You can save the unused spray. I've had a bottle well over a year and it is still effective.
No idea about waiting period, but if I had to guess I'd say no, based on how permethrin works. I can put it on my clothes and is still effective up to 6 washes, so it's not likely to be wearing off...
It is a labeled use. Technically any chemical could create resistance, but permethrin will work by the same method whether you apply it ahead of time or after infestation. It is persistent on clothing for up to 6 washes. I think the effectiveness for foundation protection was like 2 years after...
Permethrin is rated to be used as a prophylactic. It can actually be applied to soil in a mixer and that treated soil is used to backfill against the foundation of the house, making the soil untenable to termites, ants, etc. I buy a 26% concentrate and treat all my work uniforms with it. It is...
Am I to understand correctly that I can treat the coop with a 0.5% solution of permethrin without egg withdrawal or worries?
I currently have an ant infestation and I was seeking solutions. I have a bottle of 28% permethrin that I mix up to treat clothing (mosquito resistant clothes) and the...