Virulence of Beauveria bassiana and Metarhizium anisopliae on different stages of the pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae)

Omar, Gamal; Ibrahim, A. A.; Hamadah, Khalid

doi:10.1186/s41938-021-00447-w

Cited by 14 publications

(11 citation statements)

References 16 publications

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“…The results of the current study show that B. bassiana PfBb, a strain collected from P. flammans larvae, had strong virulence to first to third instar larvae of S. frugiperda, though its pathogenicity gradually decreased with the increase of the larval instars ( Figure 2 and Figure 3 ; Table 1 and Table 2 ). Similar results have also been reported when pathogenic fungi are collected from other host species [ 35 ] or when other pest insects are infected with B. bassiana [ 46 , 47 ]. For example, the application of B. bassiana has a higher effect on the young larvae of Indarbela dea [ 48 ], suggesting younger larvae are more susceptible to B. bassiana than older larvae [ 49 ].…”

Section: Discussionsupporting

confidence: 86%

Pathogenicity of Beauveria bassiana PfBb and Immune Responses of a Non-Target Host, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Gao

Luo

Wang

et al. 2022

Insects

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Exploring the pathogenicity of a new fungus strain to non-target host pests can provide essential information on a large scale for potential application in pest control. In this study, we tested the pathogenicity of Beauveria bassiana PfBb on the important agricultural pest Spodoptera frugiperda (Lepidoptera: Noctuidae) by determining the relative activities of protective enzymes and detoxifying enzymes in different larval instars. Our results show that the B. bassiana PfBb strain could infect all six larval instars of S. frugiperda, and its virulence to S. frugiperda larvae gradually increased with an increase in spore concentration. Seven days after inoculation, the LC50 of B. bassiana PfBb was 7.7 × 105, 5.5 × 106, 2.2 × 107, 3.1 × 108, 9.6 × 108, and 2.5 × 1011 spores/mL for first to sixth instars of S. frugiperda, respectively, and the LC50 and LC90 of B. bassiana PfBb for each S. frugiperda instar decreased with infection time, indicating a significant dose effect. Furthermore, the virulence of B. bassiana PfBb to S. frugiperda larvae gradually decreased with an increase in larval instar. The activities of protective enzymes (i.e., catalase, peroxidase, and superoxide dismutase) and detoxifying enzymes (i.e., glutathione S-transferases, carboxylesterase, and cytochrome P450) in S. frugiperda larvae of the first three instars infected with B. bassiana PfBb changed significantly with infection time, but such variations were not obvious in the fifth and sixth instars. Additionally, after being infected with B. bassiana PfBb, the activities of protective enzymes and detoxification enzymes in S. frugiperda larvae usually lasted from 12 to 48 h, which was significantly longer than the control. These results indicate that the pathogenicity of B. bassiana PfBb on the non-target host S. frugiperda was significant but depended on the instar stage. Therefore, the findings of this study suggest that B. bassiana PfBb can be used as a bio-insecticide to control young larvae of S. frugiperda in an integrated pest management program.

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Section: Discussionsupporting

confidence: 86%

Pathogenicity of Beauveria bassiana PfBb and Immune Responses of a Non-Target Host, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Gao

Luo

Wang

et al. 2022

Insects

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“…Similarly, entomopathogenic fungi demonstrated effectiveness in causing mortality across various developmental stages of P. gossypiella and B. bassiana exhibited greater toxicity induction compared to M. anisopliae (Omar et al, 2021) under laboratory bioassay studies. Compatibility studies also showed the highest mortality rates when combining V. lecanii, M. anisopliae and B. bassiana with A. indica extract.…”

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confidence: 95%

A brief review on integrated pest management of pink bollworm, Pectinophora gossypiella (Saunders) in cotton

Kumar,

Naik L

et al. 2023

Insect Envt

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An outline of integrated approaches to managing the pink bollworm (Pectinophora gossypiella) within cotton crops is presented. The pink bollworm poses a notable menace to cotton production, necessitating a comprehensive strategy for its effective control. This assessment delves into the fusion of varied techniques for pest management, encompassing cultural, biological, and chemical methodologies, all aimed at mitigating the harm caused by the pink bollworm in an environmentally sound manner. Cultural practices like altering crop types, initiating early planting, and eliminating affected plant remains, disrupt the life cycle of the pest. Biological agents, such as Trichogramma wasps and natural predators, act as inherent checks on population expansion. The judicious application of insecticides, guided by monitoring methods, brings the integrated plan to fruition. The amalgamation emphasizes the importance of a holistic standpoint in curtailing the use of pesticides while upholding effective pest control. The triumphant execution of this approach necessitates the training of farmers, the dispersion of advanced technology, and collaboration among all stakeholders. The different studies underscore the viability of IPM as a sustainable and holistic strategy to manage pink bollworm infestations in cotton, ensuring enhanced yield and ecological equilibrium. Keywords: Pheromone trap, mass trapping, mating disruption, biological control and pesticides

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confidence: 95%

Ambrosia beetle: An emerging pest of arecanut palm

T. N,

E. K,

Thube R

et al. 2023

Insect Envt

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The first issue of Insect Environment was published in 1996. The sole objective of Insect Environment is to popularize insect study through popular, semi-technical and technical research notes, extension notes for managing insect pests, photographs, short blogs and essays on all aspects of insects. The journal is published quarterly, in March, June, September, and December.Insect Environment subscription is free; articles can be downloaded from the website https://insectenvironment.com/ For regular updates, blogs and the journal, upload your mail ID on our website. THERE IS NO SUBSCRIPTION FEE. Those who wish to promote insect science and conservation are welcome to send the sponsorship to AVIAN Trust Bank details are as follows: Bank Name: Federal Bank Bank A/C: 11040100351959 Bank IFSC: FDRL0001104 Swift code: FDRLINBBIBD Author guidelinesShort popular insect notes, review essays, new records, profiles, tributes, and views are acceptable. There are no page charges; each article should preferably not exceed 500 words. Authors can refer to back volumes available on the website for writing style. Good photographs are encouraged. A special insect photo gallery "Insect Lens" is to encourage professional and amateur photographs on insects. These will be published in the quarterly Insect Environment.The blogs are for quick dissemination of insect "news". These will be uploaded within a week of submission and will be on the website. Blogs should be about hundred words with one photograph, in simple English This journal is unique in that it encourages articles from students to amateurs to professionals! It is hosted in CABI (as full text) and ZooBank, Indian Abstracts, Research Gate, Google Scholar etc. ensuring global coverage. Scientific articles are assigned DOI.

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Virulence of Beauveria bassiana and Metarhizium anisopliae on different stages of the pink bollworm, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae)

Cited by 14 publications

References 16 publications

Pathogenicity of Beauveria bassiana PfBb and Immune Responses of a Non-Target Host, Spodoptera frugiperda (Lepidoptera: Noctuidae)

Pathogenicity of Beauveria bassiana PfBb and Immune Responses of a Non-Target Host, Spodoptera frugiperda (Lepidoptera: Noctuidae)

A brief review on integrated pest management of pink bollworm, Pectinophora gossypiella (Saunders) in cotton

Ambrosia beetle: An emerging pest of arecanut palm

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