311823

Spatial Distribution and Abundance of the Mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae) Infesting Okra Plants

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Last updated: 04 Jan 2025

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Abstract

Phenacoccus solenopsis Tinsley (Hemiptera: Pseudococcidae), poses a significant threat to newly targeted okra plants. This pernicious pest can be found on all plant parts, leading to desiccation and ultimate demise. Our study aimed to examine the spatial distribution pattern of P. solenopsis infestation in okra plants, specifically focusing on the Balady cultivar, over two consecutive seasons (2021-2022) in the Luxor region of Egypt. We employed insect counts and determined the percentage of infested plants to characterize the insect population. Our findings revealed that P. solenopsis infestation on okra plants emerged five weeks after planting (WAP) and persisted until harvest in every season. During each season, we observed three distinct peaks in population numbers and infestation rates of P. solenopsis. Notably, the initial season exhibited higher overall quantities of P. solenopsis compared to the subsequent season. At 20 WAP, we observed the most suitable time for population estimates to increase, while at 5 WAP, it was the least favorable for activity during both seasons. Statistical analysis of variance demonstrated significant variations in P. solenopsis population estimates and infestation percentages across different inspection periods. Additionally, through nonlinear regression analysis, we elucidated the relationship between P. solenopsis numbers and phenological development. Data were evaluated using dispersion measures, and all P. solenopsis dispersal indices had substantial aggregated behavior and were strongly related to the host's phenological evolution during each season. Based on the available data, we can develop effective strategies for monitoring and controlling mealybugs in okra plants.

DOI

10.21608/svuijas.2023.223578.1297

Keywords

distribution patterns, okra plants, Phenacoccus solenopsis, population density

Authors

First Name

M.M.S.

Last Name

Bakry

MiddleName

-

Affiliation

Department of Scale Insects and Mealybugs Research, Plant Protection Research Institute, Agricultural Research Centre A.R.C., 12511 Giza, Egypt

Email

md.md_sabry@yahoo.com

City

esna

Orcid

0000-0001-9775-0286

First Name

A.M.M.

Last Name

Badawy

MiddleName

-

Affiliation

Zoology Department, Faculty of Science, South Valley University, 83523 Qena, Egypt.

Email

amr.badawy@sci.svu.edu.eg

City

Qena

Orcid

0000-0002-4561-2647

First Name

Lamiaa

Last Name

Mohamed

MiddleName

H.Y.

Affiliation

Department of Scale Insects and Mealybugs Research, Plant Protection Research Institute, Agricultural Research Centre A.R.C., 12511 Giza, Egypt

Email

dr.lamiayousri123@gmail.com

City

-

Orcid

-

Volume

5

Article Issue

3

Related Issue

39220

Issue Date

2023-07-01

Receive Date

2023-07-18

Publish Date

2023-07-01

Page Start

1

Page End

17

Print ISSN

2636-3801

Online ISSN

2636-381X

Link

https://svuijas.journals.ekb.eg/article_311823.html

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https://svuijas.journals.ekb.eg/service?article_code=311823

Order

311,823

Type

Original Article

Type Code

1,132

Publication Type

Journal

Publication Title

SVU-International Journal of Agricultural Sciences

Publication Link

https://svuijas.journals.ekb.eg/

MainTitle

Spatial Distribution and Abundance of the Mealybug, Phenacoccus solenopsis (Hemiptera: Pseudococcidae) Infesting Okra Plants

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Article

Created At

25 Dec 2024