scholarly journals Performance of Metarhizium anisopliae -treated foam in combination with Phytoseiulus longipes Evans against Tetranychus evansi Baker & Pritchard (Acari: Tetranychidae)

2018 ◽  
Vol 74 (12) ◽  
pp. 2835-2841 ◽  
Author(s):  
Ginette Y Azandémè Hounmalon ◽  
Nguya K Maniania ◽  
Saliou Niassy ◽  
Simon Fellous ◽  
Serge Kreiter ◽  
...  
Keyword(s):  
Metarhizium Anisopliae ◽  
Tetranychus Evansi ◽  
Phytoseiulus Longipes

Bioactivity of oxymatrine and azadirachtin against Tetranychus evansi (Acari: Tetranychidae) and their compatibility with the predator Phytoseiulus longipes (Acari: Phytoseiidae) on tomato

2021 ◽  
Author(s):  
Patrice Jacob Savi ◽  
Marcio Barbosa Martins ◽  
Gilberto José De Moraes ◽  
Fabien Charles Cossi Hountondji ◽  
Daniel Júnior Andrade
Keyword(s):  
Residual Activity ◽  
Residual Effect ◽  
Development Stage ◽  
Effective Control ◽  
Tetranychus Evansi ◽  
Tomato Plants ◽  
Laboratory Conditions ◽  
Low Toxicity ◽  
Phytoseiulus Longipes ◽  
Screen House

Tetranychus evansi Baker & Pritchard (Acari: Tetranychidae) is one of the main tomato pests in several countries, mainly in Africa, and applications of synthetic acaricides are the main strategy for its control. Efficient biopesticides to suppress pest populations, with low toxicity against natural enemies, is highly desirable for integrated pest management. Here, we evaluated under laboratory conditions the effect of azadirachtin- and oxymatrine-based formulations on each development stage of T. evansi and on the adult stage of the predatory mite Phytoseiulus longipes, the single promising predator of this pest. We also assessed the residual effect of these biopesticides on T. evansi under laboratory conditions on leaflets excised from treated tomato plants maintained in a screen-house 1, 5, and 10 days after application. Azadirachtin-based formulations were effective in controlling T. evansi immature stages. Oxymatrine-based treatments controlled T. evansi immatures and adult females faster than azadirachtin-based treatments. Both biopesticides had no effect on T. evansi eggs, but oxymatrine-based treatments were highly efficient on newly hatched T. evansi larvae. Oxymatrine displayed residual activity that controlled T. evansi up to 10 days after application. Azadirachtin formulations caused lower mortality of P. longipes adults (8–28%) and slightly reduced fecundity (24.8–56.1%). In contrast, oxymatrine treatments caused higher mortality (60–88%) of the predator and reduced substantiality its fecundity (73.1–90.7%). Our findings suggest that Azadirachtin and oxymatrine provide effective control of T. evansi. Azadirachtin may be relatively safer to the predatory mites whereas oxymatrine should be used with caution, to avoid suppression of P. longipes.

On the specific identity of specimens of Phytoseiulus longipes Evans (Mesostigmata: Phytoseiidae) showing different feeding behaviours: morphological and molecular analyses

2010 ◽  
Vol 100 (5) ◽  
pp. 569-579 ◽  
Author(s):  
M.-S. Tixier ◽  
M. Ferrero ◽  
M. Okassa ◽  
S. Guichou ◽  
S. Kreiter
Keyword(s):  
Prey Species ◽  
Feeding Habits ◽  
Genetic Distances ◽  
Tetranychus Evansi ◽  
Control Programs ◽  
The Family ◽  
Morphological Differences ◽  
Phytoseiulus Longipes ◽  
First Time ◽  
Two Populations

AbstractThis paper focuses on the differentiation of specimens, identified as Phytoseiulus longipes, collected in four countries: Argentina, Brazil, Chile and South Africa. Two of these populations are known to feed and develop on Tetranychus evansi, whereas the two others do not. As morphologically similar specimens can sometimes belong to different species and because differences in predatory behaviours exist among the four populations considered, we tested for the presence of cryptic species. Morphological and molecular experiments (12S rDNA) were carried out. The four studied populations of P. longipes could be morphologically differentiated thanks to a combination of characters. However, these morphological differences are very small. The two populations that feed and develop on T. evansi (from Argentina and Brazil) are morphologically closer to each other than to the two other populations. Genetic distances among the four populations of P. longipes were very low, suggesting that despite their different feeding habits, all specimens belong to the same species. However, the populations associated with T. evansi showed some genetic differentiation from those that do not use this pest. This is the first time that this type of differentiation has been reported for the family Phytoseiidae. These results are of primary importance to ensure the success of biological control programs and to develop strains adapted to both crops and prey species.

Visual, vibratory, and olfactory cues affect interactions between the red spider mite Tetranychus evansi and its predator Phytoseiulus longipes

2015 ◽  
Vol 89 (1) ◽  
pp. 137-152 ◽  
Author(s):  
Ginette Yèyinou Azandémè-Hounmalon ◽  
Baldwyn Torto ◽  
Komi Kouma Mokpokpo Fiaboe ◽  
Sevgan Subramanian ◽  
Serge Kreiter ◽  
...  
Keyword(s):  
Spider Mite ◽  
Olfactory Cues ◽  
Tetranychus Evansi ◽  
Red Spider Mite ◽  
Phytoseiulus Longipes

Life tables of the predatory mite Phytoseiulus longipes feeding on Tetranychus evansi at four temperatures (Acari: Phytoseiidae, Tetranychidae)

2007 ◽  
Vol 41 (1-2) ◽  
pp. 45-53 ◽  
Author(s):  
Maxime Ferrero ◽  
Gilberto J. de Moraes ◽  
Serge Kreiter ◽  
Marie-Stéphane Tixier ◽  
Markus Knapp
Keyword(s):  
Predatory Mite ◽  
Life Tables ◽  
Tetranychus Evansi ◽  
Phytoseiulus Longipes
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