Three-dimensional distribution and sampling indices of insects and mites in horizontally-stored wheat

Athanassiou, Christos G.; Kavallieratos, Nickolas G.; Palyvos, Nickolas E.; Buchelos, C. T.

doi:10.1303/aez.2003.413

Cited by 54 publications

(45 citation statements)

References 28 publications

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“…According to O'Farrell and Butler (1948) and Cusack et al (1975), bagged stored products present a larger surface area and permit a greater increases in moisture content, consequently they allow faster mite development. In a grain column, aeration and other climatic conditions are suitable for mites only 1 C in the highest zone of the bulk, and thus in such stored-grains more mites occur at the upper layer than at deeper layers (Athanassiou et al 2003;Palyvos and Emmanouel 2006).…”

Section: Discussionmentioning

confidence: 99%

“…insects), information about mites is still inadequate. Previous studies in Greece have indicated that mites were dominant in raw stored grains during the entire year (Athanassiou et al 2001(Athanassiou et al , 2003Palyvos and Emmanouel 2006). The objective of our present investigation was to study the composition of the mite species occurring in diVerent types of storage facilities, in the framework of a large-scale survey in Greece.…”

Section: Introductionmentioning

confidence: 99%

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Mites associated with stored products in Greece

2008

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A faunistic survey of mites was conducted in many product stores during a 6-year study period, 2000-2005, in Greece. A total of 1,073 samples were taken from 34 Greek counties. The survey was carried out on grains (wheat, maize, oat, barley), flour, bran, manufactured agricultural foodstuffs, dried fruits (figs, raisins), residues and dust, stored in varying quantities in five types of storage facilities (stores of agricultural cooperative unions, farm stores, commercial stores, flour mills and silos). Dominance-frequency analysis and redundancy analysis (RDA) were used to reveal the preferences of the collected taxa. Approximately 55% of the samples contained mites and 65 mite taxa were identified, belonging to 15 families in four orders. Six species, namely, Acarus gracilis Hughes, A. immobilis Griffiths, Caloglyphus oudemansi (Zachvatkin), Suidasia medanensis Oudemans, Tyrophagus perniciosus Zachvatkin and Kleemania plumigera (Oudemans), were new to the fauna of Greece. Five species, Tyrophagus similis Volgin, Blattisocius mali (Oudemans), Neoseiulus barkeri (Hughes), Cheyletus cacahuamilpensis Baker and Storchia robustus (Berlese), were recorded for the first time in stored products in Greece. Lepidoglyphus destructor (Schrank), Tyrophagus putrescentiae (Schrank) and Acarus siro L. were dominant or intermediate in all storage facilities examined. Cheyletus malaccensis Oudemans was the most common predatory mite. The highest percentage of infestation (65.3) was recorded in the samples from stores of agricultural cooperative unions. Residue-type materials had the highest degrees and percentages of infestation.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Mites associated with stored products in Greece

2008

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“…Included in this group of arthropods are stored-product mites (Krantz 1955;Athanassiou et al 2003Athanassiou et al , 2005, which can be sources of allergens associated with occupational health hazards (Hage-Hamsten-van et al 1991;Muesken et al 2000). The control of stored-product arthropods is usually accomplished through the use of organophosphate and pyrethroid insecticides (Collins 2006;White and Leesch 1996;Zettler and Arthur 2000).…”

Section: Introductionmentioning

confidence: 99%

Toxicity and efficacy of selected pesticides and new acaricides to stored product mites (Acari: Acaridida)

et al. 2007

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Stored product mites can often infest stored products, but currently there is little information regarding the efficacy of pesticides that can be used for control. In this study we evaluated several common pesticides formulated from single active ingredients (a.i.) or commercially available mixtures (chlorpyrifos, deltamethrin, beta-cyfluthrin, and a combination of deltamethrin and S-bioallethrin), plus an acaricide composed of permethrin, pyriproxyfen and benzyl benzolate, for efficacy against Acarus siro, Tyrophagus putrescentiae, and Aleuroglyphus ovatus. The pesticides were incorporated into the mite diets in a dose range of 10-1000 microg a.i. g(-1) diet. Concentrations for suppression of 50 and 90% population growth and eradication (rC0) of mites were fit to linear regression models. None of the tested pesticides gave complete eradication of A. siro, which was the most tolerant of the three mite species tested. The most effective pesticide Allergoff 175 CS was a combination product (a nano-capsule suspension of permethrin, pyriproxyfen and benzyl benzolate) labeled for dust mites, with rC0 range of 463-2453 microg a.i. (permethrin) g(-1) diet depending on the species. Least effective were chlorpyrifos and deltamethrin.

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“…In the laboratory we studied at 12 different temperatures the population growth and developmental thresholds of Acarus siro L, Aleuroglyphus ovatus (Troupeau) and Tyrophagus putrescentiae (Schrank) (Acari: Acarididae), the three most abundant mite species in grain stores (Zdarkova et al 1985;Athanassiou et al 2001Athanassiou et al , 2003. The laboratory data were collected with the incentive to simulate population growth and seasonal pest-risk of the mite species in the Czech granaries using the temperature records from grain stores.…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent population growth of three species of stored product mites (Acari: Acaridida)

et al. 2007

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The pest potential of stored product mites depends on the reproduction rate that is affected by the environmental conditions. In this study we investigated the effect of temperature, ranging from 5 to 35 degrees C, on the population growth of three important mite species, Acarus siro, Tyrophagus putrescentiae and Auleroglyphus ovatus at 85% r.h. Starting with 10 individuals the population increase of mites was observed after 3 weeks of cultivation, or after 6 weeks for those kept at low temperatures (5, 10, 12.5, and 15 degrees C). The rate of increase was calculated for each temperature and species. The obtained data were fitted with polynomial models. The mite population growth rates increased with increasing moderate temperatures until 25 degrees C, when r ( m )-values were 0.179, 0.177 and 0.190 for A. siro, A. ovatus and T. putrescentiae, respectively. The lower development threshold was 10.2 degrees C in all three species. Estimated upper temperature threshold was higher in T. putrescentiae (49 degrees C) than in A. siro and A. ovatus (38 degrees C). Simulation of the rate of population increase under ideal conditions, using real temperature records obtained from Czech grain stores, showed that the pest mite populations increase only during 3.5 months within a typical 9-month storage season in Central Europe. These results indicate that control of mites, be it chemical, physical or biological, is recommended during the months when allergens and pests are produced, i.e. from September to mid November and in May.

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Three-dimensional distribution and sampling indices of insects and mites in horizontally-stored wheat

Cited by 54 publications

References 28 publications

Mites associated with stored products in Greece

Mites associated with stored products in Greece

Toxicity and efficacy of selected pesticides and new acaricides to stored product mites (Acari: Acaridida)

Temperature-dependent population growth of three species of stored product mites (Acari: Acaridida)

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