Figure 1
Occurrence of the density index (WD) in the range of galls found on the examined leaves of Fagus sylvatica L_, that is, common beech at study site No_ 1 (the Cisów Reserve) and No_ 2 (in the forest used for economic reasons in Widełki)
| SPECIES | NUMBER OF TREES WITH GALLS | NUMBER OF ATTACKED LEAVES | NUMBER OF LEAVES WITH GALLS | Density Index WD | ||||
|---|---|---|---|---|---|---|---|---|
| Site 1 | Site 2 | Site 1 | Site 2 | Site 1 | Site 2 | Site 1 | Site 2 | |
| Hartigiola annulipes | 3 | 5 | 58 | 109 | 132 | 161 | 0.4041 | 0.797 |
| Mikiola fagi | 5 | 4 | 24 | 10 | 32 | 11 | 0.1633 | 0.0436 |
| Phyllaphis fagi | 2 | 5 | 8 | 15 | 8 | 15 | 0.0163 | 0.0742 |
| Aceria stenaspis | 1 | 1 | 24 | 1 | 24 | 1 | 0.0245 | 0.001 |
| Aceria nervisequa faginea | - | 2 | - | 5 | - | 14 | - | 0.0277 |
Occurrence of the density index (WD) in the range of leaf miner damages (mines) found on the examined leaves of Fagus sylvatica L_, that is, common beech at study site No_ 1 (the Cisów Reserve) and No_ 2 (in the forest used for economic reasons in Widełki)
| SPECIES | NUMBER OF TREES WITH LEAF MINER DAMAGES | NUMBER OF ATTACKED LEAVES | NUMBER OF LEAF MINER DAMAGES | Density Index WD | ||||
|---|---|---|---|---|---|---|---|---|
| Site 1 | Site 2 | Site 1 | Site 2 | Site 1 | Site 2 | Site 1 | Site 2 | |
| Stigmella tityrella | 3 | 5 | 26 | 22 | 26 | 22 | 0.0661 | 0.0839 |
| Stigmella hemargyrella | 5 | 1 | 14 | 1 | 14 | 1 | 0.0593 | 0.0008 |
| Parornix fagivora | 3 | 5 | 4 | 28 | 4 | 28 | 0.0101 | 0.1069 |
| Lithocolletis maestingella | 5 | 5 | 188 | 207 | 180 | 198 | 0.7627 | 0.7557 |
| Chimabacche fagella | 2 | 1 | 3 | 1 | 3 | 1 | 0.0051 | 0.0008 |
| Rhynchaenus fagi | 1 | 2 | 1 | 3 | 1 | 3 | 0.0008 | 0.0046 |