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Acaricidal Management of Abamectin Mixtures against All Stages 0f the Two-Spotted Spider Mite, Tetranychus urticae Koch, Infesting Cucumber Plants

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Last updated: 01 Jan 2025

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Plant pest management

Abstract

Tetranychus urticae is a worldwide common pest for many vegetable species in greenhouses and open fields. The study was conducted to evaluate the performance of two acaricide mixtures: Highpoint® 10% EC (abamectine + hexythiazox) and Ignar® 20% SC (abamectine + spirodiclofen), as well as a single active ingredient, Envidor® 24% SC (spirodiclofen), against the two-spotted spider mite in greenhouse and lab experiments.
In the greenhouse experiment, both Ignar® and Highpoint® outperformed Envidor® acaricide against the adult and immature stages through the first 3 days in both experimental seasons. After 24 hours, Ignar® and Highpoint® achieved the highest efficacy with percent of reduction 95.00 and 94.86 in the 1st season and 97.84 and 95.76% in the 2nd season, respectively. Meanwhile, Envidor® gave lower reduction percentages of 84.93 and 83.88%, respectively. Regarding the immature stage, Ignar®, Highpoint®, and Envidor® achieved reductions of 95.63%, 94.26%, and 83.31% after 24 hours for the first season and 94.09, 95.79, and 80.57% in the second season, respectively. The residual efficacy gradually decreased to reach 62.22 and 59.72% for Ignar® and 58.31 and 59.31% for Highpoint® in both seasons.
On the other hand, the initial kill for all acaricides against the egg stage was low after 24 hours. However, after 3 days, Ignar® and Highpoint® showed a sharp increase in efficacy, with a reduction percent (81.24 and 51.60% in the 1st season) and (73.83 and 81.86% in the 2nd season), respectively. Envidor® showed high efficacy only at the 7th day, with varying efficacy during the inspection periods.
Laboratory bioassay tests revealed that Ignar® was the most toxic acaricide against T. urticae adults and immatures, with a 100% toxicity index. Highpoint® had a moderate toxicity index against adult and immature stages, while Envidor® was less effective. Ignar® and Highpoint® were the most toxic compounds against eggs.
Abamectin mixtures are the most toxic compounds. Highpoint® and Ignar®, were considered to have the best efficacy on all developmental stages of the two-spotted spider mite. Due to the extensive use of abamectin to eliminate mites and numerous sucking insects, it is better to avoid its repeated use alone or in the same mixtures to control mites for more than one or two applications in the season.
The data may suggest that the appropriate acaricide for integrated pest management (IPM) for all stages of T. urticae could be Ignar® and Highpoint®.
 

DOI

10.21608/asejaiqjsae.2023.309713

Keywords

T. urticae, Acaricides, Abamectin, mixtures, Cucumber, Ignar®, Highpoint®, Envidor®

Authors

First Name

Abdel Fattah

Last Name

S. A. Saad

MiddleName

-

Affiliation

Plant Protection Department, Faculty of Agriculture (Saba Basha), Alexandria Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

Magdy

Last Name

A. Massoud

MiddleName

-

Affiliation

Plant Protection Department, Faculty of Agriculture (Saba Basha), Alexandria Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

Mohamed

Last Name

M. Y. El-Shazly

MiddleName

-

Affiliation

Plant Protection Department, Faculty of Agriculture (Saba Basha), Alexandria Univ., Egypt.

Email

-

City

-

Orcid

-

First Name

Saadoon

Last Name

M. Saadoon

MiddleName

-

Affiliation

Department of Plant Protection, College of Agriculture, Al-Qadisiyah Univ., Iraq. (postgraduate Student).

Email

-

City

-

Orcid

-

First Name

Shady

Last Name

Selim

MiddleName

-

Affiliation

Department of Pesticide Chemistry and Technology, Faculty of Desert and Environmental Agriculture, Matrouh University, Matrouh, Egypt.

Email

shady_selim@mau.edu.eg

City

الاسكندرية

Orcid

0000-0002-6971-914X

Volume

44

Article Issue

3

Related Issue

42489

Issue Date

2023-09-01

Receive Date

2023-06-20

Publish Date

2023-09-30

Page Start

313

Page End

321

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 44_Issue 3_Pages 313-321.pdf

PDF . 351.8kB

Link

https://asejaiqjsae.journals.ekb.eg/article_309713.html

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https://asejaiqjsae.journals.ekb.eg/service?article_code=309713

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5

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Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Acaricidal Management of Abamectin Mixtures against All Stages 0f the Two-Spotted Spider Mite, Tetranychus urticae Koch, Infesting Cucumber Plants

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Article

Created At

23 Dec 2024