae fed on A. craccivora 30 . The release of coccinellid adults (@ 10 adults/tree or 1500 adults/ha) could suppress the populations of sucking pests 31 . Thus, adults have the potential to be used to suppress sucking pests in biocontrol programs.…”

Section: Discussionmentioning

confidence: 99%

“…The daily consumption rates were calculated using the CONSUME-MSChart computer program 46 . It calculated the age-specific consumption rate (k x ), the age-stage-specific consumption (C xj ), the age-specific net consumption rate (q x ), the net consumption rate (C 0 ), the cumulative consumption rate (C y ) and the transformation rate (Q p ) 31,47 .…”

Section: Methodsmentioning

confidence: 99%

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Harmonia sedecimnotata (F.): Predatory potential, biology, life table, molecular characterization, and field evaluation against Aphis gossypii Glover

Boopathi

Singh

Dutta

et al. 2020

Sci Rep

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The ladybird beetle, Harmonia sedecimnotata (F.) was studied in biology, life table, consumption rates, molecular characterization, and field evaluation. The net reproductive rate (R0), based on the age-stage and two-sex life table, was 43.2 eggs/individual. The female adults lived longer (68.1 d) than the male adults (62.9 d). The rate of consumption increased with progress in each stage of development. Compared to the other larval stages of the predator, the fourth stadium consumed most quantities of Aphis gossypii Glover nymphs (Hemiptera: Aphididae) (200.4). Both female (2214.6) and male (1792.4) consumed more prey (nymphs) than larvae. The net rate of consumption was 1458.92 nymphs of melon aphids. There was no variation in the sequences of the two nucleotides out of 583 bp, H sedecimnotata China (EU392410) and India (MG720024). Our investigations demonstrated that inoculative release of 30 or 40 or 50 adults per 100 m2 attained high reduction of aphids (>90%). Thus, it may be recommended the release rate of 40 adults per 100 m2 to suppress the eggplant aphid population. H. sedecimnotata is therefore one of the most promising biological control agents for cotton aphids that can be achieved for instant control through an inoculative release of adults.

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Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Harmonia sedecimnotata (F.): Predatory potential, biology, life table, molecular characterization, and field evaluation against Aphis gossypii Glover

Boopathi

Singh

Dutta

et al. 2020

Sci Rep

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Ovicidal and insecticidal effects of microbial pathogens against invasive Coconut Rugose spiralling whitefly (RSW), Aleurodicus rugioperculatus Martin and impact on their chrysopid predator Mallada boninensis (Okamoto)

Elango

Kumar

Dhanasekar

2022

Egypt J Biol Pest Control

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Background The Rugose spiraling whitefly (RSW), Aleurodicus rugioperculatus Martin (Hemiptera: Aleyrodidae), has been reported as an invasive pest of coconut in different parts of peninsular India during 2016. It mainly caused damage to coconut palms, bananas, custard apples and other broad-leaved plants as hosts. Presently it is spread all over India and the coconut growing farmers are facing hard ships due to this infestation of RSW in coconut ecosystem. Still now the management of this invasive pest is fully based on the biological control, particularly with predators and parasitoids and the study on the microbial control of RSW was minimum. Hence, an attempt was made to study the ovicidal and insecticidal effects of microbial pathogens, viz.Isaria fumosorosea Wize, Beauveria bassiana (Balsamo) Vuillemi, Metarhizium anisopliae (Metschnikoff), Lecanicillium lecanii (Zimmerm.) with a spore load of 1 × 108 cfu against different life stages of RSW and their chrysopid predator, Mallada boninensis (Okamoto)(Neuroptera: Chrysopidae) under laboratory as well as field conditions. Results The results revealed that under laboratory conditions, I. fumosorosea caused 34.54% egg mortality, 37.39% nymphal mortality and 48.30% adult mortality, followed by L. lecanii (24.54, 30.76 and 28.01%) and M. anisopliae (20.56, 32.51 and 42.92%) for egg, nymphal and adult mortality, respectively. Under field conditions, I. fumosorosea caused (29.60%), followed by M. anisopliae (24.30%) and B. bassiana (21.00%) nymphal mortality, respectively, at 15 days after spray, also, it was found effective in reducing the RSW population on coconut. The impact of fungal entomopathogens against the predator revealed that I. fumosorosea treated eggs of M. boninensis recorded maximum 90.33% grub emergence than other treatments. Conclusion The present study concludes that the RSW can be controlled effectively by I. fumosorosea along with the chrysopid predator, M. boninensis under field conditions as they showed maximum ovicidal and insecticidal actions against different life stages of RSW and safer to the major predator of RSW and fall under harmless category as per the classification of IOBC.

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Molecular Characterization and Genetic Interventions in an Invasive Spiralling Whitefly Aleurodicus dispersus Russell

Cited by 2 publications

References 28 publications

Harmonia sedecimnotata (F.): Predatory potential, biology, life table, molecular characterization, and field evaluation against Aphis gossypii Glover

Harmonia sedecimnotata (F.): Predatory potential, biology, life table, molecular characterization, and field evaluation against Aphis gossypii Glover

Ovicidal and insecticidal effects of microbial pathogens against invasive Coconut Rugose spiralling whitefly (RSW), Aleurodicus rugioperculatus Martin and impact on their chrysopid predator Mallada boninensis (Okamoto)

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