Phytoseiid mites under environmental stress

When do predatory mites (Phytoseiidae) attack? Understanding their diel and seasonal predation patterns

“…In predator–prey systems, light or dark preferences could influence feeding or reproduction, as these are frequently associated with the spatial distribution of food sources (e.g., adaxial or abaxial side of the leaf) (Villanueva & Childers, ; Sudo & Osakabe, ). Tetranychus urticae and P. citri distributions, mostly on lower and upper leaf surfaces, respectively (Tachi & Osakabe, ), have been associated with their different sensitivity to UV radiation (Ohtsuka & Osakabe, ; Fukaya et al ., ; Suzuki et al ., ; Ghazy et al ., ). Therefore, differences in the time of day at which predation occurred could be related to the position of the preferred prey and/or their different UV sensitivity, such as P. persimilis being less UV sensitive than N. californicus (Tachi & Osakabe, , ; Ghazy et al ., ).…”

“…Tetranychus urticae and P. citri distributions, mostly on lower and upper leaf surfaces, respectively (Tachi & Osakabe, 2012), have been associated with their different sensitivity to UV radiation (Ohtsuka & Osakabe, 2009;Fukaya et al, 2013;Suzuki et al, 2013;Ghazy et al, 2016). Therefore, differences in the time of day at which predation occurred could be related to the position of the preferred prey and/or their different UV sensitivity, such as P. persimilis being less UV sensitive than N. californicus (Tachi & Osakabe, 2012Ghazy et al, 2016). Accordingly, our results show that the latter preferentially preyed early in the morning and late in the evening in summer and winter, respectively ( Table 2).…”

Pesticides and passive dispersal: acaricide‐ and starvation‐induced take‐off of the predatory mite Neoseiulus baraki

“…Regardless, dispersal is determined by the balance between the costs and benefits guiding phenotype‐dependent and condition‐dependent decisions . Declining habitat suitability is an important trigger of dispersal, including reduction of food sources, and changes in temperature and humidity conditions, among others . Management tactics also potentially compromise habitat suitability, favouring dispersal from the contaminated habitat, a typical condition‐dependent decision, although pesticide use may also shift species dominance and prevailing population phenotypes .…”

“…However, these organisms use a variety of dispersal tactics for reaching alternative patches of suitable habitats . Therefore, mites are suitable models in which to explore the potential effect of pesticides on passive dispersal, which is also usually affected by food deprivation . Wind dispersion is common among mite species, and can be favoured by behaviours and postures that prepare the mite for take‐off and dispersal .…”

Efectos de las condiciones abióticas sobre las interacciones entre tres depredadores de Tetranychus urticae con distintos hábitos alimenticios

“…de distintos depredadores fitoseideos (Mori and Chant 1966;Ferragut et al 1987;Morewood 1992;De Courcy Williams et al 2004;Ahn et al 2010;El Taj and Jung 2012;Ozawa et al 2012;Ghazy et al 2013Ghazy et al , 2016Vangansbeke et al 2015b;Guzmán et al 2016a). Nuestros resultados en condiciones de campo, indican que las condiciones de cambio climático pueden alterar la regulación natural de T.…”