Pest ControlQuestion 223 of 319
Pest Control Operators are advised to ROTATE among different classes of pesticide active ingredients over time mainly because:
a.Rotation makes pesticides smell better to customers
b.Repeatedly using the same active ingredient lets surviving pests develop resistance; rotating active-ingredient classes slows resistance
c.Rotation lets the PCO charge a higher hourly rate
d.Federal law requires a new chemical at every visit, regardless of effectiveness
Explanation
When the same active ingredient is used over and over, the small fraction of pests that can tolerate it survive and pass that trait on, producing a resistant population. Rotating among different chemical classes (and combining with non-chemical IPM tools) slows resistance and keeps treatments effective.
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