نتایج جستجو برای: adalia bipunctata

تعداد نتایج: 201  

Journal: :Hereditas 2001
I A Zakharov E V Shaikevich

The genetic composition and sex ratio in the Stockholm populations of Adalia bipunctata have been studied. The overall frequency of melanics is 3.2%, which is significantly lower than in the populations of St. Petersburg and other large cities along the Baltic Sea. The secondary sex ratio in the Stockholm populations is female-biased 82:18. More than half of A. bipunctata females are infected w...

2016
Maria Luisa Dindo Santolo Francati Alberto Lanzoni Cinzia di Vitantonio Elisa Marchetti Giovanni Burgio Stefano Maini

Harmonia axyridis (Pallas) has been introduced either intentionally or accidentally in different areas outside its native range, where it is often regarded as invasive. Dinocampus coccinellae (Schrank) has been recorded to parasitize H. axyridis in the field, both in the native and introduced areas, Italy included. The percent of parasitism found in our field investigation was low (four percent...

2007
Inamullah Khan Sadrud Din Said Khan Khalil Muhammad Ather Rafi

An extensive survey of predatory Coccinellid beetles (Coleoptera: Coccinellidae) was conducted in the Chitral District, Pakistan, over a period of 7 months (April through October, 2001). A total of 2600 specimens of Coccinellids were collected from 12 different localities having altitudes from 1219.40-2651.63 m. Twelve different species belonging to 9 genera of 3 tribes and 2 sub-families were ...

2009
Taro Saito

A microsporidium from H. convergens was transmitted horizontally to three non-target coccinellids (Adalia bipunctata L., Coccinella septempunctata L. and Harmonia axyridis Pallas) under laboratory conditions. The effects of microsporidiosis on larval development, larval mortality, sex ratio, fecundity and adult longevity were examined. For all beetle species, larval development was prolonged as...

Journal: :Applied and environmental microbiology 2001
J H von der Schulenburg M Habig J J Sloggett K M Webberley D Bertrand G D Hurst M E Majerus

The diversity of endosymbiotic bacteria that kill male host offspring during embryogenesis and their frequencies in certain groups of host taxa suggest that the evolution of male killing and the subsequent spread of male-killing symbionts are primarily determined by host life history characteristics. We studied the 10-spot ladybird beetle, Adalia decempunctata L. (Coleoptera: Coccinellidae), in...

2012
C. Lidwien Raak-van den Berg Hendrika J. De Lange Joop C. Van Lenteren

Harmonia axyridis has been introduced as a biological control agent in Europe and the USA. Since its introduction, it has established and spread, and it is now regarded as an invasive alien species. It has been suggested that intraguild predation is especially important for the invasion success of H. axyridis. The aim of this study was to compare the intraguild predation behaviour of three lady...

2007
Inamullah Khan Sadrud Din Said Khan Khalil Muhammad Ather Rafi

An extensive survey of predatory Coccinellid beetles (Coleoptera: Coccinellidae) was conducted in the Chitral District, Pakistan, over a period of 7 months (April through October, 2001). A total of 2600 specimens of Coccinellids were collected from 12 different localities having altitudes from 1219.40–2651.63 m. Twelve different species belonging to 9 genera of 3 tribes and 2 sub-families were ...

2010
Mohammad. Amin. Jalali Luc Tirry Abbas Arbab Patrick De Clercq

The ability of a natural enemy to tolerate a wide temperature range is a critical factor in the evaluation of its suitability as a biological control agent. In the current study, temperature-dependent development of the two-spotted ladybeetle A. bipunctata L. (Coleoptera: Coccinellidae) was evaluated on Myzus persicae (Sulzer) (Hemiptera: Aphididae) and a factitious food consisting of moist bee...

Journal: :Ecological genetics 2023

The dynamics of the composition populations Adalia bipunctata L. in St. Petersburg and Yalta (Crimean Peninsula) for 4732 years has been studied. proportion black individuals them decreased by almost 2 times. Comparison with climatic features habitats (average annual temperature) showed that population negatively correlates average temperature previous year. observed change geographically remot...

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