Volume 6
Issue 2
Horticulture
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume6/issue2/horticulture/abs-09.html
THE SPECIES COMPOSITION AND NUMBER OF APHIDS ON THE SHRUBS OF PINUS MUGO TURRA AND ROSA SP. IN URBAN CONDITIONS
Bożenna Ja¶kiewicz
ABSTRACT
The purpose of the studies conducted in Lublin in the years 1999-2001 was to establish the species composition and number of aphids on the shrubs of dwarf mountain pine (Pinus mugo Turra) and park rose (Rosa sp.). Observations were carried out in the green areas of the city in the street site (A) and the park site (B). Four species of aphids were found on the dwarf mountain pine and eight on the park rose. The shrubs of dwarf mountain pine were inhabited by a greater number of aphids in site A, an exception being two species (C. pini and E. rileyi), which occurred in greater numbers in site B. In site A all species of aphids were observed on the shrubs of park rose and their populations were more numerous, while in site B only six aphid species occurred and their number was smaller. The greatest number of all aphids was noticed in 2000, while the smallest in 1999.
Key words: aphids, Pinus mugo Turra, Rosa sp., urban conditions..