Authors:
F. Momen National Research Centre Pests and Plant Protection Department 31 El-Tahrir Street 12622 Dokki, Cairo Egypt

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A. Abdel-Khalek National Research Centre Pests and Plant Protection Department 31 El-Tahrir Street 12622 Dokki, Cairo Egypt

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Juvenile survival, predation and development in Typhlodromips swirskii (Athias-Henriot), Euseius scutalis (Athias-Henriot) and Typhlodromus athiasae Porath and Swirski feeding on con- and heterospecific phytoseiid immatures were investigated in the laboratory at 32 ± 2 °C and 70 ± 5% RH. Larvae of all phytoseiid studied do not feed at all to reach the subsequent life stage. More than 90% of T. swirskii and E. scutalis protonymphs preying on larvae of both heterospecific larvae reached the adult stage. The majority (approximately 98%) of T. athiasae protonymphs feeding on larvae of T. swirskii died before reaching the deutonymphal stage, while when preying on E. scutalis , all individuals reached to adulthood. The mean developmental time of T. swirskii from protonymphal stage to adulthood was 2.4 days when feeding on T athiasae and 2.2 days when feeding on E. scutalis . When protonymphs of E. scutalis feeding on larvae of T. swirskii or T. athiasae , completed juvenile development (mean developmental time 2.9 and 2.5 days, respectively).When protonymphs of T. swirskii and T. athiasae held without food, all survived approximately 3 to 4 days and then died before reaching to deutonymphal stage. Unfed immatures of E. scutalis lived longer than the corresponding stages of T. athiasae and T. swirskii (approximately 5 to 7 days). Immatures of T. swirskii and E. scutalis exhibited higher predation rates than T. athiasae when fed on heterospecific prey. Cannibalizing immatures of all 3 phytoseiid species were able to reach adulthood. The present study indicates that phytoseiid immatures are suitable prey for developing stages of polyphagous phytoseiids. Since E. scutalis, T. athiasae and T. swirskii inhabiting the same plant species, their immatures can be regarded as potential prey for competitive phytoseiids in times of food scarcity.

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Editor-in-Chief

Jenő KONTSCHÁN Centre for Agricultural Research, Hungary

Technical Editor

Ágnes TURÓCI Centre for Agricultural Research, Hungary

Section Editor

K SALÁNKI Centre for Agricultural Research, Hungary
 

Editorial Board

Z BOZSÓ Centre for Agricultural Research, Hungary
PE CHETVERIKOV Saint-Petersburg State University, Russia
JX CUI Henan Institute of Science and Technology, China
J FODOR Centre for Agricultural Research, Hungary
Z IMREI Centre for Agricultural Research, Hungary
BM KAYDAN Çukurova University, Turkey
L KISS University of Southern Queensland, Australia
V MARKÓ Hungarian University of Agriculture and Life Sciences, Hungary
MW NEGM Ibaraki University, Japan
L PALKOVICS Széchenyi István University, Hungary
M POGÁNY Centre for Agricultural Research, Hungary
D RÉDEI National Chung Hsing University, Taiwan
A TOLSTIKOV University of Tyumen, Russia
J VUTS Rothamsted Research, UK
GQ WANG Guangxi University, China

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2024  
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2023  
Scopus  
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CiteScore rank Q4 (Insect Science)
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SJR Q rank Q4

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Acta Phytopathologica et Entomologica Hungarica
Language English
Size B5
Year of
Foundation
1966
Volumes
per Year
1
Issues
per Year
2
Founder Magyar Tudományos Akadémia  
Founder's
Address
H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher
Chief Executive Officer, Akadémiai Kiadó
ISSN 0238-1249 (Print)
ISSN 1588-2691 (Online)

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