Studies on Insects and Mites Causing Galls on the Leaves of Sycamore Maple Acer pseudoplatanus L. in the Ojcow National Park in Poland

1996

S. 54-55

4 Lit. Ang.

Unselbständiges Werk

200044394

Analytical studies were conducted of the species composition of galls occurring on the leaves of Acer pseudoplatanus L. in the Ojcow National Park in the years 1994-1995. The species composition of galls was similar in both years. The most numerous species were Aceria pseudoplatani (Corti) and Dasineura vitrina (Kieff.) in 1995. Index of occurrence frequency and Agrell's index of species co-existence have been calculated.