Nondetrimental impact of two concomitant entomopathogenic fungi on life history parameters of a generalist predator, Coccinella septempunctata (Coleoptera: Coccinellidae)

Rizwan, Muhammad; Atta, Bilal; Arshad, Muhammad; Khan, Rashad Rasool; Dageri, Asli; Rizwan, Misbah; Ullah, Muhammad Irfan

doi:10.1038/s41598-021-00037-8

Cited by 7 publications

(2 citation statements)

References 62 publications

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“…The other biopesticides were very much safe for the coccinellids population in the present study, which is also supported by several other previous studies. M. robertsii could be used as a potential biocontrol agent against insect pests, since it was found to be relatively safe for natural enemies [91][92][93]. Fatiha et al [94] reported that there was no effect of Verticillium lecanii on different biological parameters of the coccinellid predator (Serangium japonicum) of whiteflies.…”

Section: Discussionmentioning

confidence: 99%

Impact of Weather Variables on Radish Insect Pests in the Eastern Himalayas and Organic Management Strategies

Patra,

Rai,

Chakraborty

et al. 2024

Sustainability

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This study analyzed the impact of weather variables on insect pest dynamics and their diversity in the radish ecosystem through field experiments conducted for two years at a locality in the eastern Himalayas. The relationship with weather variables was studied with six different dates of sowing, and diversity was assessed using standard indices. Various organic management options were also evaluated. Results revealed that temperature had a positive impact, whereas relative humidity and rainfall negatively affected the population of insect pests. The radish ecosystem harbors diverse insect species, including natural enemies, with higher species richness (4.8–5.2) and lower year-to-year variability. Organic management strategies such as neem oil, Beauveria bassiana, and Metarhizium robertsii demonstrated good efficacy against flea beetles without compromising yield, resulting in 39.76%, 39.39%, and 38.71% pest reduction over control, respectively. These biopesticides also recorded less than half to one-fourth reduction in natural predators like coccinellids compared to cypermethrin, a chemical pesticide (74%). The study suggests that, under projected climate change with higher temperatures, pest populations are assumed to increase. Considering the insect diversity of the eastern Himalayas, organic management strategies will be an adaptation strategy to conserve biodiversity while ensuring environment-friendly pest management.

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Section: Discussionmentioning

confidence: 99%

Impact of Weather Variables on Radish Insect Pests in the Eastern Himalayas and Organic Management Strategies

Patra,

Rai,

Chakraborty

et al. 2024

Sustainability

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“…Entomopathogenic fungi, B. bassiana and M. anisopliae were obtained from AgriLife SOM Phytopharma (Hyderabad, Telangana. India) Limited in talc form [25]. The conidial spore suspension for both fungi was adjusted to 1 × 10 8 conidia mL −1 by using Neubauer hemocytometer [26].…”

Section: Entomopathogenic Fungimentioning

confidence: 99%

Endophytic Colonization by Beauveria bassiana and Metarhizium anisopliae in Maize Plants Affects the Fitness of Spodoptera frugiperda (Lepidoptera: Noctuidae)

et al. 2023

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The fall armyworm, Spodoptera frugiperda (Noctuidae; Lepidoptera), is a serious threat to food security as it has the potential to feed on over 353 plant species. To control this insect pest, endophytic colonization of entomopathogenic fungi (EPF) in plants is being considered as a safer and more effective alternative. This study evaluated the efficacy of two EPFs, Beauveria bassiana and Metarhizium anisopliae, for endophytic colonization using foliar spray and seed treatment methods on maize plants, and their impact on the survival, development, and fecundity of S. frugiperda. Both EPF effectively colonized the maize plants with foliar spray and seed treatment methods, resulting in 72–80% and 50–60% colonization rates, respectively, 14 days after inoculation. The EPF negatively impacted the development and fecundity of S. frugiperda. Larvae feeding on EPF-inoculated leaves had slower development (21.21 d for M. anisopliae and 20.64 d for B. bassiana) than the control treatment (20.27 d). The fecundity rate was also significantly reduced to 260.0–290.1 eggs/female with both EPF applications compared with the control treatment (435.6 eggs/female). Age-stage-specific parameters showed lower fecundity, life expectancy, and survival of S. frugiperda when they fed on both EPF-inoculated leaves compared with untreated leaves. Furthermore, both EPFs had a significant effect on population parameters such as intrinsic (r = 0.127 d−1 for B. bassiana, and r = 0.125 d−1 for M. anisopliae) and finite rate (λ = 1.135 d−1 for B. bassiana, and λ = 1.1333 d−1 for M. anisopliae) of S. frugiperda compared with the control (r = 0.133 d−1 and λ = 1.146 d−1). These findings suggest that EPF can be effectively used for the endophytic colonization of maize plants to control S. frugiperda. Therefore, these EPFs should be integrated into pest management programs for this pest.

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Life Cycle, Virulence, and Mechanism of Action of Entomopathogenic Fungi

Rana,

Tandon,

Kapoor

et al. 2024

Entomopathogenic Fungi

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Nondetrimental impact of two concomitant entomopathogenic fungi on life history parameters of a generalist predator, Coccinella septempunctata (Coleoptera: Coccinellidae)

Cited by 7 publications

References 62 publications

Impact of Weather Variables on Radish Insect Pests in the Eastern Himalayas and Organic Management Strategies

Impact of Weather Variables on Radish Insect Pests in the Eastern Himalayas and Organic Management Strategies

Endophytic Colonization by Beauveria bassiana and Metarhizium anisopliae in Maize Plants Affects the Fitness of Spodoptera frugiperda (Lepidoptera: Noctuidae)

Life Cycle, Virulence, and Mechanism of Action of Entomopathogenic Fungi

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