Influence of surrounding trees and bushes on the phytoseiid mite fauna on apple orchard trees in Finland

Occurrence, population dynamics and winter phenology of spider mites and their phytoseiid predators in a citrus orchard in Syria

“…Relatively high diversity and densities of Phytoseiidae were collected on citrus leaves by the absence of pesticide applications in the orchard studied (Garcia-Mari et al, 1983;Tuovinen, 1994;Barbar et al, 2007). The general mean of these predators during study was four times (0.31 ± 0.03) higher than that of P. citri (0.07 ± 0.01), thereby, suggesting that they maintain the citrus red mite populations in very low levels.…”

“…Wild plants seemed to have a direct positive influence on phytoseiid species composition observed on citrus trees and have to be considered, as already well known, as reservoirs and distributors of phytoseiid mites into the orchard (Tuovinen, 1994;Tixier et al, 2006).…”

Phytoseiid mite diversity (Acari: Mesostigmata) and assessment of their spatial distribution in French apple orchards

“…Other factors, such as cover-crop type, not much studied until now in French apple orchards could affect the Phytoseiidae diversity. Some studies in apple orchards but also in citrus orchards indeed showed exchange between plants in the interrows and trees (Alston 1994;Coli et al 1994;Nyrop et al1994;Tuovinen 1994;Stanyard et al 1997;Fitzgerald and Solomon 2004;Pereira et al 2006;Aguilar et al 2008Aguilar et al , 2011Mailloux et al 2010). Nothing is known on the occurrence in inter-rows of the main Phytoseiidae species found on apple trees.…”

Cohabitation and intraleaf distribution of phytoseiid mites (Acari: Phytoseiidae) on leaves of Corylus avellana

“…Phytoseiid body size and setae influence the ability of movement through leaf hairs (Walter 1992;Kreiter et al 2002). As a large phytoseiid mite (Schausberger 1992), E. finlandicus easily and rapidly moves on a glabrous leaf area (Tuovinen 1994;Kabíček 2005) that allows them to effectively utilize their defensive strategy that depends on rapid escape before predators.…”