Efficacy of selected pesticides against synanthropic mites under laboratory assay

Stará, Jitka; Stejskal, V.; Nešvorná, Marta; Plachý, Jan; Hubert, Jan

doi:10.1002/ps.2083

Cited by 27 publications

(32 citation statements)

References 39 publications

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“…SPMd and DDFd are described in the previous section. The oilseeds were derived from a mixture of cultivars and were prepared according to a previously described protocol (46).…”

Section: Methodsmentioning

confidence: 99%

Experimental Manipulation Shows a Greater Influence of Population than Dietary Perturbation on the Microbiome of Tyrophagus putrescentiae

Erban

Ledvinka

Nešvorná

et al. 2017

Appl Environ Microbiol

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Tyrophagus putrescentiae is inhabited by bacteria that differ among mite populations (strains) and diets. Here, we investigated how the microbiome and fitness of T. putrescentiae are altered by dietary perturbations and mite populations. Four T. putrescentiae populations, referred to as dog, Koppert, laboratory, and Phillips, underwent a perturbation, i.e., a dietary switch from a rearing diet to two experimental diets. The microbiome was investigated by sequencing the V1-V3 portion of the 16S rRNA gene, and selected bacterial taxa were quantified by quantitative PCR (qPCR) using group/taxon-specific primers. The parameters observed were the changes in mite population growth and nutritional status, i.e., the total glycogen, lipid, saccharide, and protein contents in mites. The effect of diet perturbation on the variability of the microbiome composition and population growth was lower than the effect induced by mite population. In contrast, the diet perturbation showed a greater effect on nutritional status of mites than the mite population. The endosymbionts exhibited high variations among T. putrescentiae populations, including Cardinium in the laboratory population, Blattabacterium-like bacteria in the dog population, and Wolbachia in the dog and Phillips populations. Solitalea-like and Bartonella-like bacteria were present in the dog, Koppert, and Phillips populations in different proportions. The T. putrescentiae microbiome is dynamic and varies based on both the mite population and perturbation; however, the mites remain characterized by robust bacterial communities. Bacterial endosymbionts were found in all populations but represented a dominant portion of the microbiome in only some populations. IMPORTANCEWe addressed the question of whether population origin or perturbation exerts a more significant influence on the bacterial community of the stored product mite Tyrophagus putrescentiae. The microbiomes of four populations of T. putrescentiae insects subjected to diet perturbation were compared. Based on our results, the bacterial community was more affected by the mite population than by diet perturbation. This result can be interpreted as indicating high stability of the putative intracellular symbionts in response to dietary perturbation. The changes in the absolute and relative numbers of Wolbachia, Blattabacterium-like, Solitalea-like, and Cardinium bacteria in the T. putrescentiae populations can also be caused by neutral processes other than perturbation. When nutritional status is considered, the effect of population appeared less important than the perturbation. We hypothesize that differences in the proportions of the endosymbiotic bacteria result in changes in mite population growth.KEYWORDS Tyrophagus putrescentiae, bacteria, symbiont, feeding, fitness, Cardinium, Solitalea, Bartonella, Blattabacterium, Wolbachia, 16S rRNA

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“…SPMd and DDFd are described in the previous section. The oilseeds were derived from a mixture of cultivars and were prepared according to a previously described protocol (46).…”

Section: Methodsmentioning

confidence: 99%

Experimental Manipulation Shows a Greater Influence of Population than Dietary Perturbation on the Microbiome of Tyrophagus putrescentiae

Erban

Ledvinka

Nešvorná

et al. 2017

Appl Environ Microbiol

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“…These findings extended the spectrum of possible uses of these products from house dust mites to stored product mites (Colloff 1990;Downing et al 1990;Rembold 2005;Sánchez-Ramos and Castañera 2003;Suhaili and Ho 2008;Stará et al 2011).…”

