The subject of the contract is to perform tasks in the field of active protection in order to protect habitats: 6210 Xerothermal turf, 91E0 Willow, poplar, alder and ash trees and 91F0 Alluvial oak-elm-ash forests: Elimination of an invasive plant species of the genus knotweed within the limits Natura 2000 Przyłęk nad Biała Głuchołaska and Natura 2000 Opolska Nysa Kłodzka Valley:

Part I: Performing a service consisting in the elimination of an invasive plant species from the genus knottier within the boundaries of Natura 2000 Opole Nysa Kłodzka Valley outside the land in the management of PGW Wody Polskie;

Part II: Performance of a service consisting in eliminating an invasive plant species from the genus knottier within the boundaries of Natura 2000 Przyłęk nad Biała Głuchołaska outside the land in the management of PGW Wody Polskie

I. The service consists of the following works:

a) Work consisting in eliminating knotweed with herbicides in the area indicated in Fig. 1-4.:

- in the case of knotweed located less than 5 metres from the mirror of standing and flowing water - by injecting the herbicide into the plant stem; the treatments should be carried out in two relapses: I — from the beginning of the last decade of August to the end of the first decade of September and II — in last decade of September 2022; the height of the stems subjected to injections should be above 1.5 m, and the shoot should have a thickness of at least 1.5 cm. In one lobe of the knotweed, a minimum of 70% of shoots meeting the above dimensions must be injected. By the lobe of the knotweed, a compact cluster of stems that can stand out in the field as a group of plants (derived from one rhizome) should be understood. If there are single stems (height above 1.5 m and shoot thickness minimum 1.5 cm), the treatment should be used on each of them. For plants with a thickness of less than 1.5 cm, lubrication of assimilation apparatus and stems (minimum 90% of all leaves) is allowed;

- in the case of knot located at a distance of more than 5 meters from the mirror of standing and flowing water - by spraying the assimilation apparatus and stems with herbicide; procedures should be carried out in two relapses: in the first and last decade of September. Use the treatment on all plants (knot), on windless and rainless days (such weather should also persist for 6 hours after spraying/ruining). During the procedure, do not mow or break or destroy shoots; in the case of compact knotweed lobes, it is permissible to create working paths for the movement of persons performing the activity;

b) Removal of biomass from the treatment site is not required.

I. The service consists of the following works:

a) Work consisting in eliminating knotweed with herbicides in the area indicated in Figure 1-2:

- in the case of knotweed located less than 5 metres from the mirror of standing and flowing water - by injecting the herbicide into the plant stem; the treatments should be carried out in two relapses: I — from the beginning of the last decade of August to the end of the first decade of September and II — in last decade of September 2022; the height of the stems subjected to injections should be above 1.5 m, and the shoot should have a thickness of at least 1.5 cm. In one lobe of the knotweed, a minimum of 70% of shoots meeting the above dimensions must be injected. By the lobe of the knotweed, a compact cluster of stems that can stand out in the field as a group of plants (derived from one rhizome) should be understood. If there are single stems (height above 1.5 m and shoot thickness minimum 1.5 cm), the treatment should be used on each of them. For plants less than 1.5 cm thick, lubrication of assimilation apparatus and stems (minimum 90% of all leaves) is allowed;

- in the case of knot located at a distance of more than 5 meters from the mirror of standing and flowing water - by spraying the assimilation apparatus and stems with herbicide; procedures should be carried out in two relapses: in the first and last decade of September. Use the treatment on all plants (knot), on windless and rainless days (such weather should also persist for 6 hours after spraying/ruining). During the procedure, do not mow or break or destroy shoots; in the case of compact knotweed lobes, it is permissible to create working paths for the movement of persons performing the activity;

b) Removal of biomass from the treatment site is not required.