Reproductive response and development of three soil predaceous mites utilizing the acarid miteTyrophagus casei Oud. as an alternate diet

Rasmy, Aly H.; Nasr, A. K.; Reda, A. S.

doi:10.1007/bf01906036

Cited by 14 publications

(11 citation statements)

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“…It appears likely that all commercial cultures available under the name of H. miles are actually S. scimitus. What is less clear is the identity of mites identified as H. miles in earlier studies (Schereef et al 1980;Hoda et al 1986;Rasmy et al 1987) and from studies that do not clearly identify the source of the mites used Ali et al , 1999Berndt et al 2003).…”

Section: Discussionmentioning

confidence: 92%

“…is not an adequate food source for S. scimitus. With the exception of R. robini Clapare`de (Lesna et al 1995), other acarid mites testedincluding Acarus siro L., R. echinopus, T. casei Oudemans and T. putrescentiaehave been shown to support the successful development and reproduction of S. miles (Schereef et al 1980;Hoda et al 1986;Rasmy et al 1987;Wright and Chambers 1994;Enkegaard et al 1997), and are used for commercial production of S. scimitus mites (Steiner et al 1999).…”

Section: Discussionmentioning

confidence: 98%

“…For example, a number of papers have been published on Stratiolaelaps (=Hypoaspis) miles (Berlese), and on the related laelapid Geolaelaps (=Hypoaspis) aculeifer (Canestrini), most notably on their biology and ecology (Schereef et al 1980;Hoda et al 1986;Rasmy et al 1987;Enkegaard et al 1997;Ydergaard et al 1997;Berndt et al 2003) and on their potential use for managing pests in greenhouses (Gillespie and Quiring 1990;Chambers et al 1993;Brødsgaard et al 1996), mushroom production facilities (Ali et al , 1999Jess and Kilpatrick 2000), and in the field (Lesna et al 1995;Rat-Morris 1999). Stratiolaelaps miles is widely marketed in North America as a biological control agent to manage dark-winged fungus gnats, Bradysia spp.…”

Section: Introductionmentioning

confidence: 98%

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Development and reproduction of Stratiolaelaps scimitus (Acari: Laelapidae) with fungus gnat larvae (Diptera: Sciaridae), potworms (Oligochaeta: Enchytraeidae) or Sancassania aff. sphaerogaster (Acari: Acaridae) as the sole food source

2005

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Stratiolaelaps (=Hypoaspis) miles (Berlese) (Acari: Mesostigmata: Laelapidae) is a polyphagous soil-dwelling predatory mite that is widely marketed for use in greenhouse production systems to manage populations of dark-winged fungus gnats, Bradysia spp. (Diptera: Sciaridae) and for supplemental control of thrips. The suggestion by Walter and Campbell (2003, Biol. Control 26: 253-269) that North American commercial cultures of S. miles may actually be S. scimitus was confirmed. The development and reproduction at 21-23 degrees C of S. scimitus provided ad libidum with one of three different prey--the fungus gnat Bradysia aff. coprophila (Lintner), potworms (Enchytraeidae), or Sancassania aff. sphaerogaster (Zachvatkin, 1937) (Acari: Astigmata: Acaridae)--were compared. Developmental duration of the egg and non-feeding larval stages were 2.47 and 1.11 days, respectively; mortalities were 8.3 and 5.5%. Stratiolaelaps scimitus failed to develop beyond the protonymphal stage when provided with S. aff. sphaerogaster alone, although some feeding was observed. Development and reproduction of S. scimitus was successful on both fungus gnat larvae and enchytraeids, with no influence of prey on protonymphal duration (4.70 days) and mortality (8.3%), or on deutonymphal duration (4.61 days) and mortality (6.1%). Adult female S. scimitus feeding on potworms, compared to those feeding on fungus gnat larvae, had a significantly shorter pre-oviposition period (2.69 vs. 4.59 days). However, diet did not influence other adult female developmental or reproductive characteristics (oviposition period, 18.6 days; post-oviposition period, 6.2 days; total adult longevity, 27.3 days; total number of eggs, 26.5). S. scimitus reared on potworms tended (p = 0.06) to have a higher intrinsic rate of increase, a higher finite rate of increase and a shorter doubling time (rm = 0.142 day(-1), lambda = 1.153, Dt = 4.85 days) than those reared on fungus gnat larvae (rm = 0.105 day(-1), lambda = 1.110, Dt = 6.58 days), but differences in net reproductive rate (R0) and generation time (G) were not significant.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

