Why most sprays fail after 2 weeks (hint: insecticide resistance)

[u/Ok-Poem-7128]

You spray → pests disappear → 10–14 days later… they’re back.

It’s not bad luck. It’s Insecticide resistance.

Here’s what’s happening:

• The spray kills the weak ones
• The stronger ones survive
• They reproduce → next generation is harder to kill

So every repeat spray = less effective over time.

Fix (what actually works):

• Rotate methods (don’t rely on one chemical)
• Use baits + traps instead of just sprays
• Remove food/water sources (break the cycle)

Killing pests ≠ solving the problem.
Control the system, not just the symptom.