Section: Discussionmentioning

confidence: 85%

“…In a previous study, it was found that compounds that are highly toxic to house dust mites (e.g., Dermatophagoides pteronyssinus and D. farinae) are also effective for the control of Tyrophagus putrescentiae (Stará et al 2011). Of the tested acaricides, benzyl-benzoate, neem, and a multi-compound acaricide based on the combination of benzyl-benzoate, permethrin, and pyriproxyfen (hereafter denoted benzyl-benzoate/permethrin/pyriproxyfen) were among the most effective acaricides.…”

Section: Discussionmentioning

confidence: 99%

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The toxicity of selected acaricides against five stored product mites under laboratory assay

2011

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In laboratory tests, the toxicity of acaricides targeted against house dust mites was tested on five species of stored product mites (Acarus siro, Aleuroglyphus ovatus, Carpoglyphus lactis, Lepidoglyphus destructor, and Tyroborus lini). The formulations of benzyl-benzoate, benzylbenzoate/permethrin/pyriproxyfen, and neem were diluted in water and applied to filter paper in an unventilated chamber. The mortality of mites was observed after 24 h of exposure to acaricide-impregnated filter paper. All of the tested acaricides were toxic to all of the mite species. There were significant differences in mortality among the species and the acaricides. Benzyl-benzoate/permethrin/pyriproxyfen was the most effective, followed by benzyl-benzoate and neem. L. destructor (LD 50 0.01-0.11 lg) was the most sensitive mite species, followed by A. siro (LD 50 0.04-0.12 lg), T. lini (LD 50 2-21 lg), A. ovatus (LD 50 3-18 lg), and C. lactis (LD 50 4-64 lg). Based on the highly toxic effects of the tested acaricides against the stored product mites, the acaricides should be considered as a potential tool in the control of stored product mites, although next screening is necessary.

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“…In agricultural and industrial facilities, controls include fumigation, contact, and residual acaricidal sprays and dusts. Numerous efÞcacy tests have been performed with experimental and formulated acaricides against mold mites in the context of agricultural and industrial settings (Kim et al 2003;Collins and Cook 2006a,b;Palyvos et al 2006;Hubert et al 2007;Jeong et al 2008;Stará et al 2011). In retail facilities, fewer control options are available.…”

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confidence: 99%

Efficacy and Application Considerations of Selected Residual Acaricides Against the Mold Mite <I>Tyrophagus putrescentiae</I> (Acari: Acaridae) in Simulated Retail Habitats

Freitag

Kells

2013

jnl. econ. entom.

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The mold mite, Tyrophagus putrescentiae (Schrank), is a stored product pest of economic significance that commonly infests many types of food and animal feed products. There is limited information regarding pest management tactics, including residual acaricides for managing this pest in retail store habitats. The purpose of this study was to assess the potential of commercially available acaricides that could provide a protective barrier near susceptible food packages destined for consumer use. Mite mortality at 24 and 48 h was measured after exposing mites to acaricide residues applied to a nonporous surface. Two additional factors included in the study were humidity and the presence of an adjuvant to facilitate spread of acaricide on nonporous surfaces. Increasing humidity levels generally decreased acaricide efficacy. Use of the adjuvant itself did not appear to affect efficacy, but the type of application (wet or slurry, or dry) of dust acaricides significantly affected efficacy. The potential for residual acaricides to act as a barrier (within 24-48 h) against dispersal of this mite was discussed.

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Efficacy of selected pesticides against synanthropic mites under laboratory assay

Cited by 27 publications

References 39 publications

Experimental Manipulation Shows a Greater Influence of Population than Dietary Perturbation on the Microbiome of Tyrophagus putrescentiae

Experimental Manipulation Shows a Greater Influence of Population than Dietary Perturbation on the Microbiome of Tyrophagus putrescentiae

The toxicity of selected acaricides against five stored product mites under laboratory assay

Efficacy and Application Considerations of Selected Residual Acaricides Against the Mold Mite <I>Tyrophagus putrescentiae</I> (Acari: Acaridae) in Simulated Retail Habitats

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