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Development and reproduction of Stratiolaelaps scimitus (Acari: Laelapidae) with fungus gnat larvae (Diptera: Sciaridae), potworms (Oligochaeta: Enchytraeidae) or Sancassania aff. sphaerogaster (Acari: Acaridae) as the sole food source

2005

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“…Of the few investigations made on the development time of H. miles (Shereef et al, 1980a;Hoda et al, 1986;Rasmy et al, 1987;Wright & Chambers, 1994), only one was performed at a constant temperature of 20 C (Wright & Chambers, 1994). In their experiment, mites were fed on grain mites (Acarus siro).…”

Section: Discussionmentioning

confidence: 99%

“…Lobbes & Schotten, 1980;Ragusa & Zedan, 1988;Murphy & Sardar, 1991;Glockemann, 1992). Relatively few studies have been made on H. miles (Chambers et al, 1993;Glockemann, 1992;Rasmy et al, 1987;Shereef et al, 1980a;Wright & Chambers, 1994).…”

Section: Introductionmentioning

confidence: 99%

The predatory mite Hypoaspis miles: biological and demographic characteristics on two prey species, the mushroom sciarid fly, Lycoriella solani, and the mould mite, Tyrophagus putrescentiae

Enkegaard

Sardar

Brødsgaard

1997

Entomologia Exp Applicata

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The biology of Hypoaspis miles Berlese (Acarina: Hypoaspidae) fed on mushroom sciarid larvae (Lycoriella solani Winnertz) (Diptera: Lycoriidae) and mould mites (Tyrophagus putrescentiae Schrank) (Acari: Acaridae), was investigated by laboratory experiments at 20 °C, 75% r.h. and LD16:D8 hours. H. miles had a significantly shorter development time and a significantly lower juvenile mortality when fed on sciarid larvae than on mould mites, the development time being 14.5 days and the mortality 3.5% on the former prey. The preoviposition and postoviposition periods of H. miles were not uninfluenced by the prey species and were 5–9 and 32–37 days, respectively. Oviposition periods of 53.2 and 68.5 days and female longevities of 82 and 109.6 days were observed on diets of sciarid larvae and mould mites, respectively. Male longevity (168–219 days) was uninfluenced by the prey species. The egg production of H. miles on sciarid larvae was estimated to be 44.4 ± 4.33 eggs per female, as compared to 22.43 ± 1.79 eggs per female on mould mites. The sex‐ratio of the offspring was significantly influenced by the prey species, the ratios (♀/(♀+♂)) being 0.66 on sciarid larvae and 0.54 on mould mites. The net reproductive rate (R0) for H. miles fed on sciarid larvae was approximately 27 which was three times higher than for mites feeding on mould mites. The innate capacity of increase (rm) was highest (0.0747 day−1) when sciarid larvae served as food, giving a doubling time of 9.3 days as compared to 12.8 days on mould mites. The generation times were 44.28 on sciarid larvae and 40.67 days on mould mites. The daily food consumption rate of juvenile and adult H. miles was 0.24 and 0.86 sciarid larvae and 10.8 and 21.7 mould mites, respectively. In terms of weight consumed, however, the consumption of sciarid larvae was 2–3.5 times the weight of mould mites. The ratio of females to males influenced the oviposition period and egg production of H. miles, with virgin females laying fewer eggs over a longer period of time as compared with females with access to males. The egg production in relation to the sex‐ratio was described by models predicting a maximum number of eggs per female of 22.3 to be attained at a sex ratio of 0.69 (♀/(♀+♂)) and a maximum daily number of eggs per female of 0.33 to be attained at a sex ratio of 0.37 (♀/(♀+♂)).

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Attack rate and prey preference of Lasioseius subterraneous and Protogamasellus mica on four nematode species

2020

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Reproductive response and development of three soil predaceous mites utilizing the acarid miteTyrophagus casei Oud. as an alternate diet

Cited by 14 publications

References 1 publication

Development and reproduction of Stratiolaelaps scimitus (Acari: Laelapidae) with fungus gnat larvae (Diptera: Sciaridae), potworms (Oligochaeta: Enchytraeidae) or Sancassania aff. sphaerogaster (Acari: Acaridae) as the sole food source

Development and reproduction of Stratiolaelaps scimitus (Acari: Laelapidae) with fungus gnat larvae (Diptera: Sciaridae), potworms (Oligochaeta: Enchytraeidae) or Sancassania aff. sphaerogaster (Acari: Acaridae) as the sole food source

The predatory mite Hypoaspis miles: biological and demographic characteristics on two prey species, the mushroom sciarid fly, Lycoriella solani, and the mould mite, Tyrophagus putrescentiae

Attack rate and prey preference of Lasioseius subterraneous and Protogamasellus mica on four nematode species

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