Cultural control of narcissus bulb fly

Narcissus bulb fly can be difficult to control since there are no biological or chemical means of dealing with this pest. 

There are a number of cultural practices that will help control narcissus bulb fly populations.

- Plant bulbs in exposed, partially-shaded sites since adult flies like warm, sheltered spots.

- Firm the soil around bulb plants after flowering. This makes is more difficult for female flies to lay eggs in the soil.

- Buy bulbs from reputable sellers. 

- Protect bulbs with insect-proof mesh in late spring and early summer when female flies are laying eggs,

- Dig up and destroy the bulbs of any plants that show signs of a narcissus bulb fly infestation.