| Vasspest (Elodea canadensis) | | 2012-09-28 | 2012-09-20 | Grunningen (Innlandet, Norway) | |
| Vasspest (Elodea canadensis) | | 2011-10-13 | 2011-09-15 | skraperudtjern (Oslo, Norway) | |
| Vasspest (Elodea canadensis) | | 2006-12-13 | 2006-12-13 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2006-12-13 | 2006-02-02 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2006-10-12 | 2006-09-18 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2006-09-21 | 2006-09-14 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2006-09-21 | 2006-09-15 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2006-09-21 | 2006-09-15 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2005-09-29 | 2005-09-16 | Nordre Skeisvatn (Rogaland, Norway) | |
| Vasspest (Elodea canadensis) | | 2004-09-09 | 2004-09-03 | Glitredammen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 2004-09-02 | 2004-09-01 | Harestuvannet (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 1991-09-12 | 1991-09-12 | Burudvann (Akershus, Norway) |  |
| Vasspest (Elodea canadensis) | | 1990-09-04 | 1990-09-04 | Harestuvannet (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 1989-09-06 | 1989-09-06 | Jegersborgdammen (Oslo, Norway) | |
| Vasspest (Elodea canadensis) | | 1989-09-14 | 1989-09-14 | Lauvtjønna (Trøndelag, Norway) | |
| Vasspest (Elodea canadensis) | | 1989-08-29 | 1989-08-29 | Jarenvannet (Innlandet, Norway) | |
| Vasspest (Elodea canadensis) | | 1994-06-03 | 1994-06-03 | Opsangervatnet (Vestland, Norway) | |
| Vasspest (Elodea canadensis) | | 1989-09-25 | 1989-09-25 | Opsangervatnet (Vestland, Norway) | |
| Vasspest (Elodea canadensis) | | 1991-09-16 | 1991-09-16 | Årungen (Akershus, Norway) | |
| Vasspest (Elodea canadensis) | | 1994-09-05 | 1994-09-05 | Nøklevann (Oslo, Norway) | |
| Vasspest (Elodea canadensis) | | 1990-08-28 | 1990-08-28 | Jarenvannet (Innlandet, Norway) | |
| Vasspestslekta (Elodea sp.) | | 1993-09-02 | 1993-09-02 | Kvitblikkvannet (Nordland, Norway) | |