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403633

Effect of three fig cultivars and temperature on the biology and life-table parameters of Tetranychus urticae Koch (Acari: Tetranychidae)

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Last updated: 13 Jan 2025

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Abstract

ABSTRACT The effect of three fig cultivars Ficus carica L. (i.e., Adsi, Black michan, and Sultani) at three constant temperatures of  22, 27, and 32 °C, 70% RH, and 12 h photoperiod on the developmental duration and reproductive rate of the two-spotted spider mite Tetranychus urticae Koch was studied. Results indicated that temperature degree plays a key role in the time needed for T. urticae developmental stages to reach adulthood. Increasing the temperature accelerated the developmental rate and female fecundity and daily rate of egg production were positively affected. The shortest average life cycle was 10.0 & 10.03, 6.40 & 6.90, and 8.8 & 8.90 days for male and female at 32°C on Adsi, Black michan, and Sultani cultivars, respectively. Mean fecundity was highest at a temperature of 27°C (97.33 eggs/ female), and lowest was at 22°C (73.20 eggs/ female). The fig cultivar affected significantly on duration of immature stages, oviposition period, longevity, and average fecundity of T. urticae. The development thresholds (t0) of the eggs and immature stages varied from 8.26 to 17.11°C, and the total effective temperatures (K) ranged from 40.42 to 152.17 degree-days for females. The highest intrinsic rate of increase (rm) and net reproductive rate (R0) was on 'Black michen' at 27 and 32ºC, while the lowest value was on 'Adsi' at 22 ºC. As the temperature increased, the values of the mean generation time (T) and generation doubling time (DT) decreased. Gross reproductive rate (GRR) was also affected by fig cultivar and temperature where the highest value was 94.8 offspring/ individual achieved when mites were kept at 27°C on 'Black michen' while the lowest value was 42.4 offspring/individual on 'Adsi' at 22°C. The results suggested that temperatures between 27 and 32°C are the most suitable conditions for the development, survival, and reproduction of T. urticae. While, the Black michen cultivar is the most favorable host for the development and reproduction of spider mite T. urticae. 

DOI

10.21608/ajesa.2024.403633

Keywords

duration, spider mite, fecundity, susceptibility, Ficus carica, Egypt

Authors

First Name

Ahmed

Last Name

Amer

MiddleName

Ibrahim

Affiliation

Cotton and Filed Crops Mites Department Plant Protection Research Institute, Agricultural Research Centre, Dokii, Giza, Egypt

Email

drahmedamer26@gmail.com

City

Zefta

Orcid

0009-0001-1605-7955

First Name

Seham

Last Name

Ezz El-Dein

MiddleName

-

Affiliation

Cotton and Filed Crops Mites Department Plant Protection Research Institute, Agricultural Research Centre, Dokii, Giza

Email

dr.sehamezz@yahoo.com

City

-

Orcid

0000-0001-8646-1075

First Name

ola

Last Name

roshdy

MiddleName

-

Affiliation

Fruit Trees Mites Department, Plant Protection Research Institute (Manssoura), ARC, 12611, Dokki, Giza,

Email

dr.olaroshdy@gmail.com

City

-

Orcid

0000-0002-8629-1536

Volume

18

Article Issue

1

Related Issue

52885

Issue Date

2024-12-01

Receive Date

2025-01-08

Publish Date

2024-12-01

Page Start

29

Page End

38

Print ISSN

1687-4633

Online ISSN

2090-3790

Link

https://ajesa.journals.ekb.eg/article_403633.html

Detail API

http://journals.ekb.eg?_action=service&article_code=403633

Order

403,633

Type

Original research articles

Type Code

28

Publication Type

Journal

Publication Title

Acarines: Journal of the Egyptian Society of Acarology

Publication Link

https://ajesa.journals.ekb.eg/

MainTitle

Effect of three fig cultivars and temperature on the biology and life-table parameters of Tetranychus urticae Koch (Acari: Tetranychidae)

Details

Type

Article

Created At

13 Jan 2025