Current status of a ring-tested method to determine pesticide effects on the predatory mite Typhlodromus pyri (Scheuten) (Acarina: Phytoseiidae) in the laboratory

Ecotoxicology ◽  
1998 ◽  
pp. 89-97
Author(s):  
Sylvia Blümel ◽  
B. Baier ◽  
F. Bakker ◽  
U. Bienert ◽  
M. Candolfi ◽  
...  
Keyword(s):  
Predatory Mite ◽  
Typhlodromus Pyri ◽  
Current Status

scholarly journals Influence of leaf trichomes on predatory mite (Typhlodromus pyri) abundance in grape varieties

2008 ◽  
Vol 45 (3-4) ◽  
pp. 111-122 ◽  
Author(s):  
R. Loughner ◽  
K. Goldman ◽  
G. Loeb ◽  
J. Nyrop
Keyword(s):  
Predatory Mite ◽  
Typhlodromus Pyri ◽  
Leaf Trichomes ◽  
Grape Varieties

The predatory mite Typhlodromus pyri (Acari: Phytoseiidae) as a biocontrol agent of Eriophyes pyri (Acari: Eriophyidae) on pear

Biologia ◽  
2011 ◽  
Vol 66 (1) ◽  
Author(s):  
Ján Praslička ◽  
Janka Schlarmannová ◽  
Barbora Matejovičová ◽  
Ján Tancík
Keyword(s):  
Biological Activity ◽  
Untreated Control ◽  
Biocontrol Agent ◽  
Predatory Mite ◽  
Typhlodromus Pyri ◽  
The Other ◽  
Control Group ◽  
Untreated Control Group ◽  
Other Hand

AbstractThe effectiveness of the predatory mite Typhlodromus pyri and of an application of Polysulphide-Ca was compared during 2006–2008. The experiment showed differences in infestation levels of pear leaves caused by Eriophyes pyri. The highest percentage of leaves with symptoms was found in untreated control group (⊘ 20.9%); the lowest percentage was found in plots treated with T. pyri (⊘ 3.7%); and a slightly higher percentage was found in plots treated with Polysulphide-Ca (⊘ 8.6%). During 2006–2008 the percentage of leaves with symptoms was approximately the same only in the untreated control plots (from 20.3% to 21.5%). The percentage of leaves with characteristic symptoms in plots treated with T. pyri decreased from 5.5% in 2006 to 4.3% in 2007, and to 1.3% in 2008. On the other hand, the percentage of leaves with symptoms in plots treated with Polysulphide-Ca increased from 5.5% in 2006 to 8.5% in 2007, and to 11.8% in 2008. The intensity of symptoms on infested leaves was also different depending on treatments and years. The average biological activity was 82.4% in plots receiving releases of T. pyri and 58.8% in plots treated with Polysulphide-Ca.

Predatory mites of the Phytoseiidae family in integrated and ecological pest management systems in orchards in Slovakia

Biologia ◽  
2009 ◽  
Vol 64 (5) ◽  
Author(s):  
Ján Praslička ◽  
Andrea Barteková ◽  
Janka Schlarmannová ◽  
Radovan Malina
Keyword(s):  
Pest Management ◽  
Management System ◽  
Predatory Mites ◽  
Mite Species ◽  
Predatory Mite ◽  
Typhlodromus Pyri ◽  
Apple Orchards ◽  
Amblyseius Andersoni ◽  
Phytoseiulus Macropilis ◽  
The Family

AbstractDuring 2005–2007, 1,332 individuals of predatory mites were found in integrated and ecological orchards in Slovakia. Seven predatory mite species of the family Phytoseiidae, namely Phytoseius echinus, Phytoseiulus macropilis, Euseius finlandicus, Typhlodromus pyri, Paraseiulus triporus, Amblyseius andersoni and Neoseiulella tiliarum, were identified. Out of 1,332 individuals, 519 (39.0%) were found in the apple orchards and 813 (61.0%) in the pear orchards. Out of all predatory mite individuals, 460 (34.5%) were found in the integrated pest management system (IPM) and 872 (65.5%) in the ecological pest management system (EPM). In apple orchards, P. echinus was dominant and constituted 49.3% of the detected mites. In pear orchards, E. finlandicus was dominant and constituted 48.7% of the detected mites. Typhlodromus pyri was also abundant, especially in pear orchards. The other species were less abundant.

Population density of the predatory mite Typhlodromus pyri (Acari: Phytoseiidae) on various pear cultivars in organic and integrated orchards

Biologia ◽  
2012 ◽  
Vol 67 (3) ◽  
Author(s):  
Ján Praslička ◽  
Janka Schlarmannová ◽  
Barbora Matejovičová ◽  
Ján Tancík
Keyword(s):  
Population Density ◽  
Integrated Pest Management ◽  
Pest Management ◽  
Predatory Mite ◽  
Typhlodromus Pyri ◽  
Population Densities

AbstractDuring an experiment carried out in 2009–2010 we observed different population densities of Typhlodromus pyri in three monitored pear cultivars in Organic Pest Management (OPM) as well as Integrated Pest Management (IPM) orchards. In both years the population density of T. pyri was the highest in the cultivar Conference (organic orchard). The lowest population density was found in 2009 on the cultivar Dicolor (IPM orchard) and in 2010 on the cultivar Bohemica. Factors involved are discussed.

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