Cheyletid fauna associated with stored products in Czechoslovakia

Žd'árková, E.

doi:10.1016/0022-474x(79)90019-5

Cited by 22 publications

(18 citation statements)

References 3 publications

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“…Biological control has been developed and tested in practice against mites of stored grain using the predator Cheyletus eruditus (Schrank) which feeds on mites of the families Acaridae and Glycyphagidae (Pulpan and Verner 1965;Zdarkova 1986Zdarkova , 1998. Cheyletus malaccensis Oudemans is the dominant cheyletid in tropical stores and the second most frequently occurring cheyletid in former Czechoslovakia (Zdarkova 1979). It is also the most common predatory mite in stored products in Greece (Palyvos and Emmanouel 2004;Palyvos et al 2008).…”

Section: Introductionmentioning

confidence: 99%

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Temperature-dependent development of the predatory mite Cheyletus malaccensis (Acari: Cheyletidae)

Palyvos

Εμμανουήλ

2008

Exp Appl Acarol

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The effect of temperature on the development of immature stages of the predator Cheyletus malaccensis Oudemans, produced by either fertilized or virgin females, was studied at 17.5, 20, 25, 30, 32.5, and 35 degrees C, 80 +/- 5% relative humidity, in complete darkness, and fed Tyrophagus putrescentiae (Schrank). The population maintained at 15 degrees C failed to reproduce. The thermal data obtained were used for the estimation of the thermal requirements (developmental thresholds, thermal constant, optimum temperature) of this predator by a linear and nonlinear model (Logan type I model). Upper and lower developmental thresholds ranged between 37.4-37.8 and 11.6-12.0 degrees C, respectively. Optimum temperature for development was estimated at between 33.1 and 33.5 degrees C. The thermal constant ranged between 238.1 and 312.5 degree-days. Based on the data of the total pre-imaginal period, immatures' survival peaked at 25 degrees C. Arrhenotokous parthenogenesis (haplodiploidy) is confirmed in the species: virgin females always produce males, whereas fertilized females give rise to offspring of both sexes. Survival of the immature stages and offspring sex ratio were not significantly influenced by temperature.

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Section: Introductionmentioning

confidence: 99%

“…Cheyletid mites are mainly free-living predators that feed on various micro-arthropods, particularly on herbivorous, fungivorous and saprophagous acaroid mites (Zdarkova 1979). Cheyletids penetrate insects and mites with their chelicerae and immediately inject saliva that paralyzes the prey (Yoshikawa 1985).…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent development of the predatory mite Cheyletus malaccensis (Acari: Cheyletidae)

Palyvos

Εμμανουήλ

2008

Exp Appl Acarol

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“…Biocontrol provides an alternative or complement to using pesticides in stored grains (Flinn & Hagstrum, 1996). The predatory mites Cheyletus eruditus , Cheyletus aversor, Cheyletus trouessarti and Cheyletus malaccensis (Acari: Actinedida: Cheyletidae) occur naturally in stored grain (Žd’árková, 1979), and C. eruditus and C. malaccensis are used for the biocontrol of mite pests, including A. siro (Pulpán & Verner, 1965). The active bio‐agent in CHEYLETIN™ (Research Institute of Crop Production, Prague, Czech Republic) is a parthenogenetic population of Cheyletus spp.…”

Section: Introductionmentioning

confidence: 99%

Combined effect of an antifeedant α‐amylase inhibitor and a predator Cheyletus malaccensis in controlling the stored‐product mite Acarus siro

Hubert

Hýblová

Münzbergová

et al. 2006

Physiological Entomology

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Acarus siro is the most abundant and frequent mite to infest stored-food products, causing allergies and transmitting mycotoxin producing fungi. The predatory mite Cheyletus malaccensis is a candidate species in the biocontrol programme for this pest. In vitro , the ␣ -amylase inhibitor acarbose is effective against the ␣ -amylase of A. siro but not against that of C. malaccensis . In vivo , the impact of acarbose on a population of A. siro is investigated along with the interaction with the predator. Various densities of adult parthenogenetic females of C. malaccensis are reared on A. siro feeding on either a control diet or a diet containing different acarbose concentrations. The combined action of both factors significantly improved the final biocontrol efficiency with C. malaccensis , compensating for the lower energetic content of the prey on acarbose by increasing the number of prey caught. Acarbose had no negative effects on the longevity and the length of oviposition period of C. malaccensis but partially reduced its fecundity. The results are discussed in the context of the integrated control of stored-product mite pests.

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“…In stored grain, mites of the family Cheyletidae are natural, free-living predators of herbivorous or fungivorous mites and of the eggs of stored product insects (Ž ďárková 1979, 1998Eliopoulos et al 2003;Pekár and Ž ďárková 2004;Pekár and Hubert 2008). These predatory mites have been used for the biocontrol of storage mites (Pulpán and Verner 1965).…”

Section: Introductionmentioning

confidence: 98%

Combination of the antifeedant bean flour and the predator Cheyletus malaccensis suppresses storage mites under laboratory conditions

Hubert

Pekár

2008

BioControl

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Stored product mites are pests of serious economic and medical importance. Recently, it has been shown that the biological control of these pests based on the use of natural compounds and predators had a high potential for success. In this study, we investigated the suppression of three pest mites by combination of the predator Cheyletus malaccensis Oudemans, 1913 and bean flour (Phaseolus vulgaris), which is an antifeedant. Wheat grain (100 g) was contaminated with 100 individuals (Acarus siro (Linnaeus, 1758), Aleuroglyphus ovatus (Troupeau, 1878) or Tyrophagus putrescentiae (Schrank, 1781)). We added bean flour in concentrations of 0, 1, 5 and 10 g kg -1 (wt/wt) and/or the predator with initial predator/prey ratios 0, 1/50, 1/25 and 1/10. The experiment was carried out under abiotic conditions that are optimal for pest development. After 21 days, pest and predators numbers were recorded. Application of flour significantly reduced populations of A. siro, slightly reduced populations of T. putrescentiae, the efficiency increased with increasing concentration. A. ovatus was not affect by bean flour. Populations of all mite species were successfully reduced by the sole addition of C. malaccensis, with a higher efficiency at higher Cheyletus ratios. The additive effect of the predator and flour was mainly apparent in the reduction of T. putrescientae. The population of C. malaccensis was not affected by the presence of bean flour. It is therefore recommended to use bean flour for the reduction of A. siro, a combination of bean flour and Cheyletus for the reduction of T. putrescientae, and only Cheyletus for the reduction of A. ovatus.

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Cheyletid fauna associated with stored products in Czechoslovakia

Cited by 22 publications

References 3 publications

Temperature-dependent development of the predatory mite Cheyletus malaccensis (Acari: Cheyletidae)

Temperature-dependent development of the predatory mite Cheyletus malaccensis (Acari: Cheyletidae)

Combined effect of an antifeedant α‐amylase inhibitor and a predator Cheyletus malaccensis in controlling the stored‐product mite Acarus siro

Combination of the antifeedant bean flour and the predator Cheyletus malaccensis suppresses storage mites under laboratory conditions

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