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163532

EFFECT OF TEMPERATURE AND HOST PLANT ON DVELOPMENTAL TIMES AND LIFE TABLE PRARMETERS OF TETRANYCHUS URTICAE KOCH ON PERSIMMON TREES. (ACARI: TETRANYCHIDAE)

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Last updated: 04 Jan 2025

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Abstract

The two-spotted spider mite, Tetranychus urticae Koch is one of the most important pests of deciduous fruit trees in Egypt. The reproduction, survival, and life table parameters of T. urticae on Kostata and Hachiya Persimmon cultivars leaves were studied under laboratory conditions of 15, 20, 25 and 30 ± 2ºC, 70 ± 5% RH and a photoperiod of 16L: 8D. The shortest period of incubation, immature stages and female longevity were 3.27, 8.92 and 12.98 days, while these periods for males were 3.35, 7.8 and 11.8 days at 30ºC on Kostata persimmon variety, respectively. 30 ºC gave the maximum value of intrinsic rate of increase (rm) 0.243 and 0.297 individuals/♀/ day on and maximum net reproductive rate (Ro) 47.51 and 63.47 individuals/♀ on Kostata and Hachiya varieties, respectively. Maximum fecundity was obtained on Kostata variety at 30ºC at day 15 as 8.93 eggs/♀/day. It was concluded that the Hachiya variety was more favorable for T. urticae than Kostata variety resulting in the highest fecundity and reproduction at 30°C.

DOI

10.21608/ejar.2013.163532

Keywords

Tetranychus urticae Koch, ACARI: TETRANYCHIDAE)

Authors

First Name

AHRAF S .

Last Name

EL-HALAWANY

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Affiliation

Plant Protection Research Institute, ARC, Dokki, Giza, Egypt.

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First Name

NAZEEH M.

Last Name

ABD EL-WAHED

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Affiliation

Plant protection Research Institute, ARC, Dokki, Giza, Egypt.

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Volume

91

Article Issue

2

Related Issue

23720

Issue Date

2013-07-01

Receive Date

2012-11-11

Publish Date

2013-07-01

Page Start

595

Page End

607

Print ISSN

1110-6336

Online ISSN

2812-4936

Link

https://ejar.journals.ekb.eg/article_163532.html

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https://ejar.journals.ekb.eg/service?article_code=163532

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17

Type

Original Article

Type Code

1,041

Publication Type

Journal

Publication Title

Egyptian Journal of Agricultural Research

Publication Link

https://ejar.journals.ekb.eg/

MainTitle

EFFECT OF TEMPERATURE AND HOST PLANT ON DVELOPMENTAL TIMES AND LIFE TABLE PRARMETERS OF TETRANYCHUS URTICAE KOCH ON PERSIMMON TREES. (ACARI: TETRANYCHIDAE)

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Article

Created At

22 Jan 2023