scholarly journals Abundance, genetic diversity and persistence of Metarhizium spp. fungi from soil of strawberry crops and their potential as biological control agents against the two-spotted spider mite Tetranychus urticae

2016 ◽  
Author(s):  
Thiago Rodrigues de Castro
Keyword(s):  
Genetic Diversity ◽  
Biological Control ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Biological Control Agents ◽  
Two Spotted Spider Mite

Biological control of the two-spotted spider mite (Tetranychus urticae) in cucumber greenhouses in Jordan and Israel

2010 ◽  
Vol 58 (1) ◽  
pp. 9-12 ◽  
Author(s):  
Fadel Mansour ◽  
Marwan Abdelwali ◽  
Jihad Haddadin ◽  
Nasser Romiah ◽  
Fauzi Abo-Moch
Keyword(s):  
Biological Control ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Two Spotted Spider Mite

scholarly journals Myco-metabolites as biological control agents against the two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae)

2019 ◽  
Vol 29 (1) ◽  
Author(s):  
Mohamed E. Osman ◽  
Amany A. Abo Elnasr ◽  
Mohamed A. Nawar ◽  
Gohyza A. Hefnawy
Keyword(s):  
Secondary Metabolites ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Laboratory Evaluation ◽  
Biological Control Agents ◽  
Liquid Chromatography Mass Spectrometry ◽  
Agricultural Pests ◽  
Two Spotted Spider Mite ◽  
Tetranychus Urticae Koch ◽  
Promising Source

Abstract Fungi are a promising source for bioactive secondary metabolites against various agricultural pests. Soil samples were collected from the rhizosphere of various plants at El-Khatatba, Egypt, in May 2016. Sixty-two fungal isolates were locally isolated and screened against Tetranychus urticae Koch (Acari: Tetranychidae). Four fungal strains, showed potent control activities, were morphologically identified. Laboratory evaluation of the crude extracts of the selected strains, Aspergillus melleus, A. terreus, Emericella nidulans, and Chaetomium globosum, exhibited LC50 values of 10.27, 33.05, 14.68, and 22.40 mg/ml against females of T. urticae, respectively. Correspondent LC50 values that exhibited on eggs were 8.81, 23.17, 11.66, and 11.05 mg/ml. Consequently, secondary metabolites of A. melleus were separated by liquid chromatography/mass spectrometry. Compounds separated from the active fraction were identified as mellamide, ochratoxin C, nodulisporic acid, 7-Oxocurvularin, and 6-(4′-hydroxy-2′-methyl phenoxy)-(−)-(3R)-mellein. Obtained secondary metabolites are promising sources for biopesticides to be used in bio-rationale control of T. urticae.

scholarly journals Variability of infestation of rose varieties by the spider mite Tetranychus urticae under conditions of application of Phytoseiulus persimilis or acaricides

2021 ◽  
Vol 104 (4) ◽  
pp. 218-222
Author(s):  
V. V. Moor ◽  
A. I. Anisimov ◽  
E. G. Kozlova*
Keyword(s):  
Biological Control ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Biological Control Agent ◽  
Ornamental Plants ◽  
Phytoseiulus Persimilis ◽  
Predatory Mite ◽  
Control Agent ◽  
Pest Mite ◽  
Two Spotted Spider Mite

The two-spotted spider mite Tetranychus urticae is a dangerous polyphagous pest of agricultural and ornamental plants. In a commercial greenhouse treated with acaricides or biological control using predatory mite Phytoseiulus persimilis individual varieties of roses differed significantly in terms of the average annual infestation by the pest mite. On the poorly populated rose varieties, the biological control agent application was more effective as compared to the acaricides. To effectively control the pest, the required predatory mite rates were 4.6–8.7 times higher on varieties with a minimal spider mite infestation (Aqua and Deep Water) as compared to the maximal pest infestation (Heaven and Brazil).

Phytoseiid mites (Acari: Phytoseiidae) from Chile, with descriptions of three new species and a redescription of Chileseius camposi

Zootaxa ◽  
2018 ◽  
Vol 4482 (2) ◽  
pp. 322
Author(s):  
R. D. TRINCADO ◽  
J. P. I. MARTIN ◽  
D. D. MÉNDEZ ROSA ◽  
P. C. LOPES ◽  
G. J. DE MORAES
Keyword(s):  
Biological Control ◽  
New Species ◽  
Tetranychus Urticae ◽  
Spider Mite ◽  
Phytoseiulus Persimilis ◽  
Phytoseiid Mites ◽  
Three New Species ◽  
Two Spotted Spider Mite ◽  
Amblyseius Herbicolus ◽  
Tetranychus Urticae Koch

A total of 40 phytoseiid species has been reported from Chile, including the two species (Neoseiulus californicus (McGregor) and Phytoseiulus persimilis (Athias-Henriot) most widely used worldwide for the biological control of the two-spotted spider mite, Tetranychus urticae Koch (Tetranychidae). In this paper we report nine other species found in new collecting conducted since 1989, including three new species: Amblyseius herbicolus (Chant), Amblyseius tamatavensis Blommers, Arrenoseius robertogonzalezi Trincado & Martin n. sp., Neoseiulus anonymus (Chant & Baker), Neoseiulus bicaudus (Wainstein), Neoseiulus viticolus Trincado & Martin n. sp., Metaseiulus (Metaseiulus) camelliae (Chant & Yoshida-Shaul), Metaseiulus (Metaseiulus) neoflumenis Moraes & Kreiter and Metaseiulus (Metaseiulus) relictus Trincado & Martin n. sp.. Chileseius camposi Gonzalez & Schuster, 1962 is redescribed, and a list of all species presently known from Chile and a key to help in their separation are given. A new name, Proprioseiopsis kargi Trincado nom. nov., is a replacement name for Proprioseiopsis globosus Karg, 1976, a junior homonym of Proprioseiopsis globosus (Gonzalez & Schuster, 1962). 

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