This may occur when the soil surface, rich in organic fibers, becomes moist during rainfall, attracting a type of fly called fungus gnats to hover over the plant. Subsequently, they defecate on the plant, leaving small black droppings, which are harmless to the plant itself, similar to worm castings.
To reduce this issue, the following measures are recommended:
- Spread 1-2cm of sand on the soil surface to facilitate drying, reducing the attraction of fungus gnats.
- Spray Mr Ganick Dr Neem once a week to deter fungus gnats from gathering.
- If their numbers are high, directly pour Mr Ganick Dr Neem onto the soil surface.
