نتایج جستجو برای: cacopsylla

تعداد نتایج: 128  

2012
XINYU LUO FASHENG LI YANFANG MA

The Chinese pear psyllids, Cacopsylla spp., associated with Pyrus ussuriensis are reviewed. Three new species, C. accincta sp. n., C. burckhardti sp. n., and C. cinereosignata sp. n., are described. Cacopsylla liaoli (Yang & Li), C. qiuzili Li, C. maculatili Li and C. chinensis (Yang & Li) are redescribed. A key to the adults of the seven species and a key to nymphs of three species are given.

2016
Marcos Miñarro Aitor Somoano Aránzazu Moreno Rocío Rosa García

The apple proliferation (AP) disease is spread mostly by two psyllids. Each species plays a predominant role as AP vector that changes regionally. Thus, there is an urgent need to identify the AP vectors in each region where the disease is present. This research aimed at identifying the psyllid community in apple orchards from Asturias (NW Spain) and studying their possible role in AP transmiss...

2013
Jowita Drohojowska Małgorzata Kalandyk-Kołodziejczyk Ewa Simon

The paper concerns with characteristics of a thorax morphological structure Cacopsylla Ossiannilsson, 1970 species, referring to an analysis of five species classified in the past in three subgenera. The structure of the sternites, tergites and pleurites of all the parts of the thorax was studied by a scanning microscope. Descriptions of particular elements building up thorax plates, their shap...

2007
Rosemarie TEDESCHI

The two acknowledged vectors of ‘Candidatus Phytoplasma mali’ in north-western Italy, the psyllid Cacopsylla melanoneura and the leafhopper Fieberiella florii, have been compared to highlight their role in the apple proliferation epidemiology in relation to their infectivity, transmission efficiency and permanence in apple orchards and in wild vegetation, predominantly hawthorn formations. The ...

Journal: :Folia biologica 2009
Eugenia S Labina Seppo Nokkala Anna Maryańska-Nadachowska Valentina G Kuznetsova

In Cacopsylla myrtilli (W. Wagner, 1947) bisexual populations, all-female populations and populations heavily biased towards females have been described. In the present paper all the available data on the distribution and population sex ratio of C. myrtilli are summarized. New data obtained by the authors are also presented. First records for Russia are described from Siberia and the southern p...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید مدنی آذربایجان - دانشکده کشاورزی 1393

پسیل¬های بالاخانواده psylloidea یکی از گروه های بسیار مهم حشرات هستند که در طبیعت در تعامل تنگاتنگ با درختان مثمر و غیرمثمر، درختچه های زینتی، گیاهان علفی و مرتعی می باشند و در برخی موارد به صورت آفت ظاهر می شوند. در ایران اطلاعات بسیار محدودی در ارتباط با تنوع گونه ای این حشرات وجود دارد. پسیل¬ها متعلق به راسته ی hemiptera، زیرراسته ی sternorrhyncha و بالا خانواده¬ی psylloidea می باشند. جمع آو...

Journal: :Agronomy 2023

The mitochondrial genomes of two vector psyllids the ‘Candidatus Phytoplasma mali’, Cacopsylla picta and C. melanoneura, were sequenced using high-throughput sequencing on Illumina platform. main objective study was to describe their mitogenome characterize genetic variability potential changes in context observed global warming. four complete sequences for picta, 14,801 bp 14,802 length, one p...

Journal: :Pest management science 2002
Lukas Schaub Sylvain Sardy Gorana Capkun

Mortality of pear psylla to amitraz was studied by means of bioassays. Variation between samples, temporal variation within the season in one orchard and spatial variation between Swiss regions were considered. Variation between samples was large enough to produce different Probit functions and LC50 values. Temporal and spatial variations were too small to indicate resistance. Prediction interv...

طی مطالعه فونستیک پسیل­ها (Hemiptera: Psyllidae)در استان کرمان در بهار 1394، گونه Cacopsylla dissimilis (Baeva) comb. nov.  از روی درخت بید، Salix pycnostachya،جمع­آوری شد. این گونه قبلاً فقط از تاجیکستان گزارش شده ‌بود و در این تحقیق برای اولین‌بار از ایران گزارش می­شود. همچنین، گونه میزبان گیاهی آن، Salix pycnostachya، گزارش جدیدی محسوب می‌شود. ویژگی­های ریخت­شناختی حشرات بالغ و پوره­های سن پن...

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