How to eliminate phorid flies?

How to eliminate phorid flies?

The key to eliminating phorid flies is to find and remove the breeding source, spraying without removing the source will only result in more flies emerging from the decaying matter.

Step 1: Find and remove the source

Phorid fly larvae grow in decaying organic matter; the breeding site must be eliminated:

• Start with garbage bins, dispose of kitchen waste daily; wash and dry the inside of the bin.
• Check the kitchen sink drain, grease and food residue buildup in pipes is the most common breeding source; disassemble the trap and clean it, or pour boiling water down the drain.
• Also check floor drains and drain openings; scrub off the slime.
• Damp mops and cloths are easily overlooked breeding sites, wring them out and hang them up after use.

Step 2: Spray insecticide

After removing the breeding source, spray dinotefuran-containing household insecticide to kill remaining adults:

• Focus on areas near garbage bins, sinks, and around drainpipes.
• Also spray walls and countertops where phorid flies frequently land.
• Once dry, the insecticide forms an invisible film; phorid flies that crawl over or land on it die. Residual effect lasts 2-4 weeks.

Step 3: Daily prevention

• Use garbage bins with lids; do not leave kitchen waste overnight.
• Clean sink strainers daily; do not wash food debris down the drain.
• Flush drains with boiling water weekly to prevent debris buildup.
• Wring out mops and cloths and hang them to dry.

Effectiveness

Removing the source combined with environmental spraying usually brings the situation under control within a few days. Spraying alone without source removal will not solve the problem.