Shore Fly
Overview
Shore flies are small dark flies associated with algae, wet floors and over-irrigated propagation systems.
Unlike sciarid flies, shore fly larvae mainly feed on algae and organic matter rather than roots.
However, high populations: - contaminate crops - spread debris - indicate excessive moisture problems
Identification
Adults are: - small dark flies - strong runners - commonly seen on wet surfaces - often mistaken for sciarid fly
Conditions favouring shore fly
| Condition | Risk |
|---|---|
| Algae growth | Very High |
| Wet floors | Very High |
| Standing water | High |
| Overwatering | High |
Monitoring
Inspect: - algae zones - wet floors - beneath benches - propagation areas
Sticky traps help track adult pressure.
IPM approach
Useful strategies: - algae reduction - improved dry-down - leak management - floor hygiene - reducing standing water
Commonly affected crops
Related BioWiki pages
Key message
Shore flies are usually a warning sign of excessive moisture and algae problems.