Aqueous extract of chili pepper in the management of the pink hibiscus mealybug (Hemiptera: Pseudococcidae)

Marchiori, Johnatan Jair de Paula; Holtz, Anderson Mathias; Piffer, Ana Beatriz Mamedes; Aguiar, Ronilda Lana; Botti, Jéssica Mayara Coffler; Franzin, Mayara Loss; Oliveira, Vinícius de Souza; Fontes, Patrícia Soares Furno; Magnani, Bruna de Oliveira; Gomes, Matheus de Paula

doi:10.22271/j.ento.2023.v11.i3a.9193

J. Entomol. Zool. Stud.

2023

DOI: 10.22271/j.ento.2023.v11.i3a.9193

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Aqueous extract of chili pepper in the management of the pink hibiscus mealybug (Hemiptera: Pseudococcidae)

Johnatan Jair de Paula Marchiori¹,

Anderson Mathias Holtz²,

Ana Beatriz Mamedes Piffer³

et al.

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Cited by 3 publications

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Could Aqueous Extract from Castor Plants be the Solution to Effectively Control the Pink Mealybug Nymphs?

Marchiori,

Holtz,

De Assis

et al. 2024

RGSA

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Objective: To evaluate under laboratory conditions the potential of the leaf extract of the species Ricinus communis L. regarding its insecticidal activity on nymphs of the pink mealybug and determine the Lethal Concentration 50 (LC50). Theoretical reference: Maconellicoccus hirsutus is one of the key pests of several crops and has been diagnosed in more than 350 plant species. The species was reported for the first time in Brazil in 2010 in the State of Roraima, and has since spread to other Brazilian states causing considerable economic losses to the affected areas. Method: The castor bean leaf extract was tested on M. hirsutus insects with varying concentrations. Application was done directly using an airbrush connected to a calibrated compressor. Evaluation occurred at 24, 48, and 72-hour intervals post-application. Results and discussion: As the dosage of the extract was increased, a significant increase in the mortality rate of mealybugs was observed. The lethal concentration for 50 % of the M. hirsutus population (LC50) was calculated at 6.14%, with a confidence interval between 5.40 % and 7.02 % (m/v). Implications of the research: The research proposes a sustainable approach to controlling pink mealybug nymphs, using an aqueous extract of R. communis leaves. Originality/value: This article stands out for its innovation in exploring a sustainable approach to pest control, presenting an effective alternative to reduce dependence on chemical pesticides. This proposal is especially relevant to promote the adoption of more sustainable agricultural practices aligned with the principles of sustainable agriculture and providing benefits for both agricultural production and the environment.

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Could Aqueous Extract from Castor Plants be the Solution to Effectively Control the Pink Mealybug Nymphs?

Marchiori,

Holtz,

De Assis

et al. 2024

RGSA

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Eruca Vesicaria (Arugula) Extract: Possible Acaricidal Effect Against Red Palm Mite

Carriço,

Marchiori,

Holtz

et al. 2023

RGSA

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Purpose: Therefore, this study aimed to use the crude extract of Eruca vesicaria (arugula) leaves in the management of Raoiella indica. Theoretical reference: The red palm mite is an invasive species and is considered a pest of great importance for coconut and banana trees and other plants in the Arecaceae family. Therefore, this study aimed to use the crude extract of Eruca vesicaria (arugula) leaves in the management of Raoiella indica. Method: For this, fine powder from arugula leaves was used diluted in water and Tween® adhesive spreader, in concentrations of 1.0; 1.58; 2.51; 3.98; 6.31, and 10.0 %. These extracts were sprayed on 10 adult females of R. indica per sample unit, with 10 replicates for each concentration. The acaricidal effect was evaluated at different time intervals after spraying: 12, 24, 36, 48, 60, and 72 hours. Results and conclusion: The results demonstrate that mortality of the R. indica mite increases as the concentration of arugula vegetable extract increases, with lethal concentrations above 3.98 % being indicated for control. Research implications: The aqueous arugula extract, in its different concentrations, demonstrated acaricidal efficacy against the red palm mite under laboratory conditions. Originality/value: This text adds value to fields of study such as alternative insect control in crops and sustainability, proposing a change in the ecologically responsible behavior of farmers.

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Efficiency of Citrus limon L. Ripe Peel Extract In The Control of Raoiella indica (HIRST, 1924) (Prostigmata: Tenuipalpidae)

Garcia Holtz,

Salomão,

Holtz

et al. 2024

RGSA

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Purpose: This study aimed to evaluate the acaricidal potential of the aqueous extract obtained from the ripe peels of Citrus limon on adults of Raoiella indica. Theoretical Reference: R. indica is a phytophagous mite that primarily attacks plants of the Arecaceae family. As it is considered a relatively new pest in Brazil, there are few control methods available, with synthetic chemical control being the primary one. Method: The ripe peels of C. limon were dried and ground into a fine powder, which was used to formulate extract concentrations of 0.00, 1.00, 1.64, 2.70, 4.44, 7.30, and 12.00%. The extracts were sprayed on 12 adult females of R. indica per experimental unit, with 7 repetitions for each concentration. Mortality was assessed at 24, 48, and 72 hours after spraying. Results and Conclusion: The mortality of R. indica increased as the concentrations of the ripe peel extract of C. limon increased, reaching 88% for the highest concentration after 72 hours of application. Research Implications: The aqueous extract of ripe peels of C. limon demonstrated acaricidal efficiency against R. indica under controlled conditions. Originality/Value: This work adds value to the study of alternative methods of agricultural pest control, as a means of promoting more economically and ecologically sustainable management.

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Aqueous extract of chili pepper in the management of the pink hibiscus mealybug (Hemiptera: Pseudococcidae)

Cited by 3 publications

References 0 publications

Could Aqueous Extract from Castor Plants be the Solution to Effectively Control the Pink Mealybug Nymphs?

Could Aqueous Extract from Castor Plants be the Solution to Effectively Control the Pink Mealybug Nymphs?

Eruca Vesicaria (Arugula) Extract: Possible Acaricidal Effect Against Red Palm Mite

Efficiency of Citrus limon L. Ripe Peel Extract In The Control of Raoiella indica (HIRST, 1924) (Prostigmata: Tenuipalpidae)

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