Multi Season Pre-Emergent Poa Annua Control Trial
Best turf quality from the lowest Poa annua populations plots, which were the multiple Specticle® treatments.
- Couchgrass fairway in Melbourne
- Applications Autumn 2018, Spring 2018, Autumn 2019
- % Poa Annua and turf quality assessment in Spring 2019
- Specticle® and competitor pre-emergent herbicide
Table explaining the timing of the different treatments:
| Treatment Applications | |||
| Product | Autumn 2018 | Spring 2018 | Autumn 2019 |
| UTC | |||
| Specticle | ● | ||
| Specticle | ● | ● | |
| Specticle | ● | ● | ● |
| Competitor | ● | ||
| Competitor | ● | ● | |
| Competitor | ● | ● | ● |
Cynodon Fairway, Melbourne Victoria
Results table showing Specticle applied each autumn is adequate for good Poa Annua control, even when we have germination all year.
Best turf quality from the lowest Poa Annua populations plots, which were the multiple Specticle treatments.
| Treatment Applications | Spring 2019 | ||||
| Product | Autumn 2018 |
Spring 2018 |
Autumn 2019 |
% Poa Annua | Turf Quality |
| UTC | 41 | 5.0 | |||
| Specticle® | ● | 23 | 6.0 | ||
| Specticle® | ● | ● | 5 | 7.1 | |
| Specticle® | ● | ● | ● | 4 | 7.4 |
| Competitor | ● | 33 | 5.6 | ||
| Competitor | ● | ● | 30 | 5.8 | |
| Competitor | ● | ● | ● | 30 | 5.8 |
| LSD (p<0.05) | 15 | 0.9 | |||
Cynodon Fairway, Melbourne Victoria
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