Study on cicada entomofauna (Homoptera, Auchenorrhyncha) in alfalfa forage | Проучване върху цикадната ентомофауна (Homoptera, Auchenorrhyncha) при люцерна за фураж
2012
Nikolova, I., Institute of Forage Crops, Pleven (Bulgaria)
During the period 2006 to 2009 of the experimental field of the Institute of forage crops - Pleven has been studied entomofauna of Homoptera, Auchenorrhyncha order in alfalfa forage. It was found that the order was represented from 26 species that belong to 9 families and 22 genera. The most diverse composition was family Cicadellidae, containing 14 species and 12 genera. It had the highest part of the total population density of cicadas - 76.3%. Economic importance species for alfalfa were dominant and subdominant cicadas. Dominant species were Empoasca pteridis (22.0%) and Agallia ribauti (19.4%), subdominantn species were Peragallia sinuata (13.6%), Philaenus spumarius (11.2%) and Paraphlepsius irroratus (10.4%). Common cicada fauna of alfalfa was significantly high participation in April, June, July and August, which was determined by the number of dominant and subdominant species when alfalfa grown for forage was most vulnerable to damage. Paraphlepsius irroratus was reported as a new harmful species which cause damage in alfalfa.
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