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  1. Article ; Online: Development of Rhyzopertha dominica (F.) (Coleoptera Bostrichidae) on durum wheat kernels and semolina

    Lidia Limonta / Matteo Carlo Morosini / Daria Patrizia Locatelli

    Journal of Entomological and Acarological Research, Vol 43, Iss 1, Pp 33-

    2011  Volume 38

    Abstract: he time necessary to larvae of Rhyzopertha dominica to drill kernels with or without dusts (semolina or debris from adults), and the possibility of development on semolina were evaluated. T ests were carried out on durum wheat kernels ( Triticum durum ... ...

    Abstract he time necessary to larvae of Rhyzopertha dominica to drill kernels with or without dusts (semolina or debris from adults), and the possibility of development on semolina were evaluated. T ests were carried out on durum wheat kernels ( Triticum durum Desfontaines), debris deriving from rearing, and semolina. Development was observed also on 0.5 and 6 mm of semolina and of debris. T hirty replicates were carried out for each test. The number of first instar larvae, that successfully drill sound kernels within 10 days, was higher by adding semolina or debris. When only kernels were provided, the time needed to larvae to drill increased. Development and the number of emerging adults were not significantly influenced by the addition of semolina to the kernels. Larvae couldn’t develop on 0.5 mm, while an equal number of individuals completed the development to adult in 6 mm of semolina as in the tests with kernels. When development was on debris, a lower number of emerged adults was observed.
    Keywords Lesser grain borer ; cereal grain ; flour ; debris ; Zoology ; QL1-991
    Language English
    Publishing date 2011-04-01T00:00:00Z
    Publisher PAGEPress Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Temperature-dependent development and survivorship of Idaea inquinata (Scopoli) (Lepidoptera Geometridae) eggs at two humidity levels

    Lidia Limonta / Juljus Sulo / Daria Patrizia Locatelli

    Journal of Entomological and Acarological Research, Vol 42, Iss 3, Pp 153-

    2010  Volume 160

    Abstract: Idaea inquinata (Scopoli) mainly feeds on dried plants, nevertheless, it is also a potential pest of stored product as it is able to develop on cereal products. The few references on the biology of this species do not deal with the influence of ... ...

    Abstract Idaea inquinata (Scopoli) mainly feeds on dried plants, nevertheless, it is also a potential pest of stored product as it is able to develop on cereal products. The few references on the biology of this species do not deal with the influence of temperature and relative humidity on egg hatching. To fi ll this gap, groups of 100 eggs, 24-48 hours old, were exposed to constant temperatures (13, 15, 36, and 38±1 °C), two relative humidities (35, 70±5%) and a photoperiod of 0:24 (Light:Dark); eight tests were carried out. E ach test was replicated four times. The lowest proportion of hatched eggs was observed at 15 °C (9.5) and 36 °C (8.7) with 35±5% R .H. while at 13 and 38 °C eggs did not hatch. A non-linear function is used to represent the developmental rates and survivorship of eggs at 35 and 70% R .H. between lower and upper thresholds temperature.
    Keywords Eggs hatching ; Temperature ; Relative humidity ; Rusty wave moth ; Zoology ; QL1-991
    Language English
    Publishing date 2010-11-01T00:00:00Z
    Publisher PAGEPress Publications
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

    Full text online

    More links

    Kategorien

    Inter-library loan at ZB MED

    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

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