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Entomopathogenic nematodes as biocontrol agents tomato leafminer Tuta absolute compared with the chemical insecticide, Emamectin benzoate.

Article

Last updated: 04 Jan 2025

Subjects

-

Tags

Computer Sciences and Agricultural Science

Abstract

Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) is an invasive alien species especially infested tomato crops. It invaded Egypt in 2009 and many plantations. It's difficult to control due to the limitation of insecticides, therefore, the susceptibility of T. absoluta to three indigenous isolates of entomopathogenic nematodes in Egypt, i. e. Heterorhabditis bacteriophora (EKB20), Steinernema sp. (B32) and Heterorhabiditis sp. (Kasassien isolate) were determined in the laboratory, greenhouse, and field experimental compared with emamectin benzoate insecticide. Leaf bioassays were carried out to evaluate the affinity of nematode isolates to reach the larvae and affect them at the galleries. The efficacy of the three nematode species after foliar application to potted tomato plants was evaluated under laboratory conditions. High larval mortality (70.6–94%) and low pupae mortality (<25%) were determined. In the leaf bioassay tests, a high level of larval infestation (75.4–88.6%) indicated the nematode's ability to kill the larvae within the galleries compared with 100% mortality of emamectin benzoate with the recommended dose. In the pot experiments treatment plants with nematode caused a reduction in insect infestation by 87–94% compared with 96% in the treatment of emamectin benzoate. The results of the field experiment showed the efficiency of entomopathogenic nematodes for reducing infestation with T. absoluta with 70 to 90 % reduction % compared with more than 95% with emamectin benzoate. The results suggested that EPN are considered promising biocontrol agents, if correctly applied and released in integrated control schemes against the tomato leaf miners T. absoluta.

DOI

10.21608/jmr.2023.183085.1098

Keywords

Entomopathogenic nematodes, Tuta absoluta, biological control

Authors

First Name

Ahmed

Last Name

El Roby

MiddleName

Salah M.H.

Affiliation

Plant Protection Dept. Faculty o Agric. Minia Univ.

Email

elrobyahmed1980@gmail.com

City

Minia

Orcid

-

First Name

Moshira

Last Name

Shaban

MiddleName

M.

Affiliation

Plant Protection Dept. Faculty of Agric., Minia Univ., Minia, Egypt

Email

amjy236@gmail.com

City

Minia

Orcid

-

First Name

Arwa

Last Name

Abdel Hakeem

MiddleName

-

Affiliation

Plant Protection Dept., Faculty of Agric., Minia University, Minia, Egypt

Email

arwahady342016@gmail.com

City

Minia

Orcid

-

Volume

5

Article Issue

2

Related Issue

42360

Issue Date

2023-07-01

Receive Date

2022-12-24

Publish Date

2023-07-01

Page Start

18

Page End

23

Online ISSN

2636-3909

Link

https://jmr.journals.ekb.eg/article_305328.html

Detail API

https://jmr.journals.ekb.eg/service?article_code=305328

Order

2

Type

Original Article

Type Code

777

Publication Type

Journal

Publication Title

Journal of Modern Research

Publication Link

https://jmr.journals.ekb.eg/

MainTitle

Entomopathogenic nematodes as biocontrol agents tomato leafminer Tuta absolute compared with the chemical insecticide, Emamectin benzoate.

Details

Type

Article

Created At

24 Dec 2024