| Phenological event | Reference index | Date Model/ Current | Date Model/
7-day forecast | Information,
hazard to health & tree vitality | OPM monitoring and control measures |
| Start Quercus robur bud swelling |
4)
| 04.04.2020 | 04.04.2020 | First potential L1 feeding | |
| Start Q. robur leaf unfolding (DWD) |
2), 3)
| 12.04.2020 | 12.04.2020 | | Start plant protection agents (PPA) or biocide application |
| Start Q. robur leaf unfolding (model) |
2), 6)
| 15.04.2020 | 15.04.2020 | | Start plant protection agents (PPA) or biocide application |
| L1 hatching |
1), 7), 9)
| 12.03.2020 | 12.03.2020 | No health hazard due to new setae | Counting of egg batches before L1 hatching |
| L1 mortality (%) |
4), 8)
| 10 | 10 | Starvation period from L1 hatching to
Q. robur bud swelling | |
| L1 feeding start |
| 04.04.2020 | 04.04.2020 | Corresponds to Q. robur bud swelling (or L1 hatching if this occurs later than bud swelling) | |
| Start L2 |
4)
| 18.04.2020 | 18.04.2020 | No health hazard due to new setae | Start PPA/biocide application |
| Start L3 |
4)
| 26.04.2020 | 26.04.2020 | First new setae & hazard | Start PPA/biocide application |
| Start L4 |
4)
| 09.05.2020 | 09.05.2020 | Setae amount & hazard increase | End Start PPA/biocide application |
| Start L5 |
4)
| 23.05.2020 | 23.05.2020 | Setae amount & hazard further increase | |
| Start L6 |
4)
| 08.06.2020 | 08.06.2020 | Highest setae amount & hazard | |
| Start pupation |
4)
| 02.07.2020 | 02.07.2020 | Immobile stage | Counting & size assessment & mechanical removal of pupation tents, oak defoliation assessment, installation of pheromone traps (2 weeks after pupation) |
| Adult eclosion |
4)
| 10.08.2020 | 10.08.2020 | 50 % adult eclosion | End mechanical control measures, end trapping after 2 weeks no catch |
*DWD - Deutscher Wetterdienst - German Meteorological Service
References see PDF
PDF - Model applicability and references
PDF - Information: OPM setae, monitoring and control
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Web implementation & layout: Pennerstorfer, J.1, & Halbig, P.1,2
1 BOKU - University of Natural Resources and Life Sciences, Vienna, Institute of Forest Entomology, Forest Pathology and Forest Protection (IFFF)
2 FVA - Forest Research Institute Baden-Wuerttemberg, Department of Forest Protection
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