phyllopertha horticola
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Author(s):  
Ionuţ Bogdan HULUJAN ◽  
Teodora FLORIAN ◽  
Horia BUNESCU

Phyllopertha horticola Linné (Coleoptera: Scarabaeidae) is one of the most common phytophagous beetles in Central Europe. In 2020 the blueberry growers from the Mărişel area reported the presence of a new beetle that attacked the fruit’s flowers and leaves. The species was identified at the University of Agricultural Sciences and Veterinary Medicine in Cluj-Napoca as the garden chafer. In the following year, the plants attacked by the garden beetle were monitored in the blueberry plantation in the Mărişel area. For monitoring the garden chafer, three rows of land were randomly selected in each plot with intervals of 20 plants per row. Each plant was analyzed individually and the number of adult beetles reported on the plant was noted. The observations were made between June and July 2021. In the Elliot variety, the share of plants reported with adults of Phyllopertha horticola Linné was between 50% and 60%, the average being 55%. Regarding the maximum number of adults/plant, it was between 6 specimens (raw 1) and 9 adults/plant (raw 2). In the Bluecrop variety, the share of plants with adults of the monitored species was between 10% and 45%, with an average per variety of 25%.


2012 ◽  
Vol 64 (4) ◽  
pp. 1235-1246 ◽  
Author(s):  
Ziga Laznik ◽  
Matej Vidrih ◽  
Stanislav Trdan

In 2011, a field block trial examined the biological control of white grubs of June beetle (Amphimallon solstitialis), margined vine chafer (Anomala dubia) and garden chafer (Phyllopertha horticola) on a permanent cut grassland in Gotenica (SE Slovenia). The efficacy of Beauveria brongniartii, Beauveria bassiana, Bacillus thuringiensis var. kurstaki and Heterorhabditis bacteriophora in the form of water suspension and infested grain was tested against a control treatment. The initial number of white grubs (April 12; 39 white grubs/m2) was reduced with all tested entomopathogens up until the third evaluation (May 26; 32 white grubs/m2). However, the studied treatments were not sufficient to reduce the white grub population in the soils below the economical threshold (20 individuals/m2). The average number of white grubs was affected mostly by the treatment where the active ingredient was B. thuringiensis var. kurstaki. With one application in April, only the abundance of overwintered white grubs was reduced. To decrease the summer generation of white grubs, an application of biological agents is also required at a later time. The 8% higher dry matter yield at the first cut (June 10) compared to the second cut (September 6) provided evidence for the prior statement.


2005 ◽  
Vol 36 (2) ◽  
pp. 183-198 ◽  
Author(s):  
Eduardo Galante ◽  
Estefanía Micó

AbstractThe third instar larvae of five anomaline species, Anomala dubia (Scopoli, 1763), Anomala quadripunctata (Olivier, 1789), Blitopertha lineata (Fabricius, 1798), Mimela rugatipennis (Graells, 1849) and Phyllopertha horticola (Linnaeus, 1758) are described as well as their biological data. The analysis of the morphology of the four distinct genera studied revealed diagnostic differences in leg morphology, last abdominal segment, and spiracles. An approach to the phylogeny of the group based on larval characteristics is provided. Finally, the systematic position of Blitopertha Reitter, 1903 is discussed.


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