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Mary writes,

What is the residual life span of 250 Propoxur?

I want to know how many days, weeks, months etc. does 250 Propoxur continue to kill insects. How often to I need to respray?


Propoxur 250 can last for about 4 weeks and can be reapplied as often as every 7-10 days.

Answer last updated on: 12/21/2010

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