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Robert from Houma, La writes

Why is it inappropriate to keep a squirt/spray bottle of mixed Martin's Viper concentrate for use when needed?

I am using for roaches indoors and realize that there are spots/areas that may be missed in a general spraying.

Answer:

We do not recommend to apply Martins Viper Insect Concentrate - 16 oz. after over 24 hours mixing because the effectiveness dramatically decreases.

Answer last updated on: 07/31/2017

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