scholarly journals Some biological aspects of Tetranychus urticae Koch on some soybean cultivars at three constant temperatures

2020 ◽  
Vol 14 (1) ◽  
pp. 21-27
Author(s):  
Helmy Anber ◽  
Ahlam Younes ◽  
Ghada El-Shafei ◽  
Mohamed Ammar
Keyword(s):  
Tetranychus Urticae ◽  
Soybean Cultivars ◽  
Biological Aspects ◽  
Tetranychus Urticae Koch

scholarly journals Reproductive parameters of Phytoseiulus macropilis (Banks) fed with Tetranychus urticae Koch (Acari: Phytoseiidae, Tetranychidae) in laboratory

2017 ◽  
Vol 77 (1) ◽  
pp. 162-169 ◽  
Author(s):  
G. C. Souza-Pimentel ◽  
P. R. Reis ◽  
C. R. Bonatto ◽  
J. P. Alves ◽  
M. F. Siqueira
Keyword(s):  
Tetranychus Urticae ◽  
Generation Time ◽  
Economic Value ◽  
Predatory Mites ◽  
Predatory Mite ◽  
Reproductive Parameters ◽  
Important Species ◽  
Phytoseiulus Macropilis ◽  
Biological Aspects ◽  
Tetranychus Urticae Koch

Abstract Predatory mites that belong to the Phytoseiidae family are one of the main natural enemies of phytophagous mites, thus allowing for their use as a biological control. Phytoseiulus macropilis (Banks, 1904) (Acari: Phytoseiidae) is among the main species of predatory mites used for this purpose. Tetranychus urticae Koch, 1836 (Acari: Tetranychidae) is considered to be one of the most important species of mite pests and has been described as attacking over 1,100 species of plants in 140 families with economic value. The objective of the present study was to investigate, in the laboratory, the reproductive parameters of the predatory mite P. macropilis when fed T. urticae. Experiments were conducted under laboratory conditions at 25 ± 2 °C of temperature, 70 ± 10% RH and 14 hours of photophase. In addition, biological aspects were evaluated and a fertility life table was established. The results of these experiments demonstrated that the longevity of adult female was 27.5 days and adult male was 29.0 days. The population was estimated to increase approximately 27 times (Ro) in mean generation time (T), which was 17.7 days. Lastly, the mite population grew 1.2 times/day (λ) and doubled every 3.7 days (TD).

Fitness of Tetranychus urticae Koch (Acari: Tetranychidae) on different soybean cultivars: biology and fertility life-tables

2009 ◽  
Vol 35 (4) ◽  
pp. 341-347 ◽  
Author(s):  
Mehdi Saei Dehghan ◽  
Hossein Allahyari ◽  
Alireza Saboori ◽  
Jamasb Nowzari ◽  
Vahid Hosseini Naveh
Keyword(s):  
Tetranychus Urticae ◽  
Life Tables ◽  
Soybean Cultivars ◽  
Tetranychus Urticae Koch

scholarly journals DEVELOPMENT OF Tetranychus urticae KOCH (ACARI: TETRANYCHIDAE) IN DIFFERENT STRAWBERRY CULTIVARS

2017 ◽  
Vol 39 (1) ◽  
Author(s):  
FÁBIO KARLEC ◽  
ADRIANE DA FONSECA DUARTE ◽  
ANA CLÁUDIA BARNECHE DE OLIVEIRA ◽  
UEMERSON SILVA DA CUNHA
Keyword(s):  
Tetranychus Urticae ◽  
Spider Mite ◽  
Control Method ◽  
Reproductive Potential ◽  
Economic Damage ◽  
Biological Aspects ◽  
Low Efficiency ◽  
Two Spotted Spider Mite ◽  
Tetranychus Urticae Koch ◽  
Strawberry Cultivars

ABSTRACT Two-spotted spider mite, Tetranychus urticae Koch, is considered the main pest in strawberry crop. The control of this species is hampered by the low efficiency of products currently used, occurrence of populations resistant to acaricides and high reproductive potential of this pest. This leads to the use of pesticides and increased agrochemical residues in fruits. The use of resistant cultivars is considered the ideal control method because they maintain mite populations below levels of economic damage, minimize the environmental impact of pesticides at no extra cost to the farmer, and serve as an auxiliary tool in integrated pest management. In this sense, this study evaluated the resistance of strawberry cultivars to T. urticae by studying the development of its biological aspects. Comparative biology experiments and non-preference tests for feeding and oviposition for spider mite were carried out in 16 strawberry cultivars under laboratory conditions. Based on results, it was found that Camarosa, Florida Festival, IAC Campinas and Sabrosa strawberry cultivars indicated the possibility of antibiosis type resistance to spider mite, influencing the preference to food, development and oviposition, indicating the existence of differentiated reaction in population development among cultivars.